Phase5 AR15 Pistol Buffer Tube Complete Assembly (PBT-CA)
Not Yet Rated | Write the First Review SKU: 222-PHA-PBT-CA
UPC: 813318000000

Phase5 AR15 Pistol Buffer Tube Complete Assembly (PBT-CA)

Complete. Compact. Mission-Ready.
The Phase5 AR15 Pistol Buffer Tube Complete Assembly (PBT-CA) is your all-in-one solution for building a reliable and rugged AR pistol platform. Designed for shooters who demand uncompromising quality and streamlined installation, this kit combines Phase5’s premium billet-machined Pistol Buffer Tube with high-performance components—ready to drop into your build.

Whether you're upgrading your current pistol or starting a fresh build, the PBT-CA offers unmatched durability, tight tolerances, and combat-proven reliability. With every piece engineered for precision and compatibility, this is the buffer tube assembly serious shooters trust.

🔧 What’s Included:

• Phase5 Pistol Buffer Tube (PBT) – CNC-machined from a solid billet of 7075-T7 aluminum
• Phase5 Enhanced Castle Nut – Locks down rock-solid for maximum security
• Mil-Spec End Plate – Ensures proper fit and alignment
• High-Tension Carbine Buffer Spring – For consistent cycling and reduced recoil
• Carbine Buffer (3oz) – Mil-Spec weight for smooth operation
• All mounting hardware included

📌 Key Features:

• 7075-T7 Billet Aluminum Buffer Tube – Overbuilt for strength and minimal flex
• Hardcoat Anodized Finish – MIL-A-8625 Type III Class 2 for extreme wear resistance
• Perfect for AR-15 Pistol Builds – Compact and brace-compatible
• Complete Drop-In Kit – No guesswork or sourcing extra parts
• Made in the USA – Engineered and manufactured for professional use

• ---

📐 Specifications:

• Tube Length: 7.4”
• Material: 7075-T7 Aluminum (buffer tube)
• Finish: Black Hardcoat Anodized
• Threading: 1-3/16" - 16 TPI (standard for AR-15 lowers)
• Weight (tube only): ~5.4 oz
• Compatibility: Mil-Spec AR-15 lower receivers & braces

💡 Why Choose the Phase5 PBT-CA?

• Combines all essential parts in one high-quality package
• Built for tight tolerances, enhanced cycling, and recoil reduction
• Excellent for pistol-caliber carbines and tactical AR pistol configurations
• Clean, snag-free aesthetics for modern builds
• Engineered for professional shooters, LEO, and high-demand users

🛠️ Ideal For:

• AR-15 pistol builds
• Tactical short-barrel rifle (SBR) conversions
• Home defense and vehicle applications
• Custom PDW and CQB setups
• Law enforcement and competitive shooters

• ---