TacFire 45 ACP Upper Receiver 4-Inch with Bolt Carrier

TacFire 45 ACP Upper Receiver Assembly

This complete upper receiver assembly from TacFire delivers the essentials for building a compact 45 ACP pistol-caliber carbine or AR pistol platform.

Key Features

• Caliber: 45 ACP
• Barrel Length: 4 inches
• Included Components: Upper receiver, barrel, and bolt carrier group
• Platform: AR-15 pattern, compatible with standard AR lower receivers
• Compact Design: The 4-inch barrel makes this ideal for close-quarters work or home defense

What You Get

This upper assembly arrives as a matched set, meaning the barrel and bolt carrier group are already fitted and tested together. Simply attach it to your AR-15 lower receiver, add a charging handle and handguard (if desired), and you're ready to shoot.

Why Choose This Upper

The 45 ACP cartridge has a reputation for reliable stopping power and mild recoil. The compact 4-inch barrel keeps overall length manageable while maintaining practical velocity for defensive or recreational shooting. TacFire components offer solid value for builders looking to create a functional, affordable platform.

Getting Started

If you already own an AR-15 lower receiver, this upper is a straightforward way to add 45 ACP capability to your collection. If you're building from scratch, you'll need a compatible lower receiver to complete the rifle.