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STOCK KIT W/ RECEIVER EXTENSION FOR AR15-A1

STOCK KIT W/ RECEIVER EXTENSION FOR AR15-A1 Reviews & Ratings

Simple and dependable, the A1 stock is one of the most iconic AR accessories ever produced. The CMMG® A1 stock features a rear storage compartment and sling mount and includes everything you need for your Rifle length AR-15 buffer system. Made from high strength polymers for maximum durability without the need for a foam filled core. Combine this kit with your choice of Lower Parts Kit to complete your lower receiver group.

All CMMG products come with CMMG's Lifetime Quality Guarantee. Kit Includes: A1 Rifle Length Buttstock CMMG A1 Receiver Extension (Buffer Tube) AR-15 Rifle Buffer AR-15 Rifle Action Spring

See all of our AR15s and AR15 parts here.

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Reviews Summary
Overall, customers appreciate the STOCK KIT W/ RECEIVER EXTENSION FOR AR15-A1 for its affordability and solid performance. However, many report issues concerning fitting, rattling butt plates, and mismatched hardware. While it serves its purpose well, some users recommend caution regarding assembly, especially for those seeking a perfect A1 replica.
What Reviewers Are Saying
Product Quality
60%
Reviewers generally find the product to be of good quality, noting that it functions well for its intended purpose. However, some buyers express concerns about materials and fit, particularly with screws and hardware not matching traditional A1 specifications, which detracts from the overall quality perception.
Fit and Assembly Challenges
50%
Several reviews highlight challenges with fitting the stock and its components. Reviewers mention needing to adjust or file parts for them to fit correctly, suggesting that assembly may require additional effort beyond what is typical for such kits.
Sling Mount Position
30%
A common complaint is the location of the sling mount, which does not align with traditional A1 stocks, leading to frustration among buyers who expect a more authentic design. This issue seems significant enough that some suggest looking for alternative stock options.
Rattling Issues
40%
A frequent critique is that the butt plate rattles, detracting from the product's overall appeal. Some users have found solutions, like adding shims, but this indicates a quality control issue that many expected to be absent in a $100 product.
Value for Money
70%
Customers feel that the kit offers a good overall value for its price. It comes with necessary components like the extension, spring, and buffer, which many buyers find appealing despite the fitting concerns and occasional quality hiccups.
5
A1 Build
Perfect for my A1 clone.
5
A1 stock
Excellent product and excellent price
5
Really nice A1 stock
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.
4
M16A1 stock
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.
4
It looks the part
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.
3
Kinda cheap
I should have listened to the other reviews. It is not military grade like. The trap door is just a one piece plastic molding (anchor, hinge, door, and clip). Buffer, spring, and tube arw good. Overall not bad, just not great, especially for the money.
3
The only A1 length A2 on the market and it's not great
What braindead starchild thought it would be a great idea to put a slot where the sling mount is? If you want adjustability to your sling position, buy a CAR stock. WHY can't anyone make a simple C7 length A2 stock? I seriously don't get it.
3
Does the job
Bought this for an A1 clone build, and it's close enough to look the part. Like other reviews have stated, the butt plate door rattles. Like a lot. It was annoying enough that I took it apart and added plastic shims on the hinge to tighten it up a bit. Stock is completely hollow inside, so if you plan on jamming a cleaning kit in there, it's going to flop around and probably be hard to get out. My other gripe is the hardware used on the buttplate. I'm not an expert, but I'm pretty sure hex head socket screws were never used on A1 stocks. Overall, it looks close enough and functions as intended, but if I was building another I'd look elsewhere.
3
Needs some attention to detail
The stock looks like a solid stock. The fit to the lower is good. My issues are two-fold. 1. The screw to attach the buttpad to the buffer tube was incorrect. Not only was it not the A1 style screw, but it was not even the correct thread. Had to go into my spare parts drawer to find the correct screw. 2. The trapdoor in the buttpad was so poorly fit, that it just rattles when you move the rifle around. Had to add material under the door to take up the slack. I would expect more from a $100 stock. I wanted this stock specifically for the LOP. But was hoping for a little more quality.