Sig-Sauer 556 Dedicated Marksman Rifle (DMR), 5.56mm/.223 cal. semi-auto match rifle. Serial #JT016754. Excellent condition. The outstanding match version of the Sig 556 with 21" heavy match barrel, single stage target trigger, quad Picatinny rail, bi-pod and the excellent MagPul PRS adjustable rear fixed tactical stock. Wow! These babies reach way, way out there and touch 'em! Excellent bore. Low round count. Long top rail over receiver top allows for any optics choice. 98%+++ matte black nitrate military type finish. Harris swivel low bi-pod mounted. Piston operated - adjustable gas block. Amb. safety. 1/10 twist rate. Takes all AR-15, M16 mags. Includes two 30-rd. plastic P-Mags with coupler, factory black hard case, instructions and factory manual. A heavy and substantial 556! Very accurate! Gunrunner West item.