CMMG AR-15 Lower Parts Kit

The CMMG AR-15 Lower Parts Kit has all of the components necessary to turn your stripped AR-15 lower receiver into a functional AR-15 lower. These parts are what controls the firing sequence, magazine retention, selector operation, and ensures a reliable rifle once fully assembled. CMMG has taken the additional step to put the small parts into color coded bags, making identification of similar looking parts easy for first time builders.

In stock


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American Owned and Operated


20+ Years In Business

Returns Accepted

Ships from Pennsylvania


The CMMG AR-15 Lower Parts Kit is a premium lower parts kit featuring parts that are all Made int the USA. CMMG has a solid decade of production experience with the AR-15 platform that includes not just lower parts kits, but complete rifles in various configurations unique to the market. Through this long track record of production experience, CMMG has built up manufacturing methods for parts that result in a superior product that meets or exceeds current military standards.

Each CMMG AR-15 Lower Parts Kit has all of the components necessary to build a functional lower receiver when paired with your AR-15 stripped lower receiver. When assembling your lower receiver from a stripped lower and a CMMG lower parts kit, you will gain insight into how your AR-15 rifle operates and functions. This new knowledge is not only satisfying but can be applied to help troubleshoot any functional issues with your AR-15 after assembly or anytime in the future.

  • Complete AR-15 Lower Parts Kit
  • Made in the USA
  • Color Coded Packages
  • Easy to Identify Parts and Install

More Information

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Customer Reviews

Good Order
Review by Kameryn Y.
Verified Buyer
lower parts kits look great. Exactly what I needed.
Exactly as described.
Review by Garfield O.
Verified Buyer
Leading AR15 lower parts kit for the price shipped by a awesome company. Thank you keepshooting!
Thanks keepshooting
Review by Chima U.
Verified Buyer
Best price I could find that was in stock. Shipping was fast from UPS.
Review by Jarmal R.
Verified Buyer
Satisfied with this AR15 lower parts kit.
Great Item
Review by Clenton I.
Verified Buyer
Would Recommend this spare part
Superb AR15 lower parts kit
Review by Cristopher T.
Verified Buyer
Received in two days after ordering. Will be back to buy from keepshooting.
Review by Diedrick M.
Verified Buyer
Received in two days after buying. Will be back to buy from keepshooting again!
Quick Delivery
Review by Stewart P.
Verified Buyer
Happy with this purchase.
Very Happy
Review by Johny L.
Verified Buyer
Parts look excellent. Exactly what I wanted.
good value
Review by drumfed
Verified Buyer
Easy to use, and the color coded bags saved a lot of time
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