The ArchangelA(R) Low-Profile AR-15A(R) Buttstock, 6 position M4 style adjustable buttstock designed to fit commercial size buffer tubes. Low-profile design is light weight and compact yet still facilitates fast weapon handling / accurate shooting. Features over molded quick detach sling swivel cup mounting points as well as slots for standard web slings. Constructed of legendary high strength, carbon fiber and glass reinforced black polymer. Lifetime Warranty. Made in USA. Low-Profile AR-15A(R) buttstock, 6 position M4 style Designed to fit commercial size buffer tubes Light weight and compact Over molded quick detach sling swivel cup mounting points Mfg: Pro Mag