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.
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- .308 Cal
- 1913 Picatinny Rail Flat Top-DPMS Low Spec Rail Height
- Will Match Up With Any Brand Of Standard Lower Receiver
- US Made In Scottsdale, Arizona
- Manufactured From Solid Block Of Billet Aluminum
- Slim Profile Shell Deflector
- T6 6061 Billet
- MIL-A-8625 TYPE III Anodizing
- Complete Kit Includes .308 Upper Receiver, .308 Ejection Door Assembly, .308 Charging Handle, & Forward Assist Asssembly
Mark Schwartz –
Having had the chance to handle the AR .308 Cal Complete Upper Receiver Kit, I can honestly say it’s a solid addition to any serious firearm collection. From the moment I unpacked it, the quality stood out—smooth machining, tight tolerances, and a robust feel that speaks to its durability. The anodized black finish not only adds a sleek, modern look but also offers excellent corrosion resistance, which is crucial for long-term reliability.
The kit includes everything needed for a complete build, including the charging handle, forward assist, and ejection door assembly—quality parts that fit seamlessly, ensuring smooth operation right out of the box. The anodizing process appears meticulous, with no blemishes or inconsistent spots, which is a testament to the manufacturing standards. I was especially impressed with how well everything aligned during installation; it clearly shows the product was built with precision.
For those looking to upgrade or build a new AR-10 platform, this kit offers great value. The components feel substantial and well-designed, capable of handling extended shooting sessions without issues. Handling the upper, it’s evident that this is a product made in the USA—craftsmanship that professional shooters and enthusiasts alike can appreciate.
The design is both functional and aesthetically pleasing, fitting perfectly onto my existing build without needing extra adjustments. The ejection door assembly operates smoothly, and the forward assist feels positive when pressed. The entire package’s quality reassures me that it can withstand rigorous shooting conditions, whether for practical shooting or collection purposes.
In terms of value, considering the quality of the components and the comprehensive nature of the kit, it’s competitively priced for an American-made product. For anyone serious about AR-15, AR-308, or AR-9mm platforms, this complete upper receiver kit is worth considering, especially if you value durability and precision.
All in all, this AR .308 Cal Complete Upper Receiver Kit offers a reliable, high-quality option that could stand the test of time. With proper maintenance, I expect it to perform flawlessly over the years. For those searching for an American-made upgrade or a solid foundation for their build, I’d recommend giving it a close look. It’s a dependable choice that combines craftsmanship, functionality, and good value—certainly a product I’d feel confident recommending to fellow enthusiasts and collectors alike.