Hop-Up chamber Upgrade Parts.
This One-Piece Metal Chamber Set is more durable and accurate in feeding BB.
Improves Firmness of the chamber & stabilizes the muzzle velocity.
Enhanced Hop-Up bucking for accuracy.
Suitable for AK Series  airsoft electric gun AEG gearbox (Version 3).
Fit tightly to the barrel base to keep the chamber being centered.
Upgrading AEG require necessary skill & technique to dissemble the gearbox, consult expertise if needed.
Weight(Gram):26