Airsoft Surgeon Air Seal hop up chamber for Marui GBB and VSR Bolt set French FAMAS & Austrian Steyr

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Airsoft Surgeon Air Seal hop up chamber for Marui GBB and VSR Bolt set French FAMAS & Austrian SteyrHop up, (High Operation Power Up), is the back spin trajectory of an BB pellets. By adjusting the Hop Up, you can increase their range and accuracy of your GBB and VSR 10. As the pellet makes its way through the hop up bucking, the friction creates a back spin, allowing the BB to go on a straighter trajectory. Airsoft Surgeon has released this "concave" shape bucking which will provide the most effective hop up. Using heavier BBs and adjusting the hop