CMMG AR Conversion Kit Bravo Features The CMMG AR Conversion Kit Bravo drops directly into any standard 5.56/.223 AR lower by replacing the existing bolt carrier group requiring no permanent modification to the host firearm and allowing shooters to return to centerfire configuration in minutes. Stainless steel construction delivers the corrosion resistance and durability needed for sustained rimfire use where lead and carbon fouling are more prevalent than in centerfire applications. For best performance CMMG recommends a round-style hammer rather than a notched hammer as notched hammers can cause function issues with the conversion kit s rimfire ignition geometry. The three included 25-round full-body magazines in FDE provide ample capacity for extended range sessions and 36-grain plated nose bullets have proven to be the most reliable ammunition choice for consistent function through the conversion. The semi-auto only design keeps the kit straightforward and compatible with the widest range of AR lowers though shooters should note the kit is not guaranteed to fit .223 Wylde chambers. For AR owners who want to stretch their training budget and log more trigger time on a familiar platform the CMMG AR Conversion Kit Bravo in .22 LR is available for sale at GrabAGun. CMMG AR Conversion Kit Bravo Specifications Manufacturer: CMMG Model: AR Conversion Kit Bravo Caliber: .22 LR Material: Stainless Steel Finish: Flat Dark Earth Action: Semi-Automatic Only Magazines Included: 3 Magazine Capacity: 25 Compatible Platforms: 5.56/.223 AR Note: Not guaranteed to fit .223 Wylde chambers; round-style hammer recommended Available At: GrabAGun