Uses 2 CR123A Lithium Type Battery (Included)

and Mil-Std 1913 rails via aluminum side clamp and bolt

Quick Focus Eyepiece

Brushless DC motors have no brushes to get worn out

Umarex / BCM Air and other VFC spec Gear boxes

MECHBOX PRO CNC Aluminum Cylinder Head PDI Uses 2 CR123A Lithium TypeFeatures: Precision CNC Aluminum Construction Double O Ring for better air seal and reduced compression loss Polished stem for smooth cycling with nozzle while maintaining best air seal Built In rubber bumper for shock absorption from piston piston head Squared stem angle to ensure best air seal with air nozzle Compatibility: Most Gen 2 AEG Gearboxes Material: 6061T6 Aluminum Alloy