https://www.redwolfairsoft.com/silverback-mdrx-16inch-barrel-gas-block.html
Silverback MDRX 16inch Barrel & Gas Block | RedWolf
silverbackmdrxbarrelgasblock
https://www.longbowbb.co.uk/da/product-page/mdrx-piston-16-teeth
MDRX Piston (16 teeth) | Longbow BB Retail
MDRX Piston (16 teeth)CNC aluminium construction, with hard anodizing coating. Hardened MIM steel 16 teeth rack (teeth #2 removed for sector gear engagement)....
mdrxpistonteethlongbowretail