Magazine Capacity: 300 Round High-Cap

Full metal Version 2 gearbox has a quick change spring system that allows for quick and easy spring changes to easily adjust FPS to meet any field requirements

Strong electric winding motor is powered by a single 9V battery

25" bottom (20mm) picatinny rails for suitable and easy mounting of any optic/scope/bipod/accessories

Includes 90R Auto-Drop Advance Magazine (ADAM)

Nine Ball 6.03mm Tight Bore for SIG Sauer M17 P320 GBB (105mm) tokyo marui Magazine Capacity: 300 Round High-CapThe Nine Ball Power Barrel is a high quality and extremely precise 6. 00mm inner barrel for the SIG Air M17 gas pistol. This will increase the accuracy of your M17 significantly 105 mm Length 6. 03 mm Diameter Designed for the SIG AIR M17 GBB Pistol