Do it! worth every penny - CMMG 22LR Mk4 Barrel Kits w/ Collar

I recently installed the CMMG MK4 .22LR Barrel Kit on my BCM AR-15 upper and it completely transformed my plinking sessions into awesomeness. The 9.2” M4-profile barrel with its 1:16 twist and salt bath nitride finish delivers impressive accuracy, easily grouping tight with standard .22LR ammo and stabilizing everything from cheap bulk packs to high-velocity rounds.
Building a dedicated .22LR upper was straightforward thanks to the included barrel collar and quality construction, and it runs flawlessly on standard AR lowers without the headaches of a typical conversion kit.
Recoil is virtually nonexistent, making it perfect for extended range time or introducing new shooters, and the 1/2x28 threading pairs beautifully with suppressors for that satisfying quiet experience.
Whether you’re training affordably or just want hours of reliable fun on the cheap, this kit is a game-changer that feels like a premium dedicated .22 rifle while keeping your 5.56 setup intact.
Highly recommend