Vector Optics Steel Micro 0.75" Standard Gas Block for Airsoft GBB

- Only install onto 0.75 inch regular barrel and standard gas tube
- Diameter: 19mm (0.75 inch)
- Length: 25.4mm (1.0 inch)
- Overall height: 37.5mm (1.5 inch)
- Weight (net): 43g (1.5 ounce)
- Use supplied hex hey to fasten and release onto the barrel
- High quality aluminum alloy in durable black matte finish
- Shock proof design
- With proper hex key and pin