Action Army Hop-Up chamber for VSR-10 replicas

Action Army Hop-Up Chamber for VSR-10 

Made from durable CNC duralumin, the reinforced Hop-Up chamber for the VSR-10 and other Marui standard-compliant sniper airsoft rifles.
The chamber has improved, compared to stock components, leak tightness and more precise adjustment of the hop-up system, which combined together translates into higher performance of the replica.
The chamber is compatible with hop-up buckings and VSR-10 standard barrels