A&K MK43 AEG Hop up Set

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

Also, fit tightly to the barrel base to keep the chamber being centered

Unlike plastic chamber which would bend & de-shape, this metal one give you rigidity

Highly recommend for upgraded Airsoft Electric Gun to withstand higher air pressure

Includes all parts needed for installation

Come With Hop up Rubber

Require expert on installing into stock AEG