This CMMG barrel and bolt group kit converts a compatible upper into a dedicated .22 LR system for economical range work and training. The kit pairs a medium-taper 4.5-inch barrel with CMMG bolt components and a salt bath nitride finish for corrosion resistance.
Key Specifications
- Caliber: .22 LR.
- Barrel length: 4.5 inches.
- Barrel twist: 1:16.
- Barrel contour: MT (Medium Taper).
- Barrel material: 4140CM with salt bath nitride finish inside and out.
- Muzzle thread: 1/2-28.
- Finish: Salt Bath Nitride.
- Chamber: 22LR Sporting Chamber.
- Intended fit: Fits AR-15/MK4 uppers (conversion kit).
- Kit contents: Barrel and bolt group for converting an existing upper to dedicated .22 LR.
All CMMG products include the manufacturer’s Lifetime Quality Guarantee. This kit is designed for economical practice, training, and recreational shooting where a dedicated .22 LR upper is preferred. Use a compatible magazine and follow recommended hammer and ammunition guidance for best function.
This description was generated with AI and may contain errors. Verify specifications and legal restrictions with the manufacturer before purchase. Provided “as-is” without warranties or guarantees.
