AR15 M4 .223 5.56 Commercial Spec Buffer Spring by COI. $8.95. AR15/M4 .223/5.56mm Carbine Mil-spec Buffer Spring ?Product Details: ?Length: 13.5 inch ?Compatibility:.223/5.56mm Commercial-Spec Buffer Tube (8.75 inch tube) ?COLOR: metal ?NET WEIGHT (OZ): 2.3 oz
AR-15/M-16 Kit - Finger Groove Beavertail Grip, Rifle Length Forend with Accessories and OverMolded Collapsible Buttstock - Includes Mil-Spec Buffer Tube and Hardware - Purple | Hogue Inc.
Heavy Buffer Weight, Solid Tungsten for Mil-spec & Car Stock http://fishingrodsreelsandgear.com/product/heavy-buffer-weight-solid-tungsten-for-mil-spec-car-stock/ 99.5% Pure Tungsten 3 X Heavier / Denser than steel Direct Replacement for steel weights
Collapsible PDW Stock This is a 2-position collapsible stock for an AR-15 rifle. Works with your existing Mil-Spec Bolt Carrier allowing use with both gas impingement and gas piston systems. Requires only one-handed operation and will lock in both the closed and extended positions. Supplied with Springs , H1 buffer. Product Weight: 30oz