Phase 5 Hex-2 Buffer Tube Complete Assembly - Hex-2-C

Upgrade your AR-15 pistol build with the Phase 5 Hex-2 Buffer Tube Complete Assembly, engineered for superior stability and versatility in tactical applications. This heavy-duty buffer tube combines a distinctive hexagonal profile with a round rear section, delivering enhanced ergonomics and reliable performance for pistol configurations.

Key Features and Benefits

• Premium 7075-T7 Billet Aluminum Construction – CNC-machined for exceptional strength and durability, resisting wear in demanding environments while keeping overall weight manageable at 11.5 oz.
• Hexagonal Design for Improved Handling – The unique shape provides a secure grip and optimized compatibility with popular pistol braces, solving common issues with slippage during rapid deployment.
• Complete Assembly Package – Includes everything needed for immediate installation: Hex-2 buffer tube, castle nut, end plate, 3.5″ nitrile foam pad, standard 3 oz carbine buffer, and Phase 5 enhanced buffer spring.
• 7.4-Inch Length – Ideal for compact AR pistol setups, offering balanced recoil management without adding unnecessary bulk.

Technical Specifications

• Material: 7075-T7 billet aluminum
• Weight: 11.5 oz
• Length: 7.4 inches
• Compatibility: Standard AR-15 pistol platforms (not compatible with adjustable braces or PDW systems)
• Includes: Foam pad, carbine buffer, enhanced spring, hardware

Why Choose the Phase 5 Hex-2 Complete Assembly?

This kit addresses key pain points for builders seeking a robust, ready-to-install solution. The included enhanced buffer spring and foam pad reduce felt recoil and improve shooter comfort, while the billet construction ensures long-term reliability. Perfect for custom AR pistol projects where quality components make the difference in function and fit.

Common Questions About Pistol Buffer Kits

Explore these FAQs to ensure the Hex-2 meets your build requirements.

Is the Hex-2 Buffer Tube compatible with SB Tactical braces?

Yes, the design was developed with input for optimal fit with SB Tactical pistol braces, providing a stable platform for non-adjustable setups.

What buffer and spring are included?

The complete assembly comes with a standard 3 oz carbine buffer and a Phase 5 enhanced buffer spring for smooth, consistent cycling.

Can this be used on rifle-length configurations?

No, this is specifically a pistol buffer tube assembly and is not intended for standard rifle or carbine stock applications.