Strike SIVIPERESMOD Viper AR-15/M16/M4 Buttstock Black Strike Industries drop-in replacement buttstock for your AR/15/M16 carbine uses mil-spec sized receiver extension tubes. The Viper stock integrates features sought by military professionals and firearms enthusiasts around the world. Type: Buttstock Firearm Type: AR-15/M16/M4 Firearm Model: AR-15 Material: Glass Reinforced Polymer Finish: Black Length of Pull: 9.25"-12"
