LaRue Tactical RAT Stock Black. The unique 2-stage trigger mechanism allows shooters to adjust the pull length of the stock while in a variety of shooting positions. The CNC-machined internals allow for smooth operation as trigger mechanism is pulled to the rear and released. The internals provide positive lockup on Mil-Spec receiver extension positions. The internal cavity is designed for a snug fit without the need for an additional locking mechanism. Ambidextrous 1/4 swivel sockets and 1 slots provide ideal anchor points for two-point slings. A locking rear butt-plate slides open to expose compartments that hold cleaning kit components. Specifications for LaRue Tactical RAT Stock: Manufacturer: LaRue Tactical Color: Black Gun Model: AR-15 Gun Type: Rifle Package Contents: LaRue Tactical RAT Stock What firearm models does the manufacturer say LaRue Tactical RAT Stock is compatible with? The manufacturer says that LaRue Tactical RAT Stock is compatible with AR-15LaRue Tactical LT800: RAT Stock Black