Shop for Arsenal Firearms AR-M1 caliber-5-56x45mm-ar online at

The Arsenal AR-M1 semi-automatic is chambered in 5.56 x 45 mm. It modernizes the Soviet AK-47 Kalashnikov and further improves it. The AK-47 was famously proliferated through Warsaw Pact country armies during the Cold War. Many of the countries such as Bulgaria started local production. Over time, it was natural to make process and functional improvements, but Arsenal of Bulgaria also prides itself on its craftsmanship that wasn’t always evident on the originals.

Arsenal is the exclusive US manufacturer of guns based on products made in the Circle 10 Factory, Arsenal of Kazanlak in central Bulgaria. Arsenal started operations in 2000 and is based in Las Vegas, Nevada. It makes a line of shoulder-fired, gas-operated, magazine-fed semi-automatics based on 7.62x39mm, 5.56x45mm, and 5.45x39.5mm calibers using forged, CNC milled or stamped receivers.

The all matte black gun measures 36.6” overall with the polymer butt or 37.4” with the metal one. The package tips the scales at 8.1 pounds empty without any ammunition or even the magazine inside.

The 16.33” length AR-M1 barrel is hammer-forged, and chrome lined for durability. Inside six grooves spiral at a 1:7” twist ratio. Exhaust gases vented from the barrel power the system. You’ll also notice the polymer furniture instead of the older woodwork.

The AR-M1 also includes an AK-74 front sight base. The rear sight is effective to 875 yards while the gun’s maximum range is 1,480 yards (4,440 feet) or .84 miles.

The gun fires up to 40 rounds per minute in single-fire mode. It comes with a 20-round “Waffle Pattern" mag. The company’s magazines are very durable with plenty of metal/steel reinforcements at the bottom, along the inner curved frontstrap, at the feed lips on top, etc.

Optional accessories include a flash suppressor, luminous spots on the sights and an accessory rail for optics. You can also get 20 or 30-round translucent polymer magazines.

The very similar AR-M1F features the folding stock, hence the “F” suffix. Folding AR-M1F versions compact down to 27.6” with the butt folded forward.

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