A gotta have item - CMMG 22LR Mk4 Barrel Kits w/ Bolt Group

When I bought my M&P 15, the owner of the gun store said I could get a conversion kit that was a new magazine and a bolt carrier. So I shot some 5.56 and thought maybe I should look into .22lr! Less bang noise, ammo co$t, less wear on 70 year old body. Did some reading, there are some drawbacks of using .22lr through a 1:7 twist barrel. Made decision to do dedicated upper. Reading recommended getting barrel and bolt together from same company. CMMG and Optics Planet filled the bill. Great products, great service. To end the story, finished assembly with all parts, test fired, and it runs absolutely amazing. Now I have 2 caliber guns under 1 serial number. If you're going to build a dedicated upper this is the part to get.