Fostech Tomahawk AR-15 Stock 6 Position Collapsible Black. The Fostech Tomahawk AR-15 Stock from FosTecH is the latest innovation from FosTecH. Reinforced polymer structure with an over-molded (rubberized) exterior. Multi texture rubber and grooves provide the Tomahawk with a surface that is effective in minimizing slip. Specifications for Fostech Tomahawk AR-15 Stock: Manufacturer: Fostech Color: Black Gun Model: AR-15 Gun Type: Rifle Condition: New Buffer Tube Size: Mil-Spec Features of Fostech Tomahawk AR-15 Stock Lightweight Package Contents: Fostech Tomahawk AR-15 Stock What firearm models does the manufacturer say Fostech Tomahawk AR-15 Stock is compatible with? The manufacturer says that Fostech Tomahawk AR-15 Stock is compatible with AR-15Fostech 2512: Tomahawk AR-15 Stock 6 Position Collapsible Black