WE "Open Bolt System" Complete Conversion Kit for WE M4 Airsoft GBB RifleThe WE Open Bolt M4 Kit will allow you to convert your old AWSS M4 (Brass Bolt System) into the new realistic Open Bolt system. The kit includes a completely assembled Inner Barrel with Hopup Assembly (inner barrel, hopup bucking, hopup shell), a complete Bolt Assembly (bolt housing, nozzle assembly), Complete Trigger Group, magazine lip/seal conversion set (follower, mag seal, mag lip), and other small parts necessary for the conversion.
The Open Bolt system combines reliability, realism, and easy maintenance to create a new high standard for Quality Gas Blowback Rifles. These and many more WE parts are available at factory direct pricing only at ModernAirsoft.com.
Need to convert your old mags? Click here for the Open Bolt mag lip set.
Materials: Aluminum, High Impact Polymer, Steel
Package Includes: Inner Barrel w/ Hopup Assembly, Complete Bolt Assembly, Magazine Conversion Set, Trigger Group, Dust Cover, Bolt Catch, Pin Punch Tool
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