- Adjustable Blowback part for turning original Blowback to Light Low Blowback
- Multiple cut-outs to reduce weight
- CNC 7075 Aluminum Construction
- Increase operating speed and improve efficiency
- Suitable for Marui 5.1/4.3/1911 Series Airsoft Gas Blow Black GBB Pistol
- As always, upgrading GBB require necessary skill & technique, consult expertise if needed
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