UTG Pro AR15 Ops Ready S1 Mil-spec Stock Only Black. These AR15 Stocks by UTG Pro are crafted to provide the most secure fit and silent operation featuring an integrated ambidextrous sling loop a rubberized butt pad and a slanted cheek rest for enhanced shooting stability and control for a right or left handed shooter. The extended 8in length of the UTG Pro Model 4 Ambidextrous Stock allows for superior firearm handling and is molded from impact resistant high strength polymer. You're expected to perform at your best so make sure your rifle works for you choose the UTG Pro Model 4 Polymer Stock. Specifications for UTG Pro AR15 Ops Ready S1 Mil-spec Stock: Manufacturer: UTG Pro Gun Model: AR-15 Gun Type: Rifle Condition: New Hand: Ambidextrous Buffer Tube Size: Mil-Spec Fabric/Material: High-strength Polymer Country of Origin: USA Features of UTG Pro Model 4 Dual Storage Stock LP-BSC-RBUS1BMS: Built for heavy-duty operations with tightest tolerance control providing the most secure fit and silent operation Mil-spec stock molded from impact resistant high-strength polymer in black Built-in rubberized butt pad chamfered front and rear edges and slanted cheek rest surface further enhances shooting stability and consistent firearm control Dual storage compartments with removable waterproof caps provide dry storage for batteries (up to 8 CR123) and/or other essential accessories Integral ambidextrous sling loop and QD sling swivel housing for left or right handed shooters Extended 8in length for increased length of pull - combine with super slim handguards for superior firearm handling Package Contents: UTG Pro AR15 Ops Ready S1 Mil-spec Stock What firearm models does the manufacturer say UTG Pro AR15 Ops Ready S1 Mil-spec Stock is compatible with? The manufacturer says that UTG Pro AR15 Ops Ready S1 Mil-spec Stock is compatible with AR-15UTG Pro RBUS1BMS: UTG PRO Model 4 Combat Ops S1 Mil-Spec Butt Stock Black