Brownells Brownells Brownells 75th Anniversary - A Shooting Heritage


  • Six position AR15/M16/M4 receiver extension assembly
  • Includes Mil-Spec receiver extension/buffer tube, receiver lock plate, lock-nut/castle nut, carbine buffer and carbine buffer spring
  • Buffer tube is Mil-Spec diameter and 6061 aluminum
  • Carbine buffer weight is 3 oz
  • Buffer spring is 17-7 stainless steel

AR-15, Issue:10, Page:037
Brownells Christmas , Issue:4X, Page:021
Big Book Catalog, Issue:67, Page:037

Fits standard AR15/M16 lower receivers. Mil-spec diameter. Includes buffer tube, lock plate, castle nut, buffer and buffer spring.

BROWNELLS - AR-15/M16/M4 Receiver Extension Assembly