Techt G4/G3 Spec-R L7 Bolt Engine Airsoft Gun Parts & Upgrades The TechT MRT Phenom Bolt

The TechT MRT Phenom Bolt utilizes the stock spring

The QEPH was designed to remedy this problem

The marker comes standard with many extra features which normally are available as optional add-ons: BT Rip-Clip

The Virtue Ion board easily installs in minutes

Dye’s trademark muzzle break design is quiet

Techt G4/G3 Spec-R L7 Bolt Engine Airsoft Gun Parts & Upgrades The TechT MRT Phenom BoltThe 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