CMMG Replacement Barrel Kit 22D7C4A, 16.10" 22 LR, 4140 Chromoly Steel Black Nitride, Fits AR-15/Mk4.

The CMMG Replacement Barrel Kit, model 22D7C4A, is designed for dedicated .22 LR upper builds compatible with AR-15 and Mk4 platforms. It features a 16.1-inch barrel made from 4140 chromoly steel with a salt bath nitride finish and includes a barrel collar for installation.

• 16.1-inch barrel chambered in .22 Long Rifle
• 4140 chromoly steel construction with nitride finish
• Includes barrel collar for AR-15/Mk4 compatibility

This kit provides a durable and reliable solution for converting or building custom .22 LR AR-15 upper assemblies, ensuring dependable performance for recreational shooting or training.