FAB Defense AR-15/M4 Stock With Battery Storage And Rubber Buttpad Black. These AR15 Stocks from the innovators at FAB Defense feature an anti-rattle mechanism that fits perfectly on MIL-SPEC and commercial after-market buffer tubes. With three integrated slots for sling attachment the FAB Defense GLR 16 Butt Stock easily attaches to the front or the rear. Easily adjust your firearm with the FAB Defense Battery Storage And Rubber Buttpad Stock. Specifications for FAB Defense AR-15/M4 Stock With Battery Storage And Rubber Buttpad: Manufacturer: FAB Defense Gun Model: M4 AR-15 Gun Type: Rifle Weight: 0.597 lb 271 g Length: 180 mm 7.09 in Additional Features: w/Battery Storage And Rubber Buttpad Condition: New Height: 131 mm 5.16 in Width: 2.05 in 52 mm Features of FAB Defense AR-15/M4 Stock With Battery Storage And Rubber Buttpad: Uniquely designed rubber butt pad for fast and stable shoulder positioning Unique patented Anti-Rattle mechanism fits perfectly on Mil-Spec and commercial after-market buffer tubes Three Integrated Slots for Sling Attachment One in the Front and Two at the Rear Two Ambidextrous Metal Quick Release Rear Sling Mount Points Water-resistant anti rattle storage compartment for two CR123 or AA batteries Maintains Contour Size of Original Design Made from fiberglass reinforced polymer composite. Package Contents: FAB Defense AR-15/M4 Stock With Battery Storage And Rubber Buttpad 1S0-BSC-GLR16 What firearm models does the manufacturer say FAB Defense AR-15/M4 Stock With Battery Storage And Rubber Buttpad is compatible with? The manufacturer suggests that FAB Defense AR-15/M4 Stock With Battery Storage And Rubber Buttpad is compatible with AR-15 M4FAB Defense fx-glr16b: AR-15/M4 Stock With Battery Storage And Rubber Buttpad Black FX-GLR16B