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Our 4th generation Hi-Capa M4 adapter is injection molded from a strong glass reinforced nylon material. The magazine release is now CNC machined aluminum for all Gen4 Primary Airsoft adapters. This adapter allows you to use HPA (high pressure air) and M4 AEG magazines on your Hi-Capa airsoft pistol. To use it you w

Save on Hi-Capa HPA/M4 adapter with a Primary Airsoft promo code

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