LanTac UAR Upper

[UWone77]

Lantac USA (http://www.lantac-usa.com/) will soon be releasing their new UAR Upper Receiver. These are now in production and you should see them shortly at your favorite stocking Lantac (http://www.lantac-usa.com/) Dealer.

Stay updated with all of Lantac USA's products here: http://www.lantac-usa.com/


Upper Information:


The patent pending SMOOTHCAM system features a domed head, low friction cam pin and special upper
receiver that offer ultra smooth operation.

With its blended cam recess the UAR upper is machined from Billet 7075-T6 certified aluminum and milspec, Type3, Class2, Deep Black, Hardcoat Anodized.

The UAR is a precision machined upper with a special burnished bore that gives a compacted internal surface with a roughness average in micro inches of 16, as opposed to standard bored or milled uppers that are 32-63, or higher. This reduces bolt carrier friction and creates a much smoother operation.

Barrel nut threads, bore and barrel extension surfaces are all machined in one operation so that they are
perfectly concentric and perpendicular to the barrel and fixing assembly.

The cam pin recess has been carefully designed with a smooth surface that flows into the main reciprocation channel.

This allows our specially designed radial, domed head cam pin to move with the minimum of wear against these
internal surfaces.

The CP-R360 Cam Pin has no moving parts to break or lock up, so unlike roller systems it can never fail.

Machined from 17-4 PH Stainless Steel and hardened to H900 (40RC) it is finished with a super smooth Melonite process. The cam pins circular head has a single flat face machined into it so that it can be inserted into any bolt carrier without having to remove the gas key.

The unique domed head allows the cam pin to operate in a completely different position to a traditional pin, with the radius of the head curving away from the receivers internal surface, rather than forming a hard or sharp edge on its upper corner that causes wear.

Used in conjunction with our UAR upper and you have a complete, ultra smooth, low friction, minimum wear system.


http://i1334.photobucket.com/albums/w654/richardkim0177/UARInfoSheet_zps9d91efd7.jpg (http://s1334.photobucket.com/user/richardkim0177/media/UARInfoSheet_zps9d91efd7.jpg.html)
http://i1334.photobucket.com/albums/w654/richardkim0177/UAR_PROMO_02_zpsa740a86c.jpg (http://s1334.photobucket.com/user/richardkim0177/media/UAR_PROMO_02_zpsa740a86c.jpg.html)
http://i1334.photobucket.com/albums/w654/richardkim0177/unknown_zps240cccdb.jpg (http://s1334.photobucket.com/user/richardkim0177/media/unknown_zps240cccdb.jpg.html)

[okdonk]

I want one!!

[Aragorn]

Damn... I haven't even finished my current project and already want to swap to this upper... Probably rather have their forend too. *Sigh*

[UWone77]

Damn... I haven't even finished my current project and already want to swap to this upper... Probably rather have their forend too. *Sigh*

It never ends does it?

[Aragorn]

Like.... Ever. I'm a sucker for things that increase smoothness and I have to be careful not to let things like this play me like a banjo at an Ozark hoedown. I've now flip-flopped component ideas so many times on this rebuild...

I should have been a politician.

[mustangfreek]

It never ends does it?

No.....especially when hanging out around here...lol..

[GOST]

Very nice looking upper. Have they said what the price is yet?

[GOST]

Like.... Ever. I'm a sucker for things that increase smoothness and I have to be careful not to let things like this play me like a banjo at an Ozark hoedown. I've now flip-flopped component ideas so many times on this rebuild...

I should have been a politician.

Better played like a banjo at an Ozark hoedown than a dueling one near the Cahulawassee river. If it were the latter we'd be telling you to paddle faster.[BD]

[UWone77]

Very nice looking upper. Have they said what the price is yet?

No idea on what the MSRP is. Based on other Lantac products, I assume this will be competitively priced.

They have a ton of new products coming, so I'm looking forward to seeing what else they have in store.

[Aragorn]

They have a ton of new products coming...

That is so not what I needed to hear... My RA upper is already looking like it might be moved to a build I'm scratching together for my wife so I could use this. Likewise she'll probably get my my perfectly good Spike's NiB BCG, just so I can get a Fathom.

[DutyUse]

I saw the picture for the upper and I'm impressed with Lantac's new upper, will any BCG work with their upper to "reduce friction"? It seems like in the pic they were talking about a cam, maybe a proprietary BCG completes this system?

[WarDaemon]

Beautiful upper.

[GOST]

Read some where they said the uppers will include the cam pin.

[DutyUse]

Wouldn't be surprised to eventually see Lantac make a BCG aswell if this upper does well.

Reading some more specs over at Lantac (http://www.lantac-usa.com/AR15-M16-M4-Rifle-Accessories/USRUpper.html) has peaked my interest [:D]

[Aragorn]

Yeah, I'm eagerly awaiting the release of this upper. My build is in standby waiting for it.

[Tyrannosaur]

Ya gonna need one of these it looks like. Just went on their site, they're taking pre orders with a 6-8 week lead time. Price is $250, not bad. Still want one

[DutyUse]

Would someone run into tolerance problems if they wanted to use this UAR upper and a Fathom Enhanced Nitride BCG?

The reason I ask is because both of them have changed tolerances and bearing surface changes

[GOST]

DutyUse I would email Lantac USA and ask them, they have been great at responding to my questions.

[GOST]

I would like to see one of these uppers on a forged lower (preferably my BAD lower).[:D]

[DutyUse]

Good idea Gost.. Sometimes the best answers are the most obvious lol

[Aragorn]

Would someone run into tolerance problems if they wanted to use this UAR upper and a Fathom Enhanced Nitride BCG?

The reason I ask is because both of them have changed tolerances and bearing surface changes

I'll be finding out. I have the Bcg and the upper is coming.

[GOST]

I'll be finding out. I have the Bcg and the upper is coming.

So jealous.[BD]

[voodoo_man]

Have uppers but need!!!

[CarbonScoring]

I don't suppose this thing will work with a Geissele SMR. If not, I may have to go with a CMT.

[GOST]

I don't suppose this thing will work with a Geissele SMR. If not, I may have to go with a CMT.

It may actually work with a Geissele SMR, not positive though. The front of the upper has a cut out where the SMR has tabs.

https://farm9.staticflickr.com/8579/15919791576_8f3e44c1c9_o.jpg (https://flic.kr/p/qfM6p7)UAR (https://flic.kr/p/qfM6p7) by gostsystems (https://www.flickr.com/people/123747005@N02/), on Flickr

[CarbonScoring]

That's what was giving me hope. I just don't want to drop $250 on a maybe. I'll just have to ask them. This thing would look great on the 10.5" upper I want to build.

[UWone77]

Hopefully, I'll have a UAR sample soon, and I'll throw it on my 9.5 MK2 to make sure. Really looking forward to Lantac products.

[CarbonScoring]

Thanks UW.

[GOST]

I've messaged them on FB about it, we'll see what they say.

[DutyUse]

I'll be finding out. I have the Bcg and the upper is coming.

Once you get one please confirm if the UAR would work with the fathom BCG. That's my next upper combo

[SchattenSchurke]

I am curious whether a Centurion Arms C4 Rail would work with this, seeing as that is the planned setup for my current build.

[CarbonScoring]

Without having a UAR to actually try it, I think it would be really close, but I don't think so. The anti-rotational parts of the C4 sit pretty low on the upper. But without measuring, I really can't say for certain.

[EO3]

Well, it's been a year now? Anyone picked any of these and/or the E-BCG up? I'm strongly considering both for a build. Would love some pics of the UAR on builds especially, but really any feedback from anyone that has either would be appreciated. Aesthetically, I absolutely love the Lantac stuff... but I want function, too.

[UWone77]

Well, it's been a year now? Anyone picked any of these and/or the E-BCG up? I'm strongly considering both for a build. Would love some pics of the UAR on builds especially, but really any feedback from anyone that has either would be appreciated. Aesthetically, I absolutely love the Lantac stuff... but I want function, too.

I only own 2 EBCG's, but no UAR's. I know several of the regulars here have UAR's and have posted pictures. I just can't recall who, off the top of my head.

[Dstrbdmedic167]

I had one but never shot it. Was a solid upper and when paired with the EBCG it really shined. The EBCG is smooth in any upper but that was silky smooth.. And that was just by hand...


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[Tyrannosaur]

Had a UAR, it didn't pair with the Centurion CMR I got for it so I sold it. It was a beautiful and solid peice. Now that the Spada rail has been released I'm regretting selling it... but it took so long to release the Spada.

[velocity2006]

I have one of the EBCGs and it has at least 3k on it at this point and still looks new. Hands down the smoothest bolt I own. I also have the Fathom and it cleans as easily but the action is not quite as smooth as the Lantac.

It is running in an M4E1 upper and shows minimal wear in the cam channel on the receiver compared to standard wear.

[EO3]

Thanks, guys. Sounds like if I decide to go that route, that they would make a pretty nice combo. I've wanted a UAR for the better part of a year now... And I think I'm going to finally pick one up.