CMMG - AR-15 A1 Stock Kit W/ Receiver Extension

Perfect for my A1 clone.

Excellent product and excellent price

There is a legend around A1 stocks - they have the perfect LOP, why would you ever use anything else, and so on. But there are some drawbacks - no storage, some of the clones are considered flimsy (or at least the buttpad is), they crack easily, are discolored or badly molded, and the surplus ones are getting harder to acquire. I used this stock kit (includes the rifle length buffer tube and A1 screw) to replace a collapsible stock on one of my pre-FSA13 lowers. This A1 fixed stock lower will host, at various times, a Brownells BRN-605 upper, a BRN-16A1 upper, a PSA A4 upper, or a Daniel Defense midlength 16" upper with rifle length rail. The stock is black (rather than gray), feels solid, has a storage compartment with the typical polymer buttplate. Some people think you need a button type QD on a stock for functionality - just used a J-hook from a GI sling with a tactical sling - can still detach when needed. It looks great with all of the uppers, although if you care about color matching the BRN uppers, you will not be happy (because they are a mix of the milspec gray and black parts). But I don't care about that at all - it's a very nice stock. The only complaint I have is that the rear takedown pin is now very tight under the spring tension of the fixed stock versus what it was with the collapsible buffer tube. I need something to push it out now, rather than just using finger pressure. Otherwise, love it.

It took a tiny bit of fitting to get it installed. The stock needed about 5 minutes worth of filing to fit over the buffer tube. There were “ears” left at the edges where it met up with the tube that I had to file down. Other than that, it works great.

Product isnt bad overall. I like that it comes with everything you need (extension, spring, buffer, stock). My only complaint is that its very sproingy when firing. Put this on my MK12 Mod 1 and there is noticeable audible feedback at the shooters right ear , closest to the buffer tube. Oiling down the spring and the inside of the buffer tube mitigates this a little, but I still hear it. Just not used to it, other than that its great.