View Full Version : Geissele Super Modular Rail MK13
GOST
10 January 2017, 16:08
2498
Previewed on Geissele Automatic's Facebook page this rail will be introduced at SHOT Show 2017. The MK13 is based off the MK4 with a new barrel nut design. It is slimmer and lighter than the MK4. The MK13 also has new anti-rotation tabs. More information will be posted as it becomes available.
https://geissele.com/rails.html
Slippers
10 January 2017, 16:24
No 45 degree m-lok slots at the front end. Boo.
Uffdaphil
10 January 2017, 20:51
No 45 degree m-lok slots at the front end. Boo.
Ditto, and ditch the 3-6-9 picatinny. Yes, all M-Lok rails end up looking pretty similar, but there is a good form-follows-function reason for that.
Joelski
11 January 2017, 04:03
No 45 degree m-lok slots at the front end. Boo.
I knew there was a reason I snagged an off-set mount!
radar707
11 January 2017, 04:50
Looks kinda like the CMT rails only with the quads on the front part.
Tyrannosaur
11 January 2017, 04:52
Looks good but nothing will ever compare to the MK1 in my opinion. I snach them up when I can...
KevinBLC
11 January 2017, 05:02
Looks good but nothing will ever compare to the MK1 in my opinion. I snach them up when I can...
what makes the mk1 better?
StevethePirate
11 January 2017, 05:09
I JUST bought a Mk3 rail (nearly as good as a Mk1 from my research), but I do REALLY like this Mk13. I do miss the fancy machining on the original Mk1-4's.
I think the Mk13 will feel great with some Magpul covers (I think they make the Mk8 feel a little too bulky, with decent sized gaps).
GOST
11 January 2017, 05:13
The MK13 is probably just the first offering from Geissele's new slimmer line using the new barrel nut.
UWone77
11 January 2017, 05:56
I do love me some MK1 action. The last time they had a blem sale, they had some smoking deals on 10" MK1's and I had them in the cart only to get side tracked and they were gone.
I like the MK13 and where they're going with it. However, Picatinny rails at the 6 o'clock when they're that short and at the end is completely worthless. I like full bottom and top rails.
Tyrannosaur
11 January 2017, 08:23
The MK1s machining and overall diameter is slim especially for a guy like me with small hands. Even the mk3 which was closest to the MK1 was wider and you can feel the added girth (even though it's miniscule). The overall appearance of the MK1 makes it my preferred rail. Plus I have the option of having rails up front or not.
EO3
11 January 2017, 09:45
Glad they're making a slimmer rail. My MK8 got bulky really fast with rail covers. Not really a fan of the picatinny up front, though. I don't really understand why manufacturers decide to put picatinny anywhere but the top rail (or all 4, of course).
fledge
11 January 2017, 10:50
For rails 13" or longer, I like the short pic rail at 6 o'clock. Always ready for bipod. I know some guys like the x300 light on the 3 or 9 positions up front too. Without a pic rail, you have to add yet another attachment or wait for direct mlok keymod attachments to those components.
echang86
11 January 2017, 12:27
Looks good but nothing will ever compare to the MK1 in my opinion. I snach them up when I can...
You in the market for an ORIGINAL MK1? I'm talking pre-jelly bean cut, super heavy Mk 1 version.
Thompson
11 January 2017, 17:46
You in the market for an ORIGINAL MK1? I'm talking pre-jelly bean cut, super heavy Mk 1 version.
You have one of those? With the oval'ish cut outs?
echang86
12 January 2017, 09:18
You have one of those? With the oval'ish cut outs?
Yup! Actually surprised someone knows they exist... unless you're trident82 or work for Geissele.
Tyrannosaur
12 January 2017, 13:20
You in the market for an ORIGINAL MK1? I'm talking pre-jelly bean cut, super heavy Mk 1 version.
I just got a 15" one I think may be what you're talking about. Does it have the old bolts that protrude and aren't countersunk into the rail. Also has no qd swivel. If I was ballin' right now I probably would. Ask me after taxes start coming in...
Thompson
12 January 2017, 14:46
Yup! Actually surprised someone knows they exist... unless you're trident82 or work for Geissele.
Nope and it would be awesome if I worked for Geissele.
I have a Jack Carbine ... though I have the later variant with the pear cutouts. Still, would be nice to have one of those original ones.
I just got a 15" one I think may be what you're talking about. Does it have the old bolts that protrude and aren't countersunk into the rail. Also has no qd swivel. If I was ballin' right now I probably would. Ask me after taxes start coming in...
Pretty sure yes. It's the rail originally on the Jack Carbine, before the revision was made.
Just spoke with Geissele. The MK14 will be released in a few weeks, after the MK13. It will lack the pic rails at the front, just like the MK8.
Sent from my iPhone using Tapatalk Pro
Aberration79
9 May 2017, 19:04
I wish they would make an 8" for 9" barrels. The 7" is just a tad too short. I would be all over it. Still want one for my 16".
I wish they would make an 8" for 9" barrels. The 7" is just a tad too short. I would be all over it. Still want one for my 16".
Not a lot of 9" barrels on the market. There are a few 8.5" 300 BLK barrels, but I can see why there aren't a lot of 8" handguards on the market. The demand would be limited.
SLR makes a quality 8" handguard. It comes down to aesthetics.
The handguard length I hear most requested is the 10.75 for 11.5" barrels. I think there's a market segment for that for Geissele. As it is, KAC, Hodge, and SLR are the only quality manufacturers that come to mind in that length.
Aberration79
10 May 2017, 09:39
When I built mine one of the few complete quality uppers was from AAC. But they were hard to find in stock. So I modeled mine after them since they kind of developed the thing. At that time the only real options were 9" and 16" barrels. Seems odd people would be going longer, the only reason my simple brain can think was there were few hand guards to fit. I use an ALG EMR Keymod rail. And ALG being Giesselle.... oh well. I guess the SLR, or Mega (Same as Hodge but Hodge doesn't to 9") it is! Or I can get a different barrel LOL.
Why not the 8" Knights URX rail that came with the AAC upper?
https://www.del-ton.com/Knights_URX_III_8_0_Rail_p/km1036.htm
I sold my used AAC upper too cheap a while back.
I used the 8" URX on a 9" 300BO. If you go that route I can loan you the wrench......it wasn't exactly cheap for a one time use.
gatordev
10 May 2017, 15:45
The handguard length I hear most requested is the 10.75 for 11.5" barrels. I think there's a market segment for that for Geissele. As it is, KAC, Hodge, and SLR are the only quality manufacturers that come to mind in that length.
An interesting observation, and one I'm not disagreeing with. My interest had less to do with 11.5" and aesthetics, and more with optimal arm-grabbing length for a SBR. The reason KAC won twice on my two 12.5" guns over Centurion Arms (which I like) was strictly because I appreciated the extra 3/4"***.
***Yeah, yeah....I'll save you the time. "So does your mom!"
Aberration79
10 May 2017, 17:57
Why not the 8" Knights URX rail that came with the AAC upper?
https://www.del-ton.com/Knights_URX_III_8_0_Rail_p/km1036.htm
I sold my used AAC upper too cheap a while back.
Mainly 1913 is too bulky.
Sent from my iPhone using Tapatalk
The URX in the link is a slick rail unless you are grabbing at the magwell or at the muzzle.
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