The TacFire Up01 AR-15 Milspec Forged Stripped Upper Receiver is built around a rugged A3 flat-top design, giving shooters a solid foundation for their preferred optics and accessories. Forged from 7075-T6 aircraft-grade aluminum and finished in a Type III hard anodize, this upper receiver is mil-spec and includes M4 feed ramps to support reliable cycling with standard .223 Remington, 5.56 NATO, and .300 AAC Blackout cartridges.

This stripped upper is ideal for builders who want a dependable starting point for a custom AR-15, whether the rifle is destined for range use, training, or general-purpose shooting. The flat-top Picatinny rail makes it easy to configure sights or optics to match your needs, while the precise machining helps ensure consistent fit with compatible mil-spec lowers. TacFire’s attention to detail and commitment to practical, well-made components is evident in the clean lines and robust construction of this receiver.

Key Features:

• Manufacturer: TacFire
• Model: Up01 AR-15 Milspec Forged Stripped Upper Receiver
• Caliber: .223 Remington / 5.56 NATO / .300 AAC Blackout
• Condition: New
• Gun Model: AR-15
• Action: Semi-Automatic (upper receiver component)
• Finish Color: Black Anodized
• Unique Features: A3 Flat Top Design, M4 Feed Ramps, Picatinny Rail
• Weight: 6.9 oz (approximate)