The Magpul MAG672-GRY, or PRS Gen 3, is an adaptable field precision stock crafted for AR15/M16 and AR10/SR25 weapon systems. Notable for its tool-free length of pull and cheek piece elevation modifications, its robust adjustments for both these features are accomplished through aluminium detent knobs.Designed specifically for semi-automatic sniper or varmint category firearms, the PRS Gen 3 (Precision Rifle/Sniper) stock delivers a dependable interface. While it\'s primarily optimized for rifle-length receiver extensions, it offers a virtually universal fit and can be mounted on a variety of mil-spec carbine and A5-length tubes*.Additional features include a cant/height-adjustable rubber butt-pad and rotation-restricting QD sling swivel cups. It also boasts M-LOK slots on the lower side for rear monopod mounting.