Rifle buttstocks, stock kits, and complete receiver-extension assemblies for AR-15 and M4-pattern rifles — from clone-correct LMT SOPMOD Gen 1 and B5 SOPMOD stocks to VLTOR, Magpul, and Colt factory M4 stocks. This category includes fixed A1 and A2 rifle-length stocks for retro Colt and M16A1 builds, Vietnam-era CAR-15 telescoping stocks, and modern collapsible carbine stocks with the correct era and program hardware.
Stocks drive more of a rifle's handling character than most builders credit. A program-correct SOPMOD Block 1 build runs a Colt or LMT-produced SOPMOD stock on a Colt 4-position receiver extension; a Block II M4A1 runs a B5 or LMT SOPMOD Gen 2 on a 6-position extension; a retro 653 carbine runs the original Colt two-position aluminum slider. Getting the stock right is a sizeable step toward getting the clone right.
Every stock in this category is selected for spec correctness — pattern, material, finish, and era — rather than generic aftermarket trim. If a program-specific stock is not on the shelf, reach out. We keep sourcing notes on most of the harder-to-find variants and can often find one.