The Tacfire BU-308-10 10" .308 Win Built Upper with BCG is a complete, ready-to-install upper receiver assembly designed for .308 Winchester / 7.62x51 AR-10 style rifles. This factory-built upper comes fully assembled with a 10-inch barrel, bolt carrier group (BCG), and charging handle, making it an excellent choice for builders looking to create a compact, powerful short-barreled .308 rifle or pistol. Whether you're building a home defense firearm, a truck gun, or a compact tactical platform, the Tacfire BU-308-10 offers a convenient and cost-effective solution.
Why Choose the Tacfire BU-308-10 .308 Built Upper?
The Tacfire BU-308-10 provides a complete upper receiver package that saves time and effort during the build process. Instead of sourcing and assembling individual components, this built upper arrives ready to mount onto a compatible .308 lower receiver. The 10-inch barrel length makes it ideal for creating a maneuverable .308 platform while still delivering the powerful ballistics of the .308 Winchester cartridge. The included bolt carrier group is properly headspaced and tested for reliable function. This upper is an attractive option for both first-time builders and experienced gunsmiths who want a dependable, pre-assembled .308 upper without the hassle of individual part selection and installation.
Key Features of the Tacfire BU-308-10 10" .308 Built Upper
- 10-Inch Barrel – Compact length ideal for maneuverability and close to mid-range applications
- Complete BCG Included – Factory-installed bolt carrier group for immediate function
- Charging Handle Included – Comes fully assembled and ready to install
- .308 Winchester / 7.62x51 NATO – Chambered in the powerful and versatile .308 cartridge
- Free Float Handguard – Provides accessory mounting options and improved accuracy
- AR-10 Compatible – Designed to work with standard DPMS-pattern .308 lower receivers
- Hard Anodized Finish – Durable black finish for corrosion resistance
- Ready-to-Install – Saves time by arriving fully assembled
Performance and Handling
The Tacfire BU-308-10 delivers the stopping power and terminal performance that the .308 Winchester cartridge is known for in a compact package. The 10-inch barrel makes this upper significantly more maneuverable than traditional 16" or 18" .308 rifles, making it well-suited for home defense, vehicle use, or situations where a shorter overall length is desired. Despite the shorter barrel, the .308 Winchester still provides excellent energy and penetration at typical defensive and tactical distances.
The included bolt carrier group is properly fitted and headspaced, helping ensure reliable feeding, extraction, and overall function. The free-float handguard allows for the mounting of lights, lasers, vertical grips, and other accessories without interfering with barrel harmonics. This built upper is an efficient way to complete a .308 AR-10 style rifle quickly and affordably. Whether you're building a compact .308 pistol or a short-barreled rifle (where legally permitted), the Tacfire BU-308-10 offers a practical and powerful solution for your next project.
Technical Specifications
| Product Name | Tacfire .308 Built Upper |
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| Model Number | BU-308-10 |
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| Caliber | .308 Winchester / 7.62x51 NATO |
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| Barrel Length | 10 inches |
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| BCG | Included |
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| Charging Handle | Included |
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| Handguard | Free Float M-LOK or Similar |
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| Finish | Hard Anodized Black |
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| Compatibility | DPMS Pattern AR-10 / .308 Lower Receivers |
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| UPC | 729205567674 |
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| Best For | Compact .308 Builds, Home Defense, Tactical Use |
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| Key Benefit | Complete 10" .308 upper receiver assembly with BCG included |
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Build your compact .308 rifle faster with a complete upper assembly.
Tacfire BU-308-10 10" .308 Win Built Upper with BCG – Ready for your next project.
The Tacfire BU-308-10 10" .308 Win Built Upper with BCG is a complete upper receiver assembly for .308 Winchester AR-10 style rifles. The model number BU-308-10 and UPC 729205567674 identify this specific configuration. Firearm parts and accessories are subject to all applicable federal, state, and local laws. Always ensure full compliance with all regulations before purchasing or assembling this product. This product is intended for lawful use only by qualified individuals.
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