The Tokyo Marui MP7A1 GBB delivers exceptional recoil response, but energetic stock deployment and heavy sling tension place severe shear stress on the factory receiver pins. The Pro Arms Stainless Steel Stock Pin replaces the softer OEM retention pin with high-tensile, corrosion-resistant steel to prevent stock assembly play, lateral wobble, and structural failure during high-intensity field maneuvers. Precision CNC-machined to 1:1 factory tolerances for a direct drop-in fit, it features a hard-wearing black surface treatment that matches the original Marui receiver aesthetics. High-cadence cycling and rapid shoulder transitions inevitably expose standard cast-alloy components to metal fatigue, making this upgrade a simple, reliable way to reinforce your primary against on-field hardware failure under heavy sling-load tension.
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Compatibility:
- Tokyo Marui MP7 GBB Airsoft SMG Series (Standard & Navy)
Includes:
- Pro Arms Tokyo Marui MP7 GBB Stainless Steel Stock Pin
