- CNC Metal construction- Suitable for M4 Series airsoft gearbox- Dual O-ring for better air sealing- Replace the original partManufacturer : EAIMING
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Write Review by NicholasRating: [5 of 5 Stars]Date Added: Friday 22 May, 2020Worth the money Double o ring really help with the air sealDisplaying 1 to 1 (of 1 reviews)Result Pages: 1