Maple Leaf GBB HopUp Chamber Unit for VFC Glock Gen. 5 ace1arms and many other HP products

and many other HP products for various industries

Polymer material

lightening cuts in the full metal slide

Muzzle Velocity: 390-410fps with 0

The Umarex (Elite Force) HK53 gas airsoft rifle is a faithful replica of the German Cold War classic

Maple Leaf GBB HopUp Chamber Unit for VFC Glock Gen. 5 ace1arms and many other HP productsFor (VFC) G series Pistol Series Hop wheel + Vertical tensioner design to decrease the original parts tolerance Vertical tensioner with curve shape design for good setting of BBs Stable Hop effect and better air seal Suitable with Maple Leaf GBB VSR Hop rubber and pistol inner barrel or "Crazy Jet" inner barrel Additional Vertical tensioner for backup or user can modify it by youself.