This review details the H&K G39, the German military designation for the HK437 chambered in .300 Blackout, specifically configured for German Special Forces. The rifle features a 9-inch barrel, a weight-reduced handguard, an A-TEC suppressor with 45-degree offset sights, and fully ambidextrous controls. Its short-stroke piston system allows for a folding stock, making it exceptionally compact.
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