ERGO POP Bottle Vertical Forward Grip - Black Tactical Gear this is the kit you

this is the kit you need to upgrade your valve to the A1 Fly

Eportal 3 Compatible

Muzzle Velocity: 300~350 FPS (Measured w/ 0

Diameter: 21 cm

Wrap around elastic customizes to the body’s core and lower back for unsurpassed comfort and fit

ERGO POP Bottle Vertical Forward Grip - Black Tactical Gear this is the kit youExtremely rugged polymer vertical forward grip. Slides onto rail systems from the ends. Features: High strength polymer Vertical Forward Grip (VFG), extremely durable and tough Slide rail mount to Picatinny rails with cross bolt section Mounts to all our rail systems including shotguns that have picatinny rails.