CNC Aluminum Hopup Chamber M4A Pro (with BB Latching System) unit is precisely machined to perform accurately and consistently on Tokyo Marui (include G&G, KRYTAC, except KWA) Standard M4/M16 AEG series rifles.
The Hopup Chamber M4A unit is built with an aluminum rotary dial knob for fine hopup adjustments, the precision hopup lever, and 4mm bucking nubs to perform best with R-Hop and standard-hop to keep the BB shooting accurately and consistently on every single shot. The Hopup Chamber M4A unit is designed to accept 21.00mm to 21.25mm nozzle length and is fully compatible with most aftermarket soft and hard rubber buckings without losing FPS or dropping BBs during use.
Features:
Machined from a solid aircraft aluminum block with tight tolerances to provide better accuracy, consistency, and durability
Precision rotary dial design for fine hopup adjustments
Re-engineered the hopup levers and nubs to work best with R-hop, Flat-Hop, and Standard-Hop to keep the BBs shooting straight and accurately on every single shot
Accepted the nozzle length from 21.00mm
Fully compatible with most aftermarket soft and hard rubber bucking without losing FPS or dropping BBs
Equipped with a new CNC Delrin Locking C-Clip design to hold the barrel tight without wobbling and twisting, 3 compression springs on top, at the bottom and in the center of housing to ensure the hopup unit is exactly centered, straight, and airtight
Compatible with any 11mm inner bore AEG Gearbox/HPA Engine nozzle outlets
Specially designed with BB Latching System to prevent dropping BBs after removing the magazine, Manually opened to release BBs from inside hopup chamber by hand
Specifications:
Hopup Kit Includes:
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 O-ring
1 x CNC Aluminum Rotary Dial Knob
1 x CNC Aluminum Inlet Adaptor (OD11mm)
1 x CNC Brass Inlet Spacer
Overall Length:51.65mm
Overall Height: 37.75mm
Inlet Adaptor 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\
Application: For most Tokyo Marui (include KRYTAC, except KWA) M4/M16 standard AEG version 2 gearbox
Material: Aluminum 6061
Test Results: *FPS might be increased from 10FPS to 30FPS over the stock setup. Please check your FPS! Disclaimer: Professional installation is highly recommended. Please use discretion when installing custom parts as fit and compatibility may vary. Modification may be required. Professional installation is recommended.
