The Rock River Arms R9 Competition in 9mm Luger (MPN BT91700.V1) is a pistol-caliber AR-platform rifle built around a 16-inch fluted barrel for fast, low-recoil competition shooting. Rock River Arms fits a two-stage ultra match trigger, a flared magwell, and a Hogue rubber grip, and machines the rifle to accept Glock-pattern magazines directly. A 9mm mini brake threaded 1/2×36 tames muzzle rise, and a 15-inch M-LOK handguard gives room to mount accessories, all finished in black. Among AR-platform rifles in the AR rifles category, the R9 Competition favors competitive shooters who want a fast-handling, low-recoil pistol-caliber carbine.

Key Specifications

• Chambered in 9mm Luger with a 1:10-inch rate of twist.
• Built on a semi-automatic pistol-caliber AR platform.
• Features a 16-inch fluted barrel.
• Includes a two-stage ultra match trigger.
• The muzzle device is a 9mm mini brake, threaded 1/2×36.
• Feeds directly from Glock-pattern magazines with a 17-round capacity.
• The magwell is flared for faster reloads.
• The handguard is a 15-inch M-LOK design.
• The grip is a Hogue rubber design.
• The safety is a dedicated selector switch.

Frequently Asked Questions

What magazines does this rifle use? Glock-pattern pistol magazines, fed through a flared magwell.

What trigger does this rifle use? A two-stage ultra match trigger.

Does this rifle include a forward assist? No, this configuration ships without a forward assist.

Buy the Rock River Arms R9 Competition 9mm

A fast-handling, low-recoil pistol-caliber carbine is exactly what the R9 Competition delivers. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.