All-in-one kit lets you quickly mount an M4-style receiver extension to accept the adjustable buttstock of your choice. Extruded aluminum buffer tube comes with carbine buffer, buffer spring, castle nut, and end plate sling adapter. Features six positions for stock length adjustment and unique "no bind" sling attachment that gives 180 degrees of motion. Mil Spec and Commercial models available.
AR-15, Issue:11, Page:042
Big Book Catalog, Issue:69, Page:041
Extruded 7075 T6 aluminum, matte black finish. Incudes carbine buffer, spring, castle nut, and sling plate adapter. Mil-Spec- 7 1/4" (18cm) long. 1.14" (2.8cm) O.D. Commercial-7 3/4" (19cm) long. 1.17" (2.9cm) O.D.