Retro arms split gearbox Siegetek 10:1 gear Btc spectre Retro arms bearings Shs piston Zci cylinder Lonely piston head Vfc or lonex nozzle Zci 280 rhop barrel Asg 40k motor Lonex arl Tan hk 416 stock or mft utility stock ur choice Shots 70 rps @ 315 with a .28 Offer up Looking for tm recoil or p* mp7 or rare builds