Umarex / VFC M5 Inject Valve V3 Original Parts for Gas Magazine Glock 17 , P320 M17 M18 , G3A3 , MP5A5 , SR25 , VFC STF/12 , HK45 etc. Firing Production Model : AIP020-51-S

Production Model : AIP020-51-S

which says a lot about the quality and performance of Nighthawk Custom 1911s

Size: 1" x 200mm

- Flash Hider Thread: 14mm Anti- Clockwise

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Umarex / VFC M5 Inject Valve V3 Original Parts for Gas Magazine Glock 17 , P320 M17 M18 , G3A3 , MP5A5 , SR25 , VFC STF/12 , HK45 etc. Firing Production Model : AIP020-51-SCompatible with most of all VFC GBB, gas pistol model gas magazine. Compatible with VFC Umarex M4 VR 16 SR 16 M733 BCM gas magazine. Compatible with VFC Umarex HK416 HK417 MP5 MP7 G36 UMP gas magazine. NOT compatible with VFC Umarex GLOCK 19 (G19) gas magazine.