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Product Description
ICS M4 Upgraded Upper Gear Box with M120 Spring
Includes: Upper Gear Box, M120 Spring, Metal Bearing Spring Guide Rod, Tappet Plate, Piston, Piston Head, Ported Cylinder, Cylinder Head, and Feed Nozzle.
Compatible with ICS M4 or M16
Upgrades FPS to 400
Includes: Upper Gear Box, M120 Spring, Metal Bearing Spring Guide Rod, Tappet Plate, Piston, Piston Head, Ported Cylinder, Cylinder Head, and Feed Nozzle.
Compatible with ICS M4 or M16
Upgrades FPS to 400
Additional Information
| SKU | MA-56 |
| Manufacturer | ICS (I Chih Shivan) |
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