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Gun Beaver - Piston vs. Direct Impingement (DI) AR-15

Piston vs. Direct Impingement (DI) AR-15: Makin...

When it comes to the AR-15 platform, one of the most significant decisions you’ll face as an enthusiast or potential buyer is choosing between two primary operating systems: piston and...

Piston vs. Direct Impingement (DI) AR-15: Makin...

When it comes to the AR-15 platform, one of the most significant decisions you’ll face as an enthusiast or potential buyer is choosing between two primary operating systems: piston and...