CMMG 55AFFDC Buffer Retainer Spring AR-15 M16 Black Steel

The CMMG 55AFFDC Buffer Retainer provides reliable buffer tube retention for AR-15 and M16 platform rifles. This precision-manufactured component prevents buffer and spring migration during disassembly and maintenance operations.

What Makes This Different

Unlike standard buffer retainers that can bend or break under repeated use, the CMMG 55AFFDC features heat-treated steel construction with proper spring tension. The component maintains consistent pressure against the buffer without over-stressing the receiver threads. Military specification tolerances ensure drop-in compatibility with all milspec AR-15 lower receivers.

Key Features

• Heat-treated steel construction resists deformation and fatigue
• Milspec dimensions fit all AR-15 and M16 lower receivers
• Proper spring tension prevents buffer tube walkout
• Black oxide finish provides corrosion resistance
• Drop-in replacement for worn or damaged retainers
• Maintains buffer alignment during cycling
• Compatible with carbine and rifle length buffer systems

Field performance remains consistent across temperature extremes and high round counts. The retainer maintains proper buffer positioning during rapid fire sequences and prevents component loss during field stripping. Law enforcement armorers and competitive shooters rely on quality buffer retainers to maintain weapon function during extended training cycles.

Technical Specs

• Material: Heat-treated carbon steel
• Finish: Black oxide coating
• Thread pitch: Standard AR-15 receiver threads
• Compatibility: AR-15, M16, and compatible platforms
• Weight: Approximately 0.1 ounces
• Country of origin: United States
• Manufacturer: CMMG Inc.

Professional armorers stock CMMG components for their proven reliability and consistent manufacturing quality. This buffer retainer ships ready to install with no additional fitting required.