ICS M4 Upgraded Upper Gearbox MA-56

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Availability: Out of Stock

Product Code:AC-UPI-MA120K

Manufacturer:ICS (I Chih Shivan)


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

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Manufacturers ICS (I Chih Shivan)
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