The Luth-AR Stock Kits from Brownells combine your choice of the modular or skeleton buttstocks with all necessary hardware to mount to your lower receiver. In addition to the stock this kit includes the buttstock extension tube, rifle buffer spring, and a standard buffer body assembly.
The Luth-AR Buttsock Assemblies fit all AR-15 rifles. These stocks easily replace existing A2 or A1 stock assemblies, and attach to a rifle length buffer extension tube. The MBA-1 (Modular Buttstock Assembly) is fully adjustable for length of pull via its butt plate. Cheek rest allows for an extra 1" of height and the rear allows for 1-1/16" of length of pull adjustment. Total weight of the MBA is 1.26 lbs, while the Skeleton Stock weighs in at 0.7 lbs. Both stocks are constructed from glass filled nylon, for superior durability. Overall length for each stock is 10-3/8" and the MBA can extend out to 11.5".
Sold Separately: Uncle Mike's QD Sockets can be epoxied into socket on the side of each stock, use part# 593-000-038.