The CNC Aluminum Hop-Up Chamber M4W unit by MAXX Model is expertly machined for precise and consistent performance with HPA MTW Milspec, Forged, Billet, and MTW-9 series rifles.
This unit features an aluminum rotary dial knob for fine hop-up adjustments, a precision hop-up lever, and 4mm bucking nubs, optimized for R-Hop and Standard-Hop setups to ensure accurate and consistent BB shooting with every shot. It is designed to accept the HPA MTW Engine M4 nozzle length and is fully compatible with most aftermarket soft and hard rubber buckings, maintaining FPS without dropping BBs.
Equipped with an interchangeable inlet adaptor (OD 11mm), the hop-up unit fits securely in the center of the 11mm inner bore of the HPA engine nozzle outlet, eliminating wobble. Additionally, it includes removable CNC brass side wings for smooth installation into outer barrel slots, along with a CNC Delrin locking C-clip to keep the inner barrel securely in place, preventing wobbling and twisting.
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