This is a Sig Sauer AR known as the 716G2 chambered in 6.5 Creedmoor, model R716G2-H18B-65-DMR-FDE.
Right out-of-the box" the second generation SIG716 DMR features an improved gas system" lightweight handguard" and an overall weight reduction of more than two pounds. The two-stage match trigger and muzzle brake help shrink groups to less than a single minute-of-angle" accuracy simply thought impossible from a gas piston. This two-position adjustable gas system keeps carbon" excessive heat and other fouling out of the chamber" enhancing reliability and accuracy.
Features:
2-Stage Match Trigger
Semi-Auto
Gas Piston