Blackhawk - Adj Ar/m4 Buttstock . Blackhawk Buttstocks are incredibly easy to install and the lockdown feature makes this buttstock one of the most secure attachments on the market. Maximize buttstock performance with the Paddle Lock system that provides both a fully adjustable stock and the ability to install in the locked position. For those who need some additional mounting space the locking block feature of this BlackHawk Carbine Buttstock offers an extra mounting area for slings and other gun accessories. Plus the sling slots built into the buttstock make it easy to attach a sling to the stock. Enhance your shooting game by using this Blackhawk Carbine Buttstock on your favorite firearm. Specifications for BlackHawk Blackhawk - Adj Ar/m4 Buttstock: Color: Olive Drab Dark Earth Model: Commercial MilSpec Package Contents: Blackhawk - Adj Ar/m4 Buttstock The BlackHawk Blackhawk - Adj Ar/m4 Buttstock is a quality addition to the Blackhawk Tactical lineup. For more great deals on AR15 Stocks by Blackhawk Tactical please browse our BlackHawk Gun Parts page. What firearm models does the manufacturer say Blackhawk - Adj Ar/m4 Buttstock is compatible with? The manufacturer suggests that Blackhawk - Adj Ar/m4 Buttstock is compatible with M4BlackHawk K11021-C: - Adj Ar/m4 Buttstock - K11021-C