CMMG AR-Platform Carbine Receiver Extension Buffer Tube for MK4/M4 Rifles, Black 55CA9D7

Product Description

The CMMG Receiver Extension (carbine buffer tube) is designed for MK4 and M4-style AR-platform builds, providing the correct interface for compatible collapsible stocks and proper buffer system alignment. Finished in black, this receiver extension is a dependable replacement or upgrade for completing a lower receiver build or refreshing worn components.

Product Highlights

• CMMG receiver extension (buffer tube) for MK4 and M4 carbine-style AR-platform applications
• Black finish to match common AR builds and lower receiver components
• Ideal for completing a lower receiver build or replacing a worn receiver extension
• Designed to support use with compatible carbine buffer and spring systems
• Genuine CMMG part for consistent fit and function

Specs

• Brand: CMMG
• Manufacturer Part Number: 55CA9D7
• UPC: 816422020676
• Type: Receiver Extension (Buffer Tube)
• Compatibility: MK4; M4 carbine-style AR-platform
• Color: Black
• Weight: 0.5 lb

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