CMMG AR-15 Carbine Receiver Extension Kit

Finish off your lower receiver build with the CMMGA(R) AR-15 Carbine Receiver Extension Kit. Featuring durable aluminum construction with a hard coat anodized corrosion-resistant finish, this mil-spec buffer tube kit features a mil-spec diameter so it can fit your favorite mil-spec stock or brace of your choice. Even better, this kit includes a receiver end plate, castle nut, action spring, and buffer so you have everything you need to finish that lower receiver build you've had sitting in your closet. Don't hesitate and order yours today! Made in USA.