Cold weather resistant

WellFire is well known for making high quality

X-Shaped Thermal Plastic Urethane (TPU) Shell

Extended battery compartment accepts larger batteries

Quick Release Gear box for individual Spring Change

Zion Arms R&D Precision Licensed PW9 Mod 0 Airsoft Rifle (Color: Tan) positive thread Cold weather resistantSpecifications Brand: Zion Arms R&D Precision Operation: Electric Automatic Firing Modes: Semi Automatic, Full Automatic, Safe (Programmable Burst Mode Features) Product Construction: CNC Aluminum Upper and Lower Polymer Grip Muzzle Velocity: 380 400 FPS with 0. 20g BBs Gearbox: Full Metal Version 2 Motor: 25k RPM Neodymium Magnet High Speed Motor Hop Up: Yes, Adjustable Rotary Style Gear Ratio: 18: 1 Steel Gears Bearings: 8mm Inner Barrel Bore: 6.