Posted October 21, 2016 3:11 am by Comments

By Nathan S.

Capture

JP Enterprises, known for the LMOS (Low Mass Operating System) and SCS (Silent Capture Spring) has announced the fusion of the two systems into the VMOS (Variable Mass Operating System). In short, the VMOS is a bolt-carrier group that combines the basic shape of the LMOS with the adjustable weight system of the LMOS on […]

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Source:: The Firearm Blog

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