First Look: Bear Creek BC 204 Rifle

A compact rifle that uses Hornady's 17 Mach 2 round.

by
posted on June 15, 2025
** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. **
Bca Mach 17

Bear Creek Arsenal has just announced the launch of a new semi-automatic, rimfire carbine chambered for .17 Mach 2, the new Bear Creek Arsenal BC 204 series.

Bear Creek Arsenal BC 204 .17 Mach 2 rimfire semi-automatic carbines are patterned after the popular and proven Ruger 10/22 blowback rimfire action. This means that BC 204 .17 Mach 2 rimfire carbines also feed from the same rotary rimfire magazines as a 10/22. Bear Creek Arsenal then marries these proven actions to a 416 R stainless steel lightweight, match-grade barrel with a threaded muzzle. BC 204 receivers are machined from industry standard 7075-T6 aluminum and include an integrated Picatinny mounting base. This makes it extremely easy to mount any optic out of the box to your rifle. BC 204 barreled actions are bedded over Hogue synthetic stocks that include integrated sling mounts; stocks can be had in either black or green colors.

Bear Creek BC 204 Rimfire Carbine Features And Specifications 

  • Action: Semi-automatic rimfire blowback
  • Caliber: .17 Mach 2
  • Barrel Length: 16 inches
  • Barrel Profile: Lightweight match
  • Barrel Twist: 1:9-inch
  • Barrel Finish: Stainless steel
  • Barrel Material: 416 R Stainless steel
  • Thread Pitch: 0.5x28 tpi

The .17 Mach 2, also known as .17 HM2, is a .17 caliber (4.5mm) rimfire cartridge developed by Hornady and introduced in 2004. It follows in the footsteps of the popular and successful .17 HMR rimfire cartridge and the shorter .17 Mach 2 is based on the .22 LR “Stinger” case. .17 Mach 2 cartridges are typically loaded with bullets that weigh roughly 50-percent less than comparable .22 LR bullets. As a result, the lighter projectile makes it easier for this rimfire cartridge to reach muzzle velocities faster than the typical .22 LR round. 

Both Bear Creek Arsenal BC 204 models retail for $429. To learn more about these new .17 Mach 2 rimfire carbines or other firearms sold and designed by Bear Creek Arsenal, visit bearcreekarsenal.com.

Latest

Chiappa 60 DS .44 Magnum revolver
Chiappa 60 DS .44 Magnum revolver

First Look: Chiappa 60 DS .44 Magnum Revolver

Chiappa's large-frame revolver is chambered in a Dirty Harry-approved .44 Magnum.

Straight Talk: Know Your Gun

When you trust your life to a tool, you must know it inside and out.

First Look: Safariland Holster Fits for Glock Gen6 Pistols

Glock's latest generation of striker-fired handguns has dedicated holster fits from Safariland.

Ammo: .458 SOCOM

It’s a bigger, badder version of Jeff Cooper’s “Thumper.”

First Look: TAG Precision Optic Plate for Kimber Pistols

Fans of the Kimber 2K11 have a new option for optics-mounting plates.

Shotguns: Cleaning Tips for Your Shotgun

Yes, even shotguns need cleaning. Here’s a quick primer on how to do it properly.

Interests



Get the best of Shooting Illustrated delivered to your inbox.