Armscor Tcm Rocki 56878 Std Arm Lbe Ms 22Tcm 4.2 17R Blk

The Rock Island Armory TCM Rock Standard is a 22 TCM semi-automatic pistol built for shooters who want a high-velocity, low-recoil platform without compromise. Chambered in the factory-original 22 TCM cartridge and driving rounds downrange at over 1,850 fps, this compact steel-framed pistol delivers energy and speed with a notably light recoil impulse—making it appealing for both recreational shooting and personal protection applications. The 4.2-inch barrel and 8-inch overall length strike a balance between velocity and practical carry dimensions.

Built from 4140 Ordnance steel and finished with a durable parkerized coating, the TCM Rock Standard is hand-fitted to ensure reliability and consistency. The double-stack magazine well accepts 17-round magazines, giving you serious capacity in a compact package. You get a skeletonized hammer and trigger with adjustable overtravel stop for a tuned trigger feel, low-profile anti-snag front and rear sights for snag-free carry and draw, and checkered polymer grips for secure purchase in use. The fixed dovetail front sight features fiber optic material for better visibility, while the rear TRT1 adjustable sight lets you dial in your zero.

This is Rock Island's take on a high-velocity micro-platform—faster and lighter-recoiling than many common compact 9mm pistols, yet built on proven 1911-pattern steel architecture. Whether you're testing ammunition at the range, exploring an alternative defensive caliber, or looking for a precision compact with genuine speed advantages, the TCM Rock Standard brings legitimate performance and solid engineering.

Key Features

• Semi-automatic 22 TCM pistol with 4.2-inch barrel
• Factory original 22 TCM cartridge at 1,850+ fps with light recoil impulse
• 17-round double-stack magazine capacity
• 4140 Ordnance steel frame with parkerized finish
• Hand-fitted construction for reliability and consistency
• Skeletonized hammer and trigger with adjustable overtravel stop
• Fixed fiber-optic front sight and TRT1 adjustable rear sight
• Low-profile anti-snag sight design
• Checkered polymer grips
• 3.0–4.5 lb trigger pull range

Specifications

Frequently Asked Questions

What makes the 22 TCM cartridge different from 9mm or other compact pistol rounds?

The 22 TCM fires at over 1,850 fps from this barrel, delivering significantly higher velocity than standard 9mm loads. The result is a lighter recoil impulse combined with high-velocity impact—a different ballistic profile that appeals to shooters seeking speed and shootability in a compact platform.

Is the TCM Rock Standard suitable for personal protection and concealed carry?

Rock Island lists this pistol for both personal protection and recreational shooting. Its compact 8-inch overall length, low-profile sights, and light recoil make it carry-friendly, though ammunition availability and performance are factors any buyer should research independently for their jurisdiction and use case.

What's included and what sights come standard?

The pistol comes with checkered polymer grips and is equipped with a fixed fiber-optic front sight and a TRT1 adjustable rear sight, both low-profile designs to minimize snags. The skeletonized trigger features an adjustable overtravel stop for precision tuning.

What magazine capacity does this pistol hold?

The TCM Rock Standard features a double-stack magazine well and accepts 17-round magazines, providing substantial capacity for a compact pistol.