AR-15-style 9mm pistol with a 4.5-inch chrome-moly barrel, M-LOK free-float handguard, A2 flash hider, flip-up sights and Glock-compatible magazines. Semi-automatic configuration suited to range practice and PCC-style competition.
The Rock River Arms BT-9 is an AR-style 9mm pistol configured with a 4.5-inch barrel and modern accessory points for modular use. It is built around a free-float M-LOK handguard and ships with flip-up iron sights and a pistol buffer tube. For a compact, reliable red-dot that stays under $1,000 and pairs well with this platform, consider the Holosun 507C for sighting speed and battery life. Applications include range training and pistol-caliber carbine (PCC) competition.
Product Specifications
The manufacturer is Rock River Arms.
The model designation is BT-9.
The listed caliber is 9mm.
The barrel length is 4.5 inches.
The barrel material is listed as chrome-moly.
The handguard is a M-LOK free-float design.
The muzzle device is an A2 flash hider.
The iron sights are listed as flip-up sights.
Magazine compatibility is Glock-compatible magazines.
Included controls and hardware reference a pistol buffer tube and hand stop.
The action type is semi-automatic.
The finish/color is listed as black.
Included magazine per listing: unspecified capacity (conflicting data).
UPC: 842834121496.
The BT-9 blends compact handling with an AR-style control layout and M-LOK accessory capability, making it a practical choice for shooters who want a 9mm platform for dedicated range work or competitive PCC stages. Its free-float handguard gives room for modern accessories while the chrome-moly barrel and A2 device provide a traditional balance of durability and muzzle signature. Consider pairing it with a red-dot optic such as the Holosun 507C for fast, reliable sighting in a compact package.
Disclaimer: Our e-commerce site uses stock images for item photography. In most cases, these are completely accurate however there are some cases where the image may not wholly reflect the item being purchased. It is your responsibility to verify the UPC of the item you are purchasing from us with the manufacturer to confirm you are placing an order for the correct item.
