PDA

View Full Version : New Frontier Armory AR45



Jerry R
26 August 2018, 09:41
New Frontier Armory is a manufacturer/retail organization In Las Vegas. Their web site states they are the manufacturer of all components related to the AR45 in this review, except sites and magazines.

https://www.newfrontierarmory.com/

While they do not sell complete firearms on their web site, you can purchase a complete lower and a complete upper in an AR style platform in multiple calibers and configurations.

This review is for one of their AR45 Pistols. All components were purchased from their web site at their retail price structure. I have no relationship with New Frontier Armory, nor am I receiving any compensation for this review.

I placed my order on a Thursday afternoon, and it arrived at my FFL dealer on Monday. It was well packaged, and arrived without damage.

I selected their “Slick Side” complete upper with an eight inch match barrel. It has a seven inch MLOK rail and an A2 style birdcage. The muzzle threads are 5/8-24. The Picatinny top rail slots are not marked.

Features (quoted from their web site)

Specifications and Features of the Billet AR-9/45 “Slick Side” Upper with LRBHO:
• Machined from 7075 T6 aircraft grade billet aluminum
• Matte black hard-coat anodized per Mil 8625 Type 3 Class 2
• Compatible with all standard AR-15 / AR-9 components and most aftermarket parts
• Manufactured to MILSPEC on state of the art CNC equipment for consistent quality parts and exacting tolerances
• Designed to match lines with New Frontier Armory C-9 & C-45 Billet Lower
• Contains integrated Last Round Bolt Hold Open (LRBHO) technology (PATENT PENDING) that reliably holds the bolt open when magazine is empty
• LRBHO feature is designed for lowers that accept Glock style magazines
• **NOTE — This upper is not machined for a gas tube as it is intended for blowback gas systems only
I selected their Complete C-45 Pistol Lower – Shockwave Pistol Brace.
Features (quoted from their web site)

Specifications and Features of the C-45 Stripped AR-45 Lower Receiver:
• Machined from 7075-T6 aircraft grade billet aluminum
• Matte black hard-coat anodized per Mil 8625 Type 3 Class 2
• Precision machined magazine well with beveled feed lip for easy mag swaps
• Machined and engraved to be compatible with 45 and 60 degree short throw fire control selectors such as the BAD_ASS ST 45 Lever
• Caliber marking of “Multi” so it can be used with different pistol caliber uppers
• Compatible with most standard AR-15 components and most aftermarket parts
• Take down pin spring and detent hole is threaded for a 6-32 set screw for easy capturing (hardware included)
• Upper tension screw behind grip screw (threaded hole with hardware included) to adjust any “slop” out of vertical fit between upper and lower
• Ambidextrous trigger finger rests with grooves (above and below mag release / mag catch)
• Threaded bolt catch pin (Threaded hole and hardware)
• Integrated large opening “winter” trigger guard
• Proprietary magazine catch assembly and ejector is included and installed at the factory
• Manufactured to MILSPEC (where applicable) on state of the art CNC equipment for consistent quality parts and exacting tolerances

The anodized finish is smooth, and the upper and lower show no tool or machining marks.

To complete the “build” I ordered a set of MagPul MBUS Gen-2 sights and a Sig Romeo 5 RDS. In addition to the Glock 21 factory magazines that I have, I ordered three SGM 26-round magazines from Palmetto, and three 26-round KCI magazines from New Frontier. Some YouTube videos suggested there might be an issue with feeding from the SGM magazines, so I also ordered three Wolfe 33-round extra power Glock magazine springs. These were not required during range testing.

As the lower receiver is “mil-spec” a standard fire control setup came installed. The trigger had a very short take-up and even less over-travel. It broke crisp and clean. However, the average pull weight (ten pulls on a digital scale) was six pounds fourteen ounces. My preference is a lighter pull weight. I had a new CMC Lantac E-CT1 trigger in the parts bin, and installed it without any installation problems.

However, I seem to be a defective trigger magnet. The CMC failed to reset twice during ten dry function tests. I left the CMC installed anyway, and range tested the completed unit at GriffonSec’s range. I used Winchester White Box, Blazer aluminum, and my 200 grain SWC reloads. I zeroed the MBUS sights at 15 yards and the Romeo 5 at 25 yards. At that range, the pistol stayed well within a two inch “Shoot-n-See” target paster. Accuracy was not an issue. The CMC trigger failed to reset two to three times per magazine. While GriffonSec was running plates with the pistol, it doubled once. Testing was over. We ran about 400 rounds through the AR45 with no malfunctions other than the trigger, and one issue detailed below. The pistol ejected cases about ten feet, landing between 4 and 5 o’clock.

I have pulled the CMC trigger and contacted the manufacturer as to how they want me to proceed. I replaced it with a HiperFire EDT Heavy Gunner fire control system. I have two other units with HiperFire triggers, and they work.
During testing we encountered an issue that I have determined to be self-induced. An email conversation with their Customer Service provided the insight. Their CS was quick to respond and very helpful. Give them an “A” for their customer service.

The last round bolt hold open feature stopped working after three magazines. This feature consists of a steel rod with a hook on one end, and a 90 degree bend on the other. The hook is internal to the upper and engaged by the magazine follower and pushes the external bend against the paddle to activate the bolt catch. Apparently, while ejecting a live round after a failure to reset, I may have been a little too aggressive and allowed the bolt to hit the hook end and slightly bent it forward – just enough to be off the follower. There is a groove in the upper for the hook to ride in during normal cycling, a small adjustment with needle nose pliers to re-align the hook with the groove, and all is well. I do not fault the design for this issue.

Pricing at the time I placed my order:

8” complete upper $444.95
Complete C-45 Pistol Lower – Shockwave Pistol Brace $399.99

They offer 4” 8” and 16” barreled uppers, and a side-charger upper is also available.

This is the AR45 “as received” with the exception of the magazine.

https://farm1.staticflickr.com/861/28952319217_3535506814_o.jpg (https://flic.kr/p/L7qcPx)IMG_3538 As Received (https://flic.kr/p/L7qcPx) by Jerry R (https://www.flickr.com/photos/9663868@N05/), on Flickr

The buffer and spring – buffer weight is 8 ounces.

https://farm2.staticflickr.com/1871/30413558528_59913b5fb8_o.jpg (https://flic.kr/p/NkxrmL)IMG_3710 Buffer and Spring (https://flic.kr/p/NkxrmL) by Jerry R (https://www.flickr.com/photos/9663868@N05/), on Flickr

The bolt carrier does not have a separate bolt, and contains what appears to be a 1911 style extractor that is pinned in place. The hole in the top of the carrier is where the pin is located.

https://farm2.staticflickr.com/1875/30413558218_0e16741d17_o.jpg (https://flic.kr/p/Nkxrgq)IMG_3713 Bolt Carrier (https://flic.kr/p/Nkxrgq) by Jerry R (https://www.flickr.com/photos/9663868@N05/), on Flickr

https://farm2.staticflickr.com/1876/44232669942_8c09e57a9f_o.jpg (https://flic.kr/p/2aoFZJo)IMG_3569 Bolt Carrier (https://flic.kr/p/2aoFZJo) by Jerry R (https://www.flickr.com/photos/9663868@N05/), on Flickr

The proprietary LRBHO internal “hook”:
https://farm2.staticflickr.com/1900/30413558388_9c1c622b72_o.jpg (https://flic.kr/p/Nkxrjm)IMG_3711 Barrel Breach Face (https://flic.kr/p/Nkxrjm) by Jerry R (https://www.flickr.com/photos/9663868@N05/), on Flickr

And the part that rides against the Bolt Stop Paddle:

https://farm2.staticflickr.com/1878/29344544627_eabcd55e23_o.jpg (https://flic.kr/p/LH5sLB)IMG_3547 Bolt Catch Rod (https://flic.kr/p/LH5sLB) by Jerry R (https://www.flickr.com/photos/9663868@N05/), on Flickr

The ejector is shimmed and screwed in place in the lower receiver, size is more than adequate for the task:

https://farm2.staticflickr.com/1891/30413558928_7df9e917fc_o.jpg (https://flic.kr/p/NkxrtE)IMG_3564 Lower Left Side (https://flic.kr/p/NkxrtE) by Jerry R (https://www.flickr.com/photos/9663868@N05/), on Flickr

https://farm2.staticflickr.com/1852/30413557228_dcf4e8e728_o.jpg (https://flic.kr/p/NkxqYm)IMG_3565 Lower Right Side (https://flic.kr/p/NkxqYm) by Jerry R (https://www.flickr.com/photos/9663868@N05/), on Flickr

I added MagPul MBUS sights and an Arisaka Finger Stop

https://farm2.staticflickr.com/1860/30413557578_525c995841_o.jpg (https://flic.kr/p/Nkxr5o)IMG_3547 AR45 Upper-2 (https://flic.kr/p/Nkxr5o) by Jerry R (https://www.flickr.com/photos/9663868@N05/), on Flickr

I replaced the A2 style grip with a BCM Gunfighter Mod-0, and adjusted the blade brace.

https://farm2.staticflickr.com/1859/30413557398_525c995841_o.jpg (https://flic.kr/p/Nkxr2h)IMG_3551 Grip Sights Trigger Mag (https://flic.kr/p/Nkxr2h) by Jerry R (https://www.flickr.com/photos/9663868@N05/), on Flickr

While waiting on an end place QD for a single point, I put on a Strike Industries MLOK QD and will run it with a two point sling until parts come back in stock.

https://farm2.staticflickr.com/1812/30099129028_efbc01098f_o.jpg (https://flic.kr/p/MRKUqu)IMG_3552 SI Sling Swivel (https://flic.kr/p/MRKUqu) by Jerry R (https://www.flickr.com/photos/9663868@N05/), on Flickr

Having shot a friend’s AR pistol that had a Sig Romeo 5 RDS, I selected that for this pistol. A nice, inexpensive site that seems to work well.

https://farm2.staticflickr.com/1895/30413558738_e7e1381e24_o.jpg (https://flic.kr/p/Nkxrqo)IMG_3570 Sig Romeo 5 (https://flic.kr/p/Nkxrqo) by Jerry R (https://www.flickr.com/photos/9663868@N05/), on Flickr

The completed pistol:

https://farm2.staticflickr.com/1887/30413557088_b22eb0bb65_o.jpg (https://flic.kr/p/NkxqVW)IMG_3571 Finished AR45 (https://flic.kr/p/NkxqVW) by Jerry R (https://www.flickr.com/photos/9663868@N05/), on Flickr

Visited GriffonSec to zero the pistol and ran about 400 rounds through it. I was very pleased with the accuracy. Target shown is a 25 yard target with ten rounds of Blazer aluminum ball in the center, and ten rounds of my 200 grain SWC reloads in the upper right square. Both groups were bench rest and are POA/POI.

https://farm2.staticflickr.com/1866/30413557988_e165aca786_o.jpg (https://flic.kr/p/Nkxrcs)25 Yard Zero (https://flic.kr/p/Nkxrcs) by Jerry R (https://www.flickr.com/photos/9663868@N05/), on Flickr

UWone77
26 August 2018, 14:29
Jerry, curious what CMC told you how to proceed?

As pistol caliber AR's become more and more popular, it seems like we're figuring out there are geometry differences as far as trigger function, thus AR triggers are now not recommended for pistol caliber use. I know CMC is coming out with their pistol specific trigger. What changes vs the AR15 version however, I have no idea.

Jerry R
26 August 2018, 17:09
CMC has not responded. I will send a second note this week. To me, failure to reset is an issue that should not be platform specific unless there are significant geometry issues in the bolt carrier and how it depresses the hammer. The Hiperfire passes (so far) dry function testing without failure. I will be range testing it fairly soon to verify. I inspected the New Frontier hammer, trigger, disconnector, and they appear "mil-spec". At this point, my only suspect is the CMC. I will update this thread with any new findings.

Jerry R
20 September 2018, 11:22
CMC returned the trigger today - with repairs. Apparently, the hammer was defective.
5861

Stickman
21 September 2018, 09:32
So how does she shoot now? Did the fix work?

Jerry R
21 September 2018, 09:59
So how does she shoot now? Did the fix work?

Going to GriffonSec's on the 10th of October to wring it out. Passes function test every time now. But ... I put a HiperFire Heavy Gunner FCG in it. The CMC went into the parts box for the next build. I didn't know when/if the trigger would be returned or replaced.

ZhouJett
21 September 2018, 11:53
Ide like to do a pistol in 9mm someday..
is the HyperFire a PCC trigger..?
If not Why did it work..?
Im learning here..

alamo5000
21 September 2018, 13:00
CMC returned the trigger today - with repairs. Apparently, the hammer was defective.
5861

Is that the new PCC designated trigger from CMC?

They were at Triggercon and announced triggers specifically for pistol caliber carbines. Here is the video that Chris Tran did.


https://www.youtube.com/watch?v=ZVerVeFDKLk

Jerry R
21 September 2018, 13:04
Is that the new PCC designated trigger from CMC?

No, it was old stock (CMC Lantac E-CT1) from Palmetto purchased during a sale.

alamo5000
21 September 2018, 13:12
No, it was old stock (CMC Lantac E-CT1) from Palmetto purchased during a sale.

It looks like you have the trigger situation sorted, but if anyone has a situation report for the new PCC triggers I would like to hear and get an update.

Apparently according to the video the compatibility problems were a known issue.

SINNER
21 September 2018, 15:51
It was two fold on the issues. One was a clearance issue with the bolt carrier slot and the hammer. The other was a failure to reset due to bolt speed. Supposedly a slight tweak to the geometry and a narrower hammer was the fix.

I have PCC bolts from 2 different manufacturers and neither one has a narrower than Milspec hammer slot.

Jerry R
1 October 2018, 06:26
Ide like to do a pistol in 9mm someday..
is the HyperFire a PCC trigger..?
If not Why did it work..?
Im learning here..

No, the HiperFire is a standard "mil-spec" hammer/trigger/disconnector. I believe it works due to New Frontier Armory's parts design staying close to the AR originals. A friend has a NFA AR45 too. He put a HiperFire in his and ran it this past weekend. Couple hundred rounds with zero MALFs.

IvanN
19 October 2018, 09:49
AR-45 pistol?
I want to build an AR-45 pistol give dianabol 5 stars (https://athletesphysiques.com/dianabol-review-results/) anyone know where I can buy a lower/upper receiver? Im not much for the .22 or the 9mm.
https://signalscv.com/2021/09/how-to-lose-weight-fast-guide-how-to-get-skinny-fast-how-to-cut-weight/
https://pennsylvanianewstoday.com/testogen-gnc-is-it-available-through-walmart-ebay-amazon-or-gnc/241004/
https://www.fingerlakes1.com/2021/10/05/sarms-for-sale-where-to-buy-sarms-online-review-guide/
https://www.fingerlakes1.com/2021/09/20/crazy-bulk-review-legal-steroids-for-sale-how-it-works-legal-steroids-gnc/

How To Lose Weight Fast How To Get Skinny Fast How To cut weight (https://signalscv.com/2021/09/how-to-lose-weight-fast-guide-how-to-get-skinny-fast-how-to-cut-weight/)
sarms cycle (https://www.fingerlakes1.com/2021/10/05/sarms-for-sale-where-to-buy-sarms-online-review-guide/)
where to buy sarms (https://www.fingerlakes1.com/2021/10/05/sarms-for-sale-where-to-buy-sarms-online-review-guide/)
sarms online (https://www.fingerlakes1.com/2021/10/05/sarms-for-sale-where-to-buy-sarms-online-review-guide/)
testogen gnc (https://pennsylvanianewstoday.com/testogen-gnc-is-it-available-through-walmart-ebay-amazon-or-gnc/241004/)
Legal steroids for sale – How it works? Legal steroids GNC (https://www.fingerlakes1.com/2021/09/20/crazy-bulk-review-legal-steroids-for-sale-how-it-works-legal-steroids-gnc/)

BoilerUp
20 October 2018, 05:31
AR-45 pistol?
I want to build an AR-45 pistol anyone know where I can buy a lower/upper receiver? Im not much for the .22 or the 9mm.

https://www.quartercircle10.com/products/receivers/receiver-sets/glf-s-prcu-s.html

https://www.newfrontierarmory.com/product-category/ar-45-10-platform/ar-45-10-lower-receivers/

GriffonSec
21 October 2018, 08:40
Expect an in depth update after this weekend soon. Ran in to quite a few issues this weekend on both New Frontier 45s this weekend.

Jerry R
23 October 2018, 08:17
Expect an in depth update after this weekend soon. Ran in to quite a few issues this weekend on both New Frontier 45s this weekend.

Spoiler Alert !! [BD]

Okay ... as stated, we ran a couple of NFA (New Frontier Armory) C45 AR45 Pistols pretty hard this past week. We shot Thursday through Saturday and put better than a thousand rounds through the pair. This consisted of Winchester White Box, Federal small primer ball, Federal large primer ball, Blazer aluminum ball, Remington green box ball, Remington UMC ball, Remington 230g JHP, 200g SWC reloads (two sets – mine with 5.5g W231 and Geoff’s with 5.2g W231), and 230 LRN reloads with 5.3g W231.

First, the good news. Both have HiperFire EDT Heavy Gunner triggers and there were zero MALF's that were trigger related. These are standard AR15 hammer, trigger, disconnector sets ... not drop in complete assemblies like CMC, Timney, Wilson Combat, etc.

Both C45’s have a Sig Romeo-5 RDS. We started out verifying the 25 yard zero on each unit, and chronographing each of the loads mentioned above. We also chrono’ed some of the loads against a 5” Les Baer for velocity comparisons.

After that session, we wanted a trajectory pattern, shots fired at 25 / 50 / 75 / and 100 yards. It is very fortuitous that this decision was made, as a problem was discovered.

The barrel extensions on both units are not installed perfectly square to the upper receiver.

On my C45, with a 25 yard zero, it printed 1.5 inches right at 50 yards, 3 inches right at 75 yards, and 6 inches right at 100 yards. These measurements are consistent with MOA which led to the conclusion that the assembly is not “perfect”.

On the second C45, again with a 25 yard zero, it printed 2 inches right at 50 yards, 4 inches right at 75 yards, and 8 inches right at 100 yards.

Unfortunately, the second C45 also changed elevation at 50 / 75 / and 100 yards in a manner not consistent with bullet drop … the POI was higher at each of those ranges. This barrel is not only “cocked” left to right, but up and down as well.

We then re-zeroed the second unit at 50 yards, and the 25 yard POI moved the same amount to the left. This cross-check, while not actually necessary, was to verify our conclusion that the assembly was not correct.

Both C45 units failed to reliably feed the Remington hollow-point ammunition. This was the only bullet configuration that had FTF issues. In all fairness, GriffonSec’s Colt 9mm AR would not feed 9mm JHP ammunition reliably either. These are not ramped barrels.

While the only issue, at this time, with my C45 is the improperly installed barrel, the second unit also had other issues. It would not lock the bolt on an empty magazine. As we had purchased various “spares” from NFA, we replaced the bar that toggles the bolt catch. It worked for a few magazines, and then it began to fail as well. That particular unit had also been returned to NFA soon after initial purchase because the ejector would not function properly. It was repaired and returned.

There is an issue with the ejector in that it will bump the magazine if inserted vigorously. The ejector centers over the left side of the metal liner in a Glock magazine and can produce a very small bend in the back left corner of that liner. The fix is to remove a (very) small amount of the underside of the ejector. We had also purchased spare ejectors.

I contacted NFA and spoke with their gunsmith. I went over the details of our testing and he agreed with our conclusion, and stated the units should be returned for “repair”.

I received an email confirmation of my conversation with the NFA gunsmith with an RMA attachment. I will be shipping the upper receiver assembly (sans Romeo) this week.

I will update this thread when I receive the “repaired” upper. Not sure when I will be able to do the detailed multiple-range testing again. It may not be until the spring shoot at GriffonSec’s.

At the end of the testing, with both units zeroed at 25 yards, we set up a dueling tree (6 inch plates) and ran some mano a mano competition. Have to say … it was a blast! Both units were accurate – they shot one hole groups at 25 yards (about 1.5 to 2 inches). They will ring steel as fast as you can trigger and move the dot.

Conclusions, I think the C45 design concept may have a couple of weak areas, but am very disappointed in the assembly of the unit(s). Same issue(s) on two units purchased a couple of months apart is not a good sign in my opinion. Properly assembled and tested, these could be a fun range toy, and with ball ammunition, could be an acceptable HD AR pistol.

Joelski
23 October 2018, 13:01
Jerry, do you think a barrel with a properly installed extension would fix that problem? Sucks to throw good money after bad, and still have the LRBHO issue. It doesn't appear QC10 has an engineering solution of their own for either issue.

Jerry R
23 October 2018, 16:09
Jerry, do you think a barrel with a properly installed extension would fix that problem? Sucks to throw good money after bad, and still have the LRBHO issue. It doesn't appear QC10 has an engineering solution of their own for either issue.

The NFA gunsmith was aware of the problem. While I don't know what they will do, I see several options open for the repair. a) Replace the barrel if the extension is bad [bad batch of barrels?] b) Install the existing barrel correctly if the upper receive is true [poor quality control on final assembly?] c) Use a milling machine to face the front of the upper receiver so the barrel will install perfectly square [bad batch of upper receivers?].

Since he knows the problem, it becomes obvious that these two are not the only occurrences. Everything covered under warranty, so money is no object [:D]

I have to believe they will fix the problem(s).

BoilerUp
23 October 2018, 17:17
The NFA gunsmith was aware of the problem. While I don't know what they will do, I see several options open for the repair. a) Replace the barrel if the extension is bad [bad batch of barrels?] b) Install the existing barrel correctly if the upper receive is true [poor quality control on final assembly?] c) Use a milling machine to face the front of the upper receiver so the barrel will install perfectly square [bad batch of upper receivers?].

Since he knows the problem, it becomes obvious that these two are not the only occurrences. Everything covered under warranty, so money is no object [:D]

I have to believe they will fix the problem(s).

It could also be that the pic rail isn't machined true to the bore axis. I've heard of this happening on some AR uppers years ago (I forget who the manufacturer was). If the 'smith is lucky, he just needs to true the receiver face.

SINNER
24 October 2018, 05:31
Did you try other optics or irons on these? The cocked barrel extension seems like a flawed diagnosis to me. The chance of both extensions being off in the same plane by the same amount is practically zero. Extensions have a lot less to do with accuracy than most would believe. The chamber is in the barrel so you would see some odd headspace issues and damaged brass if in fact the extension was off enough to exhibit the shift you describe.

I’d look hard at the optic used firstly, (I had a poor experience with a Holosun red dot not tracking accurately. Elevation adjustments also caused a RH shift of exactly half of the elevation change. The Sig’s are Holosun’s) and secondly a out of spec upper receiver. As mentioned the pic rail not being square and true to the receiver bore is more likely than both barrel extensions off an identical amount.

Jerry R
24 October 2018, 06:20
We did use MBUS irons, Geoff shot irons at 50 after a 25 yard zero, POI off the same as his RDS.

His unit was not off exactly the same as mine. It was not only a little further off in windage, but elevation varied as well on that one. Once we set the zero, 25 yards first, we did not adjust the red dot, merely fired for group. Then zeroed at 50 and shot at 25 for group.

Both barrels were accurate, so something is out of square with the axis of the bore. I'm not sure what it is. If their gunsmith is aware of this type of problem, they have seen it before and hopefully can fix it. I would like to not only have it fixed, but I want to know what the issue is.

GriffonSec
24 October 2018, 08:11
I'm not quite sure about it being the barrel extension itself but that the barrel is improperly torqued (or not enough), or could be the receiver itself that accepts the extension isn't quite "square" and will need to be lapped, then properly re-tourqed. Agreed, not a common issue, but could be a manufacturing/assembly issue on the company end. For giggles, we did measure the barrel OD to the edges of the rail on the muzzle end. Was off by a few thousandths L-R, but I don't think that's evidence to support our theory at the moment.

Interesting insight on the Holosun (Sig), I jumped on the bandwagon with one myself for my Kriss SDP and it's hitting POA fine. I'll have to watch mine and see if I get that result as time goes on.

GriffonSec
24 October 2018, 08:12
It could also be that the pic rail isn't machined true to the bore axis. I've heard of this happening on some AR uppers years ago (I forget who the manufacturer was). If the 'smith is lucky, he just needs to true the receiver face.

^^ This, that's exactly what I'm thinking.

Jerry R
24 October 2018, 10:10
Thanks to all for continuing comments. This is exactly why I did not put this thread in the "Read Only" review section.

Joelski
24 October 2018, 13:32
Thanks to all for continuing comments.

Second that! This is extremely helpful in doing my DD on a "someday" build. You were throwing me off with the NFA reference, I thought Gsec had a select fire PCC. [:D] New Frontier isn't exactly a household word, but the billet lower on my SBR is of the highest quality, and was my first encounter with a pinless lower receiver. The selector and takedown pins are captured with cap screws, assuring that nothing takes off flying when you take remove the grip, or end plate. I've never had an issue related to the manufacture of the receiver in terms of tolerance, or fit/finish. They happened to be one of very few manufacturers available at the time to stamp the receivers according to our specs (Via ATF variance form from the ffl that ran the group buy), and in a relatively small quantity (50 IIRC). I remember having to send pics with my form 1 eform because they didn't have a New Frontier lower in 300 BLK on file, not to mention our custom stamping.

SINNER
25 October 2018, 07:11
They do a ton of OEM manufacturing. As far as my experiences with them goes, they have always been top notch. Their 80’s are some of the best going IMO.

GriffonSec
25 October 2018, 08:04
....... I thought Gsec had a select fire PCC. [:D] ......

I Wish!

Jerry R
1 November 2018, 11:42
The upper receiver was returned today. My warranty return form was enclosed, and the gunsmith only put two words on it ... "Barrel Replaced".

I will test the repair as soon as I can.

PJD642
16 January 2019, 11:32
The upper receiver was returned today. My warranty return form was enclosed, and the gunsmith only put two words on it ... "Barrel Replaced".

I will test the repair as soon as I can.

Been following...any further updates after the return?

Jerry R
16 January 2019, 12:45
No, unfortunately I have been unable to do any range work lately. Hope to get it back out soon. Thanks for checking !