CMMG Unveils the First 5.7x28mm to .22LR Conversion Kit
CMMG has expanded on its popular .22LR conversion kits with the addition of the Mk57 .22LR AR Conversion Kit. It allows you to convert your CMMG 5.7x28mm upper receiver group into a .22LR. Simply swap the bolt-carrier group, paired with the 5.7x28mm upper and any Mil-Spec AR15/Mk4 lower receiver. It does require the use of a dedicated CMMG .22LR magazine.
CMMG prides itself on caliber flexibility. The ability to shoot multiple calibers with one lower has its obvious advantages, including needing just one firearm, reduced cost, muscle memory and storage to name a few.
Pair .22LR Conversion Kit with CMMG Upper
The new kit is designed to be used with all CMMG Mk57 5.7x28mm upper receiver groups and bolt/barrel combinations when paired with any Mil-Spec AR15/Mk4 lower receiver. CMMG offers Mk57 5.7x28mm complete uppers in 5-inch, 8-inch and 16-inch barrel lengths. Â
Converting any CMMG Mk57 upper to shoot .22LR is a great way to reduce cost with each pull of the trigger, all while reducing recoil and muzzle flash. Anyone who is interested in 5.7x28mm, but is concerned about ammo prices, can take advantage of cost-effective rimfire training. It’s the ultimate tool for young or first-time shooters.
This Kit Comes With 3 Magazines
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Steven Paul Barlow is a retired sergeant/station commander and former firearms instructor with the New York State Police. He is an avid hunter, fisherman, and enthusiast with all things related to firearms, knives, and survival. He has been writing on outdoor topics for more than 35 years. His collections of outdoor humor stories are available at BriarHill Books.