Hop-Up Chamber for M4

Retro Arms chambers has parts made at CNC machining center out of EN AW 2007 and EN AW 7075 aluminum. Regulation wheel is from polypropylen. Impression regulation is very effective, because lever does not bend thanks to the used material. Its design allows precise Adjustment in 2mm range with step of 0.01mm.

41,05 € tax incl.

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: RetroArms

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Hop-Up chamber for M4 type.

Retro Arms chambers has parts made at CNC machining center out of EN AW 2007 and EN AW 7075 aluminum.Regulation wheel is from polypropylen . Impression regulation is very effective, because lever does not bend thanks to the used material. Its design allows precise Adjustment in 2mm range with step of 0.01mm.

Chamber is 100% compatible with the Retro ARMS gearbox, but it also fits into standard zinc gearboxes. However be aware that we can't guarantee absolute and precise fitment.

Hop-Up chamber is equiped with o-ring against BBs falling out.

Hop-Up nub is integrated into press lever. This way it won't fall out during assebly/diassembly. Optional press levers can be bought for experimental settings.

C clip isn't included. You can use former one, or order Retro ARMS's indestructible C clip.

Chamber's surface is anodized in black and red color.