SiJun SJ Metal Charging Handle Blowback Parts Type:metal dowel for SJ M4 MK18 - do not fill the

- do not fill the water above 80% of capacity

firing up to 260 FPS

the mag motor will run automatically for a period of time and it  can be programmed by 9th option

1x raptor dart blaster

Compatibility: ar m4/hk416 gel blasters with v2 receiver and airsoft rifles

SiJun SJ Metal Charging Handle Blowback Parts Type:metal dowel for SJ M4 MK18 - do not fill theSpecifications: These metal upgrade parts are compatible with sj series gel ball blasters like sj mk18, sj m4, or sj hk416d etc,. Brand: si jun. Material: metal. Color black. Package includes: 1x metal charging handle. or 1x metal blowback kit. or 1x metal dust cover. or 1x metal mag release. or 1x metal dowel.