Pre-Order Nowbr view larger Urban maneuvers require the flexibility of the MCSR01: folding stock for close combat, flip-up sights and a quad rail mounting system makes this an ideal all-around rifle. Spring-powered, adjustable hop-up, the magazine holds 350 BBs and can fire up to 325 fps. Specifications Velocity: Up to 325 fps Weight: 2 lbs Length: 28.