Composite Sporter Stock Black/Gray Webbing 4 Round Mesa Christensen Arms 416 stainless steel billet receiver with enlarged ejection port; match-grade trigger (2.5-3.5 pound); billet aluminum machined bottom metal with hinged floor plate; internal magazine. Free-floating, featherweight contour barrel is crafted from 416R stainless steel with a Tungsten Cerakote finish. Threaded muzzle with removable stainless steel Radial brake; includes thread protector. Carbon fiber composite Sporter stock with LimbSaver recoil pad; black with gray webbing. Invar pillars; Spot bedding. Twin lug, spiral fluted bolt with nitride treatment; skeletonized bolt knob. M16 style extractor. Made in the USA.