The SJ M4 CQB BlowBack Gel Blaster V2 version is a must-have for gel blasting enthusiasts. It has mag prims, working bolt catch, bolt release and blowback. It is upgraded with metal parts like inner barrel, charging handle, fire switch, dust cover, gears and piston ladder.  SJ M4 CQB Gel Blaster Features: A special powder coating finish gives the nylon body the metal look. Laser engraving on the receiver perfectly replicating the original AR. Last round hold open. Fully functional metal cocking handle working as mag prime. Working bolt catch, bolt release, and blowback feature at this friendly price range. SLR and LDT HK416 magazine compatible. Upgraded with metal parts like inner barrel, charging handle, fire switch, dust cover, gears, mag release, trigger guard, piston ladder.  Specifications: Brand: si jun.Fire modes: Safe /Semi / Full Auto.Shell Construction: Nylon.Gears material: metal.Inner barrel size: 7.4mm. Inner barrel length: 31cm. Gearbox Type: V2 Gearbox. Spring Size: 1.2 Spring. Motor: Standard 480 Long Shaft Motor.Ammo Type: 7-8mm gel balls.Battery type: tamiya plug 11.1 volt. Flash Hider: Nylon 14mm Orange Flash Hider.Stock: Nylon Navy Style Stock.Size: 70*27cm.Weight: 1.9kg. Performance:  Velocity: 260-270 FPS.Shooting range: 20m.Rate of fire: 12-15RPS. Packing Includes:  1x SJ M4 cqb V2 gel blaster.1x black muzzle. 1x Magazine. 2x Handguard covers. 1x 11.1V rechargeable tamiya plug lipo battery. 1x USB charger. 1x pack of gel balls. SJ M4 V2 Gel Blaster Test Videos: