CMMG Complete AR-15 Lower Receiver Parts Kit

Bought 2 of these here, 1 from a local source. Overall a decent LPK, only problem I've had with them is the mag catch assembly is awful. 2 of 3 didn't work, completely out of spec. and the one that does feels like it catches on the lower every time you depress it. Recommend ordering a separate mag catch assembly if you order this.

I've used a few of these and really like the quality. Nice fit and finish, roll pins install easily, safeties are always nice and positive.

Easy to install, plus nicely organized. I will have to file/polish the fire control group as the disconnector is not resetting fully and the trigger needs to manually reset sometimes which kind of sucks and i should probably not have to do. I would like to think that even on a mil-spec FCG the surfaces would be inspected before bagged for distribution, but it seems as these were not.

it comes with all the bits and pieces to put together your lower save the buffer tube, spring and stock. that being said mine didnt have a plunger and i installed a bfa bfs trigger instead of the the cmmg trigger but all the other stuff seems good. except for the trigger guard that thing feels like dog doo. all in all worth the price inventory check before you build.

Everything I needed to complete my lower. Liked the color coordinated bags to keeps things organized. Good quality. Pleased with the kit.

I used only mag release and trigger group. Trigger did not reset and found that there were few machine marks on disconnect where hammer connects. I filed that a little bit with soft sand paper and polished. Worked fine as it supposed to. I like shipping of PA.

This kit has everything you need and a pistol grip you likely don't!
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<br>The color-coded bags make finding your parts a breeze, and they were all well-made. My trigger has no creep, and feels like standard weight.

5 Star trigger, finely honed hammer and trigger surfaces, is worth the price of the kit, quality parts nicely sorted in the bags and stout packaging to keep everything safe in transport. Super Fast shipping, ordered Friday on my door step Monday! Ordered something same day from another company with the new "faster" shipping dept, checked the tracking and it was still at their warehouse when my order from Primary Arms was already here at my house!

All parts were in the kit. I installed it easily into an Anderson closed ear lower. Trigger is really good in my opinion with a crisp break and short reset. Would definitely buy again for a future build.

Okay. So this was for my first build so my expectations may be a bit off. But there were some concerning points. First, the grip screw. Why, why would you use an allen head grip screw? Regular allen keys aren't long enough to get the screw all the way threaded. I have allen head sockets but not in SAE, so that required a Lowe's run. I get back and realize that the sockets don't fit in the grip very well, so that required some force. Then the safety selector kind of has a spot it hiccups on right in between safe/fire. Next, the trigger assembly. The springs seem so loose to me. Again I'm new to the AR building world, so maybe my expectations are off. But the springs seemed a bit too loose for comfort. Other than that, everything was okay. All the pins seemed to go in fairly well with some oil. The color-coding on the bags was pretty fool-proof so that was nice.

Good parts triggers are some better than others. By that I mean some are heat treated better than others. If they're hard enough,you can polish it for a good smooth 5 1/2-6lb pull,or not.as good or better than most others....

Excellent product. Comes with everything you need.
<br>Hey it couldn't been more simpler to install every bag is color coded with description and there is a video on youtube that gives perfect instruction.
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<br>-The only thing the video doesn't tell you (this doesn't knock this product just a tip) is that you should tape up your reciever with masking tape for the parts that require you to hammer in roll pins, if you don't tape it up you will mar/scratch up the receiver...personally I don't care my guns aren't safe queens so they see use and get scratched.
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<br>5/5 Product is perfect.

This is a good quality lower parts kit for a good price. Primary Arms were a pleasure to deal with like always.

A+ would recommend to anyone looking for good place to shop online! Whoever looking for parts I check primary first!

What can I say, it's a lower parts kit. I'm familiar with cmmg, and knew what to expect. A good kit, at a good price.

I really liked the separated color parts bags with identification card. I didn't care for the grip which I replaced during assembly. I would definitely use a CMMG lower parts kit again.

The best milspec AR trigger in a lpk... Lower parts kit neatly bagged Well packaged and organized.... All parts look great and fit well. Functions as it should.Grip is a standard a2 style, nothing fancy there

great would bye again

Not great quality or fit.take down pins fit very loose.

Good quality parts, standard trigger, not much more to ask for

Great price, fast shipping, product as expectedPrimary arms, always my first choice for a source for what I need

This is a great lower parts kit. I particularly appreciate the color coded packaging. Components are grouped by color - very convenient.Primary Arms service was excellent, as always.

All the parts are perfect

Everything was there and I really liked the individually bagged idea to keep things separated.

excellent service and fast shipping very satisfied