Wilson Combat115734359
Wilson Combat TRUPPER Forged 7075-T6 Aluminum Upper Receiver for AR-15, 5.56x45mm NATO, Black Anodized$87.95
Availability: In Stock
The TacFire BU-556-10 is a complete AR-platform pistol upper assembly in 5.56x45mm NATO, designed for shooters building a short-barreled AR pistol or upgrading an existing lower receiver. This is a fully assembled upper—barrel, bolt carrier group, and receiver all pre-installed—so if you've got a lower and lower parts kit on hand, you're ready to start shooting. No gunsmithing required.
Built on a 7075-T6 aluminum receiver with hard-coat black anodizing, the BU-556-10 is designed to take the wear of regular use. The 10-inch barrel is finished in black nitride, a corrosion-resistant treatment that handles both range sessions and field conditions. The handguard uses M-LOK slots, giving you modern mounting options for lights, grips, and other rail-mounted gear without committing to a full Picatinny rail system.
Since the bolt carrier group comes already installed, you're not hunting for compatible parts or worrying about headspace—the unit ships ready to function once mated to a compatible lower. This makes the BU-556-10 a straightforward choice for AR pistol builders who want a no-fuss upper assembly and don't want to source and assemble individual components.
| Caliber | 5.56x45mm NATO |
| Barrel Length | 10 inches |
| Barrel Finish | Black Nitride |
| Receiver Material | 7075-T6 Aluminum |
| Receiver Finish | Hard-Coat Black Anodize |
| Handguard Type | M-LOK |
| Bolt Carrier Group | Included |
| Platform | AR-Platform |
Yes, the BU-556-10 is compatible with standard AR-platform lower receivers. You'll need a lower and lower parts kit to complete the rifle; the upper assembly itself includes everything else.
Yes, the bolt carrier group is included and pre-installed in the upper assembly, ready to function as soon as it's mated to a compatible lower.
A 10-inch barrel makes for a compact, maneuverable platform suitable for close-quarters shooting, home defense, and vehicle use. It keeps velocity adequate for 5.56x45mm while minimizing overall length—important if you're building an SBR or pistol configuration.
The M-LOK slots allow you to attach compatible optics mounts, lights, foregrips, and other tactical accessories. You'll need M-LOK-compatible mounting hardware for each item.
SKU: 200191209 • Width: 3.2in • Height: 3.2in • Depth: 20.2in • Weight: 3.669oz
Availability: In Stock
The TacFire BU-556-10 is a complete AR-platform pistol upper assembly in 5.56x45mm NATO, designed for shooters building a short-barreled AR pistol or upgrading an existing lower receiver. This is a fully assembled upper—barrel, bolt carrier group, and receiver all pre-installed—so if you've got a lower and lower parts kit on hand, you're ready to start shooting. No gunsmithing required.
Built on a 7075-T6 aluminum receiver with hard-coat black anodizing, the BU-556-10 is designed to take the wear of regular use. The 10-inch barrel is finished in black nitride, a corrosion-resistant treatment that handles both range sessions and field conditions. The handguard uses M-LOK slots, giving you modern mounting options for lights, grips, and other rail-mounted gear without committing to a full Picatinny rail system.
Since the bolt carrier group comes already installed, you're not hunting for compatible parts or worrying about headspace—the unit ships ready to function once mated to a compatible lower. This makes the BU-556-10 a straightforward choice for AR pistol builders who want a no-fuss upper assembly and don't want to source and assemble individual components.
| Caliber | 5.56x45mm NATO |
| Barrel Length | 10 inches |
| Barrel Finish | Black Nitride |
| Receiver Material | 7075-T6 Aluminum |
| Receiver Finish | Hard-Coat Black Anodize |
| Handguard Type | M-LOK |
| Bolt Carrier Group | Included |
| Platform | AR-Platform |
Yes, the BU-556-10 is compatible with standard AR-platform lower receivers. You'll need a lower and lower parts kit to complete the rifle; the upper assembly itself includes everything else.
Yes, the bolt carrier group is included and pre-installed in the upper assembly, ready to function as soon as it's mated to a compatible lower.
A 10-inch barrel makes for a compact, maneuverable platform suitable for close-quarters shooting, home defense, and vehicle use. It keeps velocity adequate for 5.56x45mm while minimizing overall length—important if you're building an SBR or pistol configuration.
The M-LOK slots allow you to attach compatible optics mounts, lights, foregrips, and other tactical accessories. You'll need M-LOK-compatible mounting hardware for each item.
SKU: 200191209 • Width: 3.2in • Height: 3.2in • Depth: 20.2in • Weight: 3.669oz