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Review: JP Enterprises 9mm Carbines

Two USPSA shooters put a pair of JP's popular GMR-15 PCC models through their paces.

AR-15 Architecture: The Key To Function

Excessive gas pressure is a no-no with an AR-15. Safeguard the reliable function of your...

All About AR-15 Adjustable Gas Blocks

These accessory appliances are popular, widely available, and often recommended to tame an AR-15 gas...