This Gun builders kit includes most of the necessary parts to build up your lower group except the commonly upgraded parts. Does not include Trigger Guard, Fire Control Group, or pistol grip.

In stock

SKU 55CA601

 Secure Online Payments

 American Owned and Operated

20+ Years In Business



  • CMMG AR15 Gun Builders Lower Parts Kit
  • For Builds or Repairs
  • All Parts Meet or Exceed Mil-Spec
  • UPC: 815835015408

More Information

Related Products

CMMG AR-15 Survival Kit
CMMG 308 Premium Lower Parts Kit
CMMG AR-15 Lower Parts Kit

Customer Reviews

Good all around LPK, no FCG for those using a drop-in trigger or using a different trigger.
Review by Nedal S.
Verified Buyer
It's a good quality mil-spec parts kit. Not much more to say about it. Probably one of the better quality ones, but nothing special.
Lower parts
Review by Avis O.
Verified Buyer
Perfect fit and works like magic…
Review by Dequavious R.
Verified Buyer
Great kit. Quality parts from an American company. Color coded bags make it easier for the installation.
Easy to Install
Review by Rosa K.
Verified Buyer
All of the parts fit nicely into my build and so far, nothing out of the ordinary. I still need to test fire my rifle, but so far so good.
Nice lower parts kit
Review by Dary B.
Verified Buyer
This lower parts kit is great and it was very easy to install
CMMG quality.
Review by Kelton X.
Verified Buyer
My go to LPK. CMMG stands behind their products. Pair with KS's EPT and you have a quality lower build.
Parts for AR Lower
Review by Orlando U.
Verified Buyer
Mil spec parts! Every part has been made well and fits well in the AR lower. No issues!
Review by Kory R.
Verified Buyer
Does the job! Good quality and easy to use with clear directions.
Very Pleased
Review by Zackerie Y.
Verified Buyer
Lowest price anywhere that was available. Delivery was quick via Fedex.
Good blue collar lower kit
Review by Severo W.
Verified Buyer
Solid, dependable, well-organized kit with everything needed to build out a standard lower. There are no extra springs, so be super careful about launching those takedown pin springs!

Note: Does not include newer receiver features, like set screw for rear takedown pin spring retaining, or screw-in bolt catch pin.

Items 1 to 10 of 70 total

per page
Write Your Own Review
You're reviewing: CMMG AR15 Gun Builders Lower Parts Kit
Your Rating:

You submitted your review for moderation.