B5 Systems CAR-15 Mil-Spec Carbine Stock Black - AR-Platform

Give your retro AR-build the proper vintage profile with the B5 Systems CAR-15 Stock. Molded from modern polymer in a black finish, this fixed carbine-style buttstock captures the classic carbine silhouette while delivering the durability and consistency of contemporary materials. It is purpose-built for retro AR builds and any AR-platform rifle running a standard receiver extension.

Engineered to fit all standard Mil-Spec size receiver extensions, the CAR-15 locks up tight to eliminate wobble and pinching, giving a snug, rattle-free fit on your carbine buffer tube. The stock ships as the buttstock body only - tube not included - so it is a direct drop-on upgrade for any rifle already equipped with a Mil-Spec carbine extension. No additional hardware is required for installation.

At just 4.2 oz, the CAR-15 keeps your rifle light and well-balanced. Overall footprint measures approximately 6.21 in long by 1.75 in wide by 4.35 in tall. The molded synthetic construction shrugs off weather, hard use, and field abuse, while the classic carbine lines deliver the period-correct look that retro builders and clone enthusiasts are after.