Description
The CMMG AR-15 .22LR Conversion Kit Echo Series allows shooters to quickly convert a standard AR-15 chambered in .223 Remington or 5.56 NATO to fire economical .22 Long Rifle ammunition. This drop-in conversion kit replaces the standard bolt carrier group, allowing inexpensive rimfire training while using your existing AR-15 upper receiver.
Designed for fast installation, the conversion kit requires no permanent modifications to the firearm. Simply remove the existing bolt carrier group and insert the CMMG conversion bolt assembly to begin shooting .22LR. This system allows shooters to practice with their AR platform while significantly reducing ammunition costs and recoil.
The Echo Series conversion kit includes a durable 10-round .22LR magazine and a precision engineered conversion bolt assembly designed to deliver reliable cycling with quality rimfire ammunition. This makes it an excellent option for training, recreational shooting, and introducing new shooters to the AR platform.
Quick Highlights:
• Converts AR-15 rifles from .223 / 5.56 to .22LR quickly and easily
• Drop-in bolt conversion requires no permanent modifications
• Includes 10-round .22LR magazine
• Ideal for low-cost training and range practice
• Lightweight rimfire recoil for improved control and new shooters
• Designed for compatibility with most standard AR-15 platforms
Use Cases & Applications:
• AR-15 training with inexpensive .22LR ammunition
• Recreational plinking and range shooting
• Introducing new shooters to the AR platform
• Low-recoil practice and skill development
• Reducing ammunition costs while maintaining platform familiarity
Technical Details:
• Manufacturer: CMMG
• Series: Echo
• Platform Compatibility: AR-15
• Product Type: Conversion Kit
• Conversion Caliber: .22 Long Rifle (.22LR)
• Compatible Host Calibers: .223 Remington / 5.56 NATO
• Magazine Capacity: 10 Rounds
• Magazine Type: Detachable
• Installation: Drop-In Bolt Conversion System





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