The Echo1 PSR Airsoft Sniper Rifle is impressive externally, internally, and performance-wise. The externals feature a full metal receiver, barrel, trigger housing, bolt lever, optic rail, and sling mounts while the frame is made out of high-grade impact resistant nylon polymer. Internally, the gun features pre-upgraded parts including a M150 high-strength spring, 420mm tightbore inner barrel, silent piston head, lightweight nylon-fiber piston, and one-piece PSR hop-up. The Mil-Spec optic rail fits any dovetail-mounted scope or red-dot sight. Included are two 46-round mid-cap magazines. The Echo1 PSR fills the niche for a high-performance yet cost effective airsoft sniper rifle that will be sure to impress on the field and even outperform other upgraded airsoft sniper rifles.