Product description
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The best hop-up housing on the market?
Extremely well-made housing from CNC-milled aluminum. Exact tolerances and a series of innovative solutions give the housing superior function.
Equipped with BB latching system so that BBs do not fall out when you change magazines.
Made for optimal sealing and hop-up. Fits most M4/M16 guns with Tokyo Marui design V2 gearbox, including Krytac and G&G (but not KWA or ICS).
Rotary design which provides by far the most precise adjustment of the hop-up, entire The hop-up system is also specially made to fit with different nubs and rubbers such as R-hop.
Fits together with nozzle 21.00-21.25 mm.
What is included:
1 x CNC Aluminum Hopup Chamber M4A Pro (with BB Latching System) unit
2 x CNC Acrylic Side Cover
2 x CNC Brass 2.5mm Side Wing
1 x CNC Steel Pivot Pin
1 x CNC Aluminum Hopup Lever
1 x CNC Aluminum Soft Round Nub
1 x CNC Aluminum Soft Flat Nub (4mm)
1 x CNC Aluminum Hard Concave Nub (4mm)
3 x Steel Nub Spring
1 x CNC Steel Spring Guide
1 x Steel Upper Compression Spring
1 x Steel Center Compression Spring
1 x CNC Delrin Locking C-Clip
1 x CNC Brass Barrel Spacer
1 x Brass Barrel Spacer Holder Oring
1 x CNC Aluminum Rotary Dial Knob
1 x CNC Aluminum Inlet Adapter (OD11mm)
1 x CNC Brass Inlet Spacer
Length: 51.65mm
Height: 37.75mm
Inlet Adapter Outer Diameter (to fit into Gear Box): 11mm
Hub Outer Diameter (to fit into Outer Barrel): 12mm
Hub Inner Diameter (to fit Nozzle): 8mm
Feeder Outer Diameter (to fit magazine): 8 .85mm
Feeder Length (to fit magazine): 6mm
Material: Aluminum 6061
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