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AR15 Variants and Derivitives Picture Thread

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SLR 8" SBR build done. Just waiting for a few accessories (sling end plate, AAC Blast Shield, Cloud Defensive LCS, and an actual working ScoutLight head) and repairing my BTC Spectre, but otherwise al

One of my latest build, a real Colt M16A1 converted for GBBR on the WA system. Stripped upper, barrel and BCG was changed to Viper Tech du to my local laws. Also a video of how it was made:

This took too long... a GHK based Haley Strategic x BCM Jack Carbine   RA-Tech forged receiver (Raw finish, custom BCM marking) RA-Tech CNC steel bolt Dytac Geissele SMR MK1 BCM Marking Troy styl

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Did the provided barrel nut for the URX 3.1 fit on with out a hitch? I take it that is a G&P upper and lower?


He's using a Prime upper. You can tell by the finish and the lack of a forge mark.


I can tell you from firsthand experience that the URXII and URXIII tube will fit fine on a Prime upper. I believe the thread is different for G&P, but I don't have one to check with.


The way the URX installs, the barrel nut actually threads onto the rail tube, so there is no problem there.


Probably RS rail, but... does any brand makes the Airsoft version?


Not that I know of. 5KU makes a "clone." I put that in quotes because it really doesn't look anything like a URX 3 or a URX LW. However, I'd keep my eye out on VFC, they are usually the first out with quality KAC fakes.


The real ones however are now readily available in the states.


Knights URX 3.1 + Prime magpul lower, almost done


Very nice. I'll post a very similar build in a week or so.

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Those rails do work on G&P, VFC and other AEG upper receivers. You just need to anticipate the possibility of rethreading the upper receiver. I've installed RS LW URX's and RS URX 2's and 3's on my AEGs in the past.


Also, VFC may make replicas of the new URX rails, but it may be delayed since they're working on getting licensing from KAC. Also, their production capabilities are limited and they're focused on SCARs and other guns right now. So it may be a while before they get back round to doing KAC products.

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Thanks to Fellowz I finally have the major parts for my long range/dmr/recce upper!


Since this is already sandblasted, I plan on getting it Cerakoted




I'm planning to use at lease a 16" inner barrel and so I just need to decide if I should just use this barrel with a silencer to hide the inner or if I should get a 16" outer barrel.

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