UAC - Hi-Capa Magazine Base Type A (Black) hard kick Large thumb dial on bottom

Large thumb dial on bottom allow you to wind it up

is basically describes the back spin trajectory of an BB pellets

Full Auto - Hop-up: Adjustable - Outter Barrel: steel  - Power Source: Gas (Green Gas / Top Gas) - Barrel Thread Type & Diameter: Counter Clockwise

- Lightweight

UAC - Hi-Capa Magazine Base Type A (Black) hard kick Large thumb dial on bottomSpecification: Material: Aluminium Alloy Description: The UAC Mag Base is the result of our study of all types of mag pad on the market and combined the requirement from our master shooters. It provided a larger surface for holding and allow more room for the magazine to fit into the mag housing while reloading. Checkered surface on the side gives you more friction for a firm grip. Numbers are engraving at the bottom of the pad for idenitifcation.