SOPMOD AR 15 Lower Build Kit
The SOPMODÂ AR-15 Lower Build Kit from Black Rifle Depot is the perfect choice for anyone looking to build or upgrade their AR-15 lower receiver. This kit includes a Mil Spec SOPMOD Stock Kit, AR 15 Lower Parts Kit, and Mil Spec Buffer Tube Assembly, all made in the United States from top-quality materials. The 6-position 6061-T6 aluminum receiver extension, 3 oz buffer, castle nut, end plate, and carbine spring ensure smooth, consistent operation of your rifle’s recoil system. Whether you’re a seasoned gun builder or a first-time DIYer, the SOPMOD AR 15 Lower Build Kit has everything you need to construct or upgrade your AR 15 lower receiver. Upgrade your AR-15 build with the SOPMOD AR-15 Lower Build Kit from Black Rifle Depot.
Includes
- Mil spec SOPMOD Stock Kit
- AR 15 Lower Parts Kit
- Mil Spec Buffer Tube assembly
- 6-position 6061-T6 Aluminum Receiver Extension
- 3 oz Buffer
- Castle Nut & End Plate
- Carbine Spring



