Colt AR-15 "SP1", .223 cal. semi-auto rifle. Serial #SP191756 mfg. 1982.  Excellent condition.  A late "SP1" carbine.  16’ "Chrome" marked skinny barrel. Excellent bore. Matte gray finish is 99%. Two postion collapsible aluminum stock. A1 birdcage flash-suppressor. Bayonet lug. No forward assist. Solid carry handle. Includes four 20-rd. magazines - two Mag-Pul and two Thermold with coupler. Also includes the Green Colt factory manual. Super condition! Very light and handy.