M4 Compression Upgrade Kit

Availability: In Stock9
Brand: ZCI
Product Code: A001
Product viewed: 14308

Available Options

* Cylinder Type:

Custom upgrade compression kit using a combination of XT and ZCI components.  Parts are picked in order to provide the best compatibility and airseal.

PLEASE NOTE: Image may not reflect current availability.  Please see description below.

This kit provides the following upgrades:

- ZCI aluminium nozzle with single o-ring (21.4mm)
- XT aluminium cylinder head with padded bottom and double o-rings
- ZCI Stainless steel cylinder (72mm length, 23.7 inner diameter, 25.5 outer diameter) 
- XT 6 vent aluminium piston head
- XT 14 steel tooth piston (Blue)

Cylinder Size Guide

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