The prs gen3 is a field precision stock for ar15/m16 and ar10/sr25 platforms, featuring tool-less length of pull and cheek piece height adjustment.With solid adjustments for length of pull and cheek piece height via aluminum detent knobs, the prs gen3 (precision rifle/sniper) stock provides a stable interface and is intended for semi-automatic sniper or varmint type rifles.Offering a nearly universal fit, it is optimized for rifle-length receiver extensions but will also mount to many mil-spec carbine and a5-length tubes*.Includes a cant/height-adjustable rubber butt-pad and rotation-limiting qd sling swivel cups as well as m-lok slots on the bottom for rear monopod mounting.Firearm Type: AR-15/M16/M4/SR25/M110/AR-10Firearm Model: AR15/M16/M4Material: Polymer/AluminumFinish: BlackFeatures: Tool-Less Comb Height & LOP AdjustmentAdjustment Type: Length of Pull/CheekrestPositions: FixedLength Of Pull: 14.30"-15.70"Tube Included: Yes