LWRC Ultra compact stock with 7.5" 5.56

AR/M4 Custom Build Forum
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I didn’t get any replies in the NFA forum so I’ll try here. I have a 7.5" pistol that runs fine with a KAK RE, Sig SB-15, badger low pro gas block, and standard carbine buffer. I am SBRing it now and I am considering the LWRC Ultra compact stock, RE, buffer and spring. Looking to see if anyone has run it with a 7.5" barrel to see how it has performed.

I am also considering a BCM VLTOR a5 if the LWRC isn’t a reliable set up for such a short barrel. I prefer the shorter system that the LWRC would provide.

I have other SBRs and don’t need input about longer barrels, just some input on how the two systems work with a 7.5" set up. Thanks.

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I’ve been playing with a 5.45 7.5" upper with the UC stock. Not 5.56 but it is similar and I have no issues from the UC stock and buffer system. I do have the gas tuned down some and you could find that the same is needed on yours depending on gas port size, though it probably won’t be if it’s fine on a standard carbine buffer.

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https://www.m4carbine.net/showthread.php?82447-PLEASE-READ-THIS-FIRST-Custom-Build-AR-Forum