The TacFire MAR040 Mil-Spec Buffer Tube Black Hardcoat Anodized Aluminum for AR-15 is a rugged carbine buffer tube built from 6061-T6 aircraft grade aluminum. Its matte black Type III Class II hard coat anodizing delivers excellent wear resistance, while tight tolerance control ensures a precise, zero-gap fit with polymer stocks and receivers for smooth, silent operation. Designed around the AR-15 platform, it interfaces cleanly with Mil-Spec butt stocks for dependable performance.

This buffer tube is well suited for AR-15 builds that prioritize reliability and consistent function at the range or during training. Its durable construction and carefully controlled dimensions make it a solid choice for shooters assembling a new rifle or upgrading an existing carbine. The combination of aircraft grade aluminum and hard coat anodizing reflects TacFire’s focus on practical design and proven manufacturing quality.

Key Features:

• Manufacturer: TacFire
• Model: MAR040 Mil-Spec Buffer Tube
• Material: 6061-T6 Aircraft Grade Aluminum
• Finish: Matte Black Type III Class II Hard Coat Anodizing
• Firearm Fit: AR-15 Carbine
• Compatibility: Mil-Spec Butt Stocks
• Length: 7.30"
• Weight: 3.60 oz