Davidson Defense Anvil 5" 45ACP AR-45 Tubular Pistol Upper Build with Freakin45 Suppressor

Anvil 5-inch 1:16 45ACP AR-45 Tubular Pistol Complete Upper Build

This is a complete AR-45 upper assembly built on a billet pistol caliber receiver with a precision 5-inch 4150 CrMoV barrel and free-float handguard. The setup includes a Witt Machine suppressor pre-threaded and ready to mount, making this a true suppressed-ready configuration for .45 ACP blowback operation.

Key Features

• 5-inch 4150 CrMoV barrel with 1:16 twist rate optimized for .45 ACP
• 6061 billet pistol caliber upper receiver with tight tolerances
• 7-inch free-float smooth handguard for consistent accuracy
• Witt Machine The Freakin45 Ultra-Compact Suppressor included and pre-threaded
• PCC-specific bolt assembly designed for .45 ACP blowback cycling
• AR-15 M4 mil-spec charging handle for reliable operation
• Hughes Precision thread adapter for seamless suppressor mounting

Perfect For

• Shooters building suppressed .45 ACP pistol caliber carbines
• Users prioritizing compact form factor with full suppressor integration
• Builders seeking precision barrel work with optimized twist rates
• Those wanting a complete upper without sourcing individual components

Suppressor Integration and Performance

The Witt Machine The Freakin45 suppressor arrives pre-mounted with the correct thread adapter already installed. The 4-inch length keeps overall profile compact while delivering effective sound reduction on subsonic .45 ACP ammunition. The graphite black Cerakote finish matches the upper receiver aesthetic and provides corrosion resistance.

Blowback Cycling and Barrel Design

This build uses a slim profile 4150 CrMoV barrel with parkerized finish, paired with a PCC-specific bolt assembly engineered for .45 ACP blowback operation. The 1:16 twist rate stabilizes standard .45 ACP rounds reliably. Blowback operation means the bolt carrier cycles directly from barrel pressure without a separate gas system, resulting in simpler mechanics and reduced maintenance compared to gas-operated designs.

Free-Float Handguard and Accuracy

The 7-inch free-float smooth handguard isolates the barrel from contact with the upper receiver, reducing vibration and improving shot-to-shot consistency. This design supports precision shooting while maintaining the compact profile necessary for a pistol caliber carbine.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws. Verify suppressor compatibility before use. Ensure secure mounting before operation. Use only in accordance with applicable laws. May Dropship from Davidson Defense.