CMMG 55CA977 Buffer Assembly Silver AR-15 Carbine Weight System

The CMMG 55CA977 Buffer Assembly delivers reliable cycling performance for AR-15 carbine-length gas systems. This precision-manufactured buffer system maintains proper bolt carrier group timing while reducing felt recoil and muzzle rise during rapid fire sequences.

What Makes This Different

CMMG engineers this buffer assembly with precise weight distribution that optimizes dwell time for carbine gas systems. The silver anodized finish provides enhanced corrosion resistance compared to standard phosphate coatings. Internal tungsten weights are strategically positioned to deliver consistent cycling across various ammunition weights and environmental conditions.

Key Features

• Carbine-weight buffer optimized for 16-inch barrel configurations
• Silver Type III hard anodized aluminum construction resists wear
• Tungsten internal weights provide precise mass distribution
• Standard mil-spec dimensions ensure drop-in compatibility
• Dampens bolt carrier impact for smoother operation
• Reduces cyclic rate for improved control during sustained fire
• Compatible with all standard AR-15 buffer tube assemblies

Field testing demonstrates consistent extraction and ejection patterns across temperature ranges from -20°F to 140°F. The buffer maintains timing integrity through high round counts, making it suitable for competitive shooting, law enforcement applications, and recreational use. Proper buffer weight selection directly impacts reliability, with this carbine-weight configuration matching the gas pressure characteristics of standard 16-inch barrels.

Technical Specs

• Weight: 3.0 ounces (carbine standard)
• Length: 3.25 inches overall
• Material: 6061-T6 aluminum with tungsten weights
• Finish: Type III hard anodized silver
• Thread: Standard buffer tube compatibility
• Gas system: Optimized for carbine-length (9.5-inch)
• Manufactured: United States
• Warranty: CMMG limited lifetime warranty

This buffer assembly represents proven engineering focused on consistent performance rather than marketing claims. CMMG's reputation for precision manufacturing ensures each component meets mil-spec tolerances for reliable function across diverse operating conditions.