The factory polymer and cast alloy components at the rear of the Tokyo Marui MP7 gas blowback platform are notorious failure points under the violent recoil of green gas and propane. To counter the internal stress caused by higher-pressure propellants, the Pro Arms Steel End Back Plate replaces the fragile factory polymer and cast alloy components at the rear of the Tokyo Marui MP7 GBB platform. Precision CNC-machined from heavy-duty steel with a durable anti-corrosion matte black finish, this component acts as a high-strength shield that absorbs repetitive bolt carrier impacts, effectively eliminating rear-receiver cracking and blowout risks under green gas or propane operation. Engineered as a direct drop-in replacement that fits seamlessly into the TM MP7A1 GBB series, this single steel backplate provides the structural rigidity necessary to keep your gas blowback submachine gun running reliably through demanding field use.
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