Description
The AEM5/OCM5 PTB (PTB the barrel) adapter is made for the OCM5, AEM5, and Ops Inc. It’s made from H900 heat treated 17-4 stainless steel and allows the above silencers to mount on rifles with 5/8×24 or 1/2×28 threads.
It is also compatible with the AEM5-30.
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