Techt G4/G3 Spec-R L7 Bolt Engine Angel Threaded Barrels Simply tap the power button

Simply tap the power button and cycle through the options (Drill Modes

Completely rebuildable by the end user

10 - #20 BN70 O-ring

precision machined internal hammer & bolt system and hand-finished with excellent attention to detail

Techt G4/G3 Spec-R L7 Bolt Engine Angel Threaded Barrels Simply tap the power buttonThe TechT G3 Spec R G4 L7 Bolt Engine totally reconfigures the Stock G3 Spec R G4's method of operation. By replacing the stock style bolt with the proven L7 style bolt head, performance is increased on every level. Lower operating pressure, shorter dwells, better consistency, better efficiency, lower sound signature the works. It is constructed of high grade aircraft aluminum and goes through our licensed anodizing method to make them both durable