NINE BALL - Green Gas Injection Valve for GBB Pistols and Rifle Magazines HK Army speed feed Hop-Up / Style: Yes/Adjustable rotary

Hop-Up / Style: Yes/Adjustable rotary

Package Includes: x1 Prometheus Hard Piston

The scope is an illuminate reticle to all the user to quickly acquire argets even in low light conditions

Lightweight yet solid polymer construction

Gearbox Type: Proprietary EVO3 A1

NINE BALL - Green Gas Injection Valve for GBB Pistols and Rifle Magazines HK Army speed feed Hop-Up / Style: Yes/Adjustable rotaryFeatures: Replace your original Airsoft GBB Magazine fill valves (5mm Diameter) Hides that ugly brass from the bottom of your magazines Pack of 3 Manufacturer: Nine Ball Specifications: N A Dimensions: 128mm L x 23mm D Weight: 1 oz Thread Pitch: N A Compatibility: Tokyo Marui KSC Marushin Maruzen Airsoft GBB Pistols Material: Steel Package Includes: 3 NINE BALL Green Gas Injection Valves