Our AR-15 6 Position Buffer Tube Kit contains all the components needed to securely mount the buttstock of your choice using top quality original factory parts. Eliminates the hassle of tracking down every part and accidentally getting incorrect ones for your stock. Have everything you need to finish your build, so you won’t be held up waiting for that one part you forgot to order. Each kit contains original factory parts; parts from one manufacturer will fit another manufacturer’s receiver but may require minor fitting. Select the AR 15 buttstock you want (available separately), then purchase the mounting kit for that type of stock. Mil-Spec Carbine kit is for adjustable-length carbine buttstock. Includes receiver extension tube, carbine recoil buffer, buffer spring, receiver plate, and lock nut.
- 6 Position Mil-Spec Diameter Carbine Receiver Extension (8″ buffer tube)
- Mil-Spec Receiver End Plate
- Castle Nut/Receiver Nut
- 4.6 oz. Carbine Buffer
- Heavy Duty Carbine Buffer Spring