Guntec USA has been manufacturing AR-15, AR-308 and AR 9mm accessories since 1989. Our goal is to distribute excellent quality, at an economical value.
- 5.56 Cal
- 1913 Picatinny Rail Flat Top-DPMS Low Spec Rail Height
- MIL-A-8625 TYPE III Anodizing
- Slim Profile Shell Deflector
- Everything Needed To Complete 5.56/.223 Cal Upper
- US Made In Scottsdale, Arizona
- Manufactured From Solid Block Of Billet Aluminum
- Will Match Up With Any Brand Lower Receiver
- Complete Kit Includes 5.56 Upper Receiver, 5.56 Complete BCG, 5.56 Ejection Door Assembly
- T6 6061 Billet
- M4 Feed Ramp
- Accepts Mil-Spec Ejection Port Door Kit And Forward Assist Kit (Included)
- 5.56 Charging Handle, & Forward Assist Asssembly
Hayes –
The AR-15 5.56 Cal Complete Billet Upper Receiver Combo Kit from guntecusa.com truly stands out in terms of quality and craftsmanship. Having handled a variety of upper receivers over the years, I can confidently say this one offers excellent machining precision and durability. The billet aluminum feels solid and substantial in hand, giving a real sense of reliability that’s crucial for any serious build.
The finish on the upper is smooth and anodized, showing attention to detail that’s often hard to find at this price point. It’s clear that this kit is designed with both function and aesthetics in mind, offering a sleek, modern look that complements any AR-15 build. The fitment was flawless, with tight tolerances ensuring easy installation without the need for any fitting work. It’s clear that this is an American-made product, crafted with pride and a focus on long-term performance.
One of the features I appreciated was how well the kit integrates with other components. The design and machining of the upper complement standard parts, making assembly straightforward. Plus, having the complete combo kit saves time and hassle—everything from the upper receiver to the necessary hardware was included and of high quality.
The weight feels balanced, and the overall feel of the upper enhances the rifle’s handling. For those who value precision shooting or want a reliable platform for tactical or competitive use, this kit offers excellent value. It’s also reassuring to know it’s built to withstand rigorous use, whether in the field or the range.
Overall, I’d recommend this billet upper receiver combo kit for anyone looking to build a robust, American-made AR-15. It’s a well-crafted, reliable accessory that adds both value and performance to your firearm. Given the solid construction, detailed finish, and smooth operation, this kit is a worthwhile investment for serious shooters and collectors alike.
Johanna –
The AR-15 5.56 Cal Complete Billet Upper Receiver Combo Kit from guntecusa.com truly stands out in terms of quality and craftsmanship. Having handled a variety of upper receivers over the years, I can confidently say this one offers excellent machining precision and durability. The billet aluminum feels solid and substantial in hand, giving a real sense of reliability that’s crucial for any serious build.
The finish on the upper is smooth and anodized, showing attention to detail that’s often hard to find at this price point. It’s clear that this kit is designed with both function and aesthetics in mind, offering a sleek, modern look that complements any AR-15 build. The fitment was flawless, with tight tolerances ensuring easy installation without the need for any fitting work. It’s clear that this is an American-made product, crafted with pride and a focus on long-term performance.
One of the features I appreciated was how well the kit integrates with other components. The design and machining of the upper complement standard parts, making assembly straightforward. Plus, having the complete combo kit saves time and hassle—everything from the upper receiver to the necessary hardware was included and of high quality.
The weight feels balanced, and the overall feel of the upper enhances the rifle’s handling. For those who value precision shooting or want a reliable platform for tactical or competitive use, this kit offers excellent value. It’s also reassuring to know it’s built to withstand rigorous use, whether in the field or the range.
Overall, I’d recommend this billet upper receiver combo kit for anyone looking to build a robust, American-made AR-15. It’s a well-crafted, reliable accessory that adds both value and performance to your firearm. Given the solid construction, detailed finish, and smooth operation, this kit is a worthwhile investment for serious shooters and collectors alike.