CRBN ALU Upgrade Kit Color:Purple some are narrower than others

some are narrower than others

There is a good connection between sound reduction and ID of the exit hole

it is critical that the outerbarrel has all washers and o-rings removed

It is compatible with most hopup buckings

This improved version of the previous super popular TDC Shield is now completely CNC machined from high grade aluminium and anodized with a hard coating for extra protection during skirmish

CRBN ALU Upgrade Kit Color:Purple some are narrower than othersUpgraded Aluminium CNC parts for CRBN uppers by Airtac Customs. Replaces the original plastic parts found in the older series. Contains front sight and rear sight without fiber rods.