The TacFire UPK1 Upper Parts Kit provides all essential components needed to complete an AR-15 upper receiver assembly. This comprehensive kit eliminates the hassle of sourcing individual parts while ensuring proper fitment and function across standard AR platform builds.
What Makes This Different
Unlike basic parts kits that skimp on quality control, the UPK1 includes precision-machined components manufactured to mil-spec tolerances. Each part undergoes individual inspection before packaging, reducing assembly issues common with budget alternatives. The black finish provides consistent appearance across all components while offering superior corrosion resistance compared to uncoated steel parts.Key Features
- Complete upper parts kit with all necessary components for AR-15 assembly
- Mil-spec aluminum and steel construction for reliable performance
- Black finish provides corrosion resistance and uniform appearance
- Precision-machined components ensure proper fitment and function
- Compatible with standard AR-15 upper receivers and charging handles
- Includes forward assist assembly, ejection port cover, and hardware
- Quality control inspection on individual components before packaging
Technical Specs
- Material: Aluminum and steel construction
- Finish: Black coating for corrosion resistance
- Compatibility: Standard AR-15 upper receivers
- Includes: Forward assist assembly, ejection port cover, springs, detents, and pins
- Manufacturing: Machined to mil-spec dimensional standards
- Thread pitch: Standard AR-15 specifications
- Package: Individual component packaging with installation hardware

