AIP 120% Enhanced Recoil / Hammer Spring for Hi-capa 5.1 / 4.3 #AIP032Best use in Conjunction with Metal Slide Outer Barrel + High Flow Blowoff Valve Recoil Spring produces stronger & faster blowback feel Hammer Spring increase the hammer tension resulting higher gas output, i. e. more power fps Suitable for Marui Hi Capa 5. 1 4. 3 Series Airsoft Gas Blow Black GBB Pistol As always, upgrading GBB require necessary skill & technique, consult expertise if needed Major Color : Black Built Material : Metal

Field Strip mechanism is the same as the real steel

- Official Licensed by Umarex

achieving 290 FPS of muzzle velocity (Power)

Increase the durability of your pistol

- ABS / Aluminum

Remove the Original safety parts and change this tag will solve this problem

: M1911-12

- CNC Aluminum Special Dummy magazine shell

Material: 70° Hardness Silicone Made

- Metal constructed safety lever and safety pin plastic lower

- Reduce Slide Resistance

- Ace1arms Aluminum Trigger set & Nebula Serial plates Installed