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Product Preview: Survivor Systems Professional MCS Stock

Driven by a law enforcement agency’s request for an adjustable, but non-telescoping, AR stock, the Survivor Systems’ Professional MCS model offers length-of-pull changes by way of four included spacers.

Tested: Windham Weaponry RMCS-4 Multi-Caliber Rifle Kit

Windham Weaponry recently decided to take AR-15 modularity to the next level and to reduce the cost of converting a rifle to fire another cartridge with its Multi-Caliber System (MCS).

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