![Hop-up chamber for M4/M16 type replicas Hop-up chamber for M4/M16 type replicas](https://air.viruisis.lt/14266-large_default/hop-up-chamber-for-m4m16-type-replicas.jpg)
Hop-up chamber for M4/M16 type replicas
A tight metal hop-up chamber meant to mount in M4/M16 replicas. The set includes a hop-up bucking adjustment, and all the other pieces essential in mounting.
Note - set does not include the HU bucking!
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