Techt G4/G3 Spec-R L7 Bolt Engine Factory Spare Parts Now you can shoot like

Now you can shoot like a pro on your way to becoming one

plated 5000 psi rated

Output: 10-32 female

Heavy-duty Velcro wrap closure with elastic

Techt G4/G3 Spec-R L7 Bolt Engine Factory Spare Parts Now you can shoot likeThe 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