EMG F-1 Firearms Licensed BSF-19 Optics Ready Gas Blowback Airsoft Pistol Military & Government Airsoft Training Guns Be sure to clean the

Be sure to clean the area you've dremeled/filed  and remove any metal shavings before continuing the installation

3mm inner diameter x 10

This thing is awesome

75mm Hub Outer Diameter (to fit into Gear Box): 11mm  Hub Outer Diameter (to fit into Outer Barrel): 12mm Hub Inner Diameter (to fit Nozzle): max 8mm Feeder Outer Diameter (to fit magazine): 8

EMG F-1 Firearms Licensed BSF-19 Optics Ready Gas Blowback Airsoft Pistol Military & Government Airsoft Training Guns Be sure to clean theDESCRIPTION: High quality replica fully licensed by F 1 Firearms Unlike similar pistols, the BSF 19 features both a metal slide AND frame! Deep engraved trademarks Specially designed slide cuts to reduce weight and assist with operation Spiral cut outer barrel offers lighter weight and a distinct look Optics ready design to accept RMR footprint red dot sights Extended style magazine makes reloads quick and easy Frame mounted rail allows for the