The Rock River Arms Rock Chuck Carbine in .17 HMR (MPN 17HMR1325) is a rimfire AR-pattern rifle built around an 18-inch barrel rifled at a 1:10-inch twist for flat-shooting varmint work. Rock River Arms fits the carbine with an NM Ultra Match two-stage trigger, a 15-inch handguard with a top rail and M-LOK slots, an A2 flash suppressor, and a Magpul MOE pistol grip. The rifle feeds from a detachable 10-round magazine and rides on a Magpul six-position buttstock. Among AR-pattern rifles in the AR rifles category, the Rock Chuck Carbine favors varmint hunters who want a flat-shooting rimfire AR in a familiar manual of arms.

Key Specifications

• Chambered in .17 HMR with a 1:10-inch rate of twist.
• Features an 18-inch barrel.
• Feeds from a detachable magazine with a 10-round capacity.
• Includes an NM Ultra Match two-stage trigger.
• Fitted with a 15-inch handguard with a top rail and M-LOK slots.
• Finished with an A2 flash suppressor.
• Uses a Magpul MOE pistol grip.
• Rides on a Magpul six-position buttstock.
• Weighs approximately 6.75 pounds.

Frequently Asked Questions

What trigger does this rifle use? An NM Ultra Match two-stage trigger.

What is the magazine capacity? A detachable 10-round magazine.

Is this rifle chambered for a centerfire or rimfire cartridge? Rimfire — it’s chambered in .17 HMR.

Buy the Rock River Arms Rock Chuck Carbine .17 HMR

A flat-shooting rimfire AR built for varmint hunting is exactly what the Rock Chuck Carbine delivers. As soon as it’s ready to ship, order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.