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Allen Engineering AEM-5 "Ops Inc" MK12 SPR Collar & Adapter

Allen Engineering

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Perfect replacement for Ops Inc. #12, fits AEM-5.  This is for the MK12 clone build.

Works great with Our Signature Series MK12 MOD 0, and our MK12 MOD CP barrels, along with any MK12 Barrel we produce. 

Included is the complete kit:  Collar, flash hider, thread protector and shim kit.