The Brownells AR-15 Model 601/M16A1 buttstock assembly in black is built for shooters restoring early-model AR-15s and M16 variants to original military specification. This black buttstock replicates the iconic furniture issued to generations of American servicemen and women, making it the right choice for Model 602, XM16E1, M16A1, and later rifles. Whether you're building a retro-correct rifle, replacing worn-out original stock, or completing a clone build, this assembly delivers authentic profile and function without hunting down increasingly scarce original hardware.

Brownells designed this buttstock as a Type D configuration—meaning it features a rear sling swivel but no trap door compartment. That straightforward profile works across the widest range of early M16 and AR-15 platforms, so you don't have to guess whether it'll fit your receiver. The assembly ships with an A1-length buttstock screw and detailed instructions to get you mounted and ready to shoot. Note that you'll need to source your own buffer tube and other internal hardware to complete the installation.

Retro furniture from Brownells isn't a forensic duplicate of original components—manufacturing methods and counterfeit-prevention design mean some details differ from period-correct originals. That said, the profile and appearance nail the look and feel of a genuine early-AR fighting rifle, and the black finish is the proper color for rifles from the Model 602 generation forward. If you're chasing the green furniture look of early Model 601 Air Force rifles or the brown of late-1950s prototypes, Brownells offers those colors separately.

The Brownells AR-15 Model 601/M16A1 buttstock assembly in black is built for shooters restoring early-model AR-15s and M16 variants to original military specification. This black buttstock replicates the iconic furniture issued to generations of American servicemen and women, making it the right choice for Model 602, XM16E1, M16A1, and later rifles. Whether you're building a retro-correct rifle, replacing worn-out original stock, or completing a clone build, this assembly delivers authentic profile and function without hunting down increasingly scarce original hardware.

Brownells designed this buttstock as a Type D configuration—meaning it features a rear sling swivel but no trap door compartment. That straightforward profile works across the widest range of early M16 and AR-15 platforms, so you don't have to guess whether it'll fit your receiver. The assembly ships with an A1-length buttstock screw and detailed instructions to get you mounted and ready to shoot. Note that you'll need to source your own buffer tube and other internal hardware to complete the installation.

Retro furniture from Brownells isn't a forensic duplicate of original components—manufacturing methods and counterfeit-prevention design mean some details differ from period-correct originals. That said, the profile and appearance nail the look and feel of a genuine early-AR fighting rifle, and the black finish is the proper color for rifles from the Model 602 generation forward. If you're chasing the green furniture look of early Model 601 Air Force rifles or the brown of late-1950s prototypes, Brownells offers those colors separately.