Luth-Ar115847190
Luth Ar 308 Upper Receiver$151.04
Availability: In Stock
Building an AR-15 from the ground up starts with a solid foundation—and a Luth-AR upper receiver assembly with charging handle gives you exactly that. This fully assembled upper is ready to mate with your lower receiver, eliminating guesswork on machining tolerances and fitment. It's designed in .223/5.56 NATO chambering and comes equipped with everything you need to get to the range or field: the charging handle is included, so you won't be hunting for the right fit.
The Luth-AR upper is built from 7075-T6 aluminum forgings, a premium alloy that balances strength with weight savings. The hardcoat anodized black finish is tough enough to handle the wear and tear of regular shooting—scratches and scuffs won't compromise the protective coating the way cheaper finishes do. The A3 flattop receiver profile accepts standard Picatinny-mounted optics, from budget red dots to premium glass. You get a full complement of controls: forward assist, shell deflector, and ejection port cover all in place. The M4-type feed ramp is a proven geometry for reliable feeding across a wide range of ammunition.
Whether you're assembling your first AR or building a dedicated upper for a different caliber or role down the line, this Luth-AR assembly shortens the build timeline and eliminates the need for specialized machining knowledge. The 12-position Picatinny rail offers flexibility for mounting optics, backups, lights, or accessory rails—you set the configuration for your mission.
| Platform | AR-15 |
| Chambering | .223/5.56 NATO |
| Receiver Profile | A3 Flattop |
| Material | 7075-T6 Aluminum Forging |
| Finish | Hardcoat Anodized Black |
| Feed Ramp Type | M4-Type |
| Rail Configuration | 12-Position Picatinny |
| Included Components | Charging Handle, Forward Assist, Shell Deflector, Ejection Port Cover |
This upper receiver assembly is built on the AR-15 platform and will work with standard AR-15 lowers. Because it comes fully assembled with the charging handle included, you can pair it directly to a stripped or completed lower receiver and begin your build.
The A3 flattop receiver features a 12-position Picatinny rail that accepts any Picatinny-compatible optic—rifle scopes, red dots, prism sights, magnifiers, and backup flip-up sights can all be mounted using standard Picatinny rings or direct-mount interfaces.
The charging handle is included with the assembly; the specs provided do not detail removal or replacement options. Contact Bosque Outdoors if you have specific questions about future modifications.
7075-T6 aluminum forgings are aerospace-grade material engineered for high strength and durability. Compared to lower-grade alloys, 7075-T6 resists deformation and stress better—critical in a receiver that houses the bolt carrier and experiences repeated cycling under pressure. The hardcoat anodized finish adds a protective layer that resists wear and corrosion.
SKU: 121685877 • Width: 6in • Height: 2.5in • Depth: 12in • Weight: 0.63oz
Availability: In Stock
Building an AR-15 from the ground up starts with a solid foundation—and a Luth-AR upper receiver assembly with charging handle gives you exactly that. This fully assembled upper is ready to mate with your lower receiver, eliminating guesswork on machining tolerances and fitment. It's designed in .223/5.56 NATO chambering and comes equipped with everything you need to get to the range or field: the charging handle is included, so you won't be hunting for the right fit.
The Luth-AR upper is built from 7075-T6 aluminum forgings, a premium alloy that balances strength with weight savings. The hardcoat anodized black finish is tough enough to handle the wear and tear of regular shooting—scratches and scuffs won't compromise the protective coating the way cheaper finishes do. The A3 flattop receiver profile accepts standard Picatinny-mounted optics, from budget red dots to premium glass. You get a full complement of controls: forward assist, shell deflector, and ejection port cover all in place. The M4-type feed ramp is a proven geometry for reliable feeding across a wide range of ammunition.
Whether you're assembling your first AR or building a dedicated upper for a different caliber or role down the line, this Luth-AR assembly shortens the build timeline and eliminates the need for specialized machining knowledge. The 12-position Picatinny rail offers flexibility for mounting optics, backups, lights, or accessory rails—you set the configuration for your mission.
| Platform | AR-15 |
| Chambering | .223/5.56 NATO |
| Receiver Profile | A3 Flattop |
| Material | 7075-T6 Aluminum Forging |
| Finish | Hardcoat Anodized Black |
| Feed Ramp Type | M4-Type |
| Rail Configuration | 12-Position Picatinny |
| Included Components | Charging Handle, Forward Assist, Shell Deflector, Ejection Port Cover |
This upper receiver assembly is built on the AR-15 platform and will work with standard AR-15 lowers. Because it comes fully assembled with the charging handle included, you can pair it directly to a stripped or completed lower receiver and begin your build.
The A3 flattop receiver features a 12-position Picatinny rail that accepts any Picatinny-compatible optic—rifle scopes, red dots, prism sights, magnifiers, and backup flip-up sights can all be mounted using standard Picatinny rings or direct-mount interfaces.
The charging handle is included with the assembly; the specs provided do not detail removal or replacement options. Contact Bosque Outdoors if you have specific questions about future modifications.
7075-T6 aluminum forgings are aerospace-grade material engineered for high strength and durability. Compared to lower-grade alloys, 7075-T6 resists deformation and stress better—critical in a receiver that houses the bolt carrier and experiences repeated cycling under pressure. The hardcoat anodized finish adds a protective layer that resists wear and corrosion.
SKU: 121685877 • Width: 6in • Height: 2.5in • Depth: 12in • Weight: 0.63oz