Davidson Defense Deadlock 7.5" 45ACP AR-45 Quad-Rail Upper Build with Freakin45 Suppressor

Deadlock 7.5-Inch 1:16 45ACP AR-45 Quad-Rail Pistol Complete Upper with Witt Machine Suppressor

This is a complete AR-45 upper built for precision .45 ACP performance in a compact pistol platform. The 7.5-inch barrel pairs with a free-float quad-rail handguard and includes a Witt Machine ultra-compact suppressor, making this a ready-to-mount upper for .45 ACP builds. The Bear Creek barrel uses 4150 Chrome Moly Vanadium steel with a 1:16 twist rate optimized for .45 ACP ballistics. The PCC bolt assembly and charging handle are included.

Key Features

• 7.5-inch Bear Creek 4150 CrMoV barrel in .45 ACP with 1:16 twist rate
• Free-float 10-inch quad-rail handguard with Picatinny rails for optics and accessories
• Billet aluminum upper receiver sized for pistol caliber platforms
• Witt Machine The Freakin45 4-inch ultra-compact suppressor with Graphite Black Cerakote finish
• PCC bolt assembly and mil-spec M4 charging handle included
• Hughes Precision thread adapter for suppressor mounting compatibility

Perfect For

• .45 ACP pistol caliber carbine builders seeking suppressed performance
• Shooters prioritizing compact form factor with full-size caliber power
• Builders looking for a complete upper with integrated suppression solution
• PCC competition shooters and home defense setups

Suppressor Integration and Performance

The Witt Machine The Freakin45 is an ultra-compact suppressor designed specifically for .45 ACP platforms. At 4 inches long, it maintains a compact profile while reducing sound signature. The suppressor uses a 5/8x24 thread pitch, and the included Hughes Precision thread adapter converts the barrel's .578x28 threads for seamless compatibility. The graphite black cerakote finish resists corrosion and blends with the upper receiver and handguard.

Quad-Rail Mounting Ecosystem

The free-float quad-rail handguard provides four full-length Picatinny rails for mounting optics, laser systems, lights, and vertical grips. Free-float design isolates the barrel from handguard pressure, supporting consistent .45 ACP accuracy. The 10-inch length balances modularity with the compact 7.5-inch barrel, allowing flexible accessory placement without overhanging the muzzle.

Complete Upper Compatibility

This upper assembly is ready to mount on any AR-15 compatible lower receiver. The PCC bolt assembly is optimized for .45 ACP feeding and cycling. The charging handle is mil-spec standard. BCG and charging handle are included. Lower receiver not included.

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.