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.
- All US Made
- 9mm Upper Receiver
- US 7″ Gen 2 AIR-LOK Series M-LOK Handguard With Barrel Nut & Hardware (GT-7ALC-G2)
- 1/2 X 36 Slim Line Flash Cone (CONE-FH-S-9)
- Kit Does Not Come Assembled
- 9mm Complete BCG
- 5.5″ 9mm 1:10 Twist Contour 4150 Barrel
- Anodized Black Finish On Aluminum Parts
- Complete Upper Kit Contains:
- Mil-Spec Charging Handle
- Crush Washer
 (AIR-LOK Handguard)){kind=link}
Carpenter –
I recently had the chance to assemble a new build using the AR-15 9mm Cal Complete Upper Kit (Gen 2) with the AIR-LOK handguard, and I have to say, it exceeded my expectations. The quality of this kit is immediately noticeable — from the robust construction to the precision-machined parts. It’s clear that American craftsmanship went into every component, making it a reliable upgrade for any AR-15 enthusiast.
The Gen 2 design offers some thoughtful upgrades, especially the AIR-LOK handguard, which provides a solid, wobble-free fit that’s perfect for quick handling and maintaining accuracy. The finish on the upper is smooth and durable, showing no signs of blemishes or rough edges, which speaks volumes about the manufacturing standards. The materials feel substantial without adding unnecessary weight, which is a real plus for extended shooting sessions.
Assembly was straightforward, thanks to the well-designed parts and clear instructions. The kit includes everything needed for a clean and secure fit, making it an excellent choice for both seasoned builders and those looking to get started in AR-15 customization. The compatibility with 9mm Cal makes it especially appealing for shooters interested in building a pistol caliber carbine, allowing for a more affordable shooting experience without sacrificing quality.
Functionally, the upper runs flawlessly — feeds polished rounds smoothly, and the tight tolerances ensure accuracy and consistency. The 9mm build has been reliable through multiple range sessions, with no jams or hiccups. Considering its American-made pedigree and the premium parts included, this kit provides fantastic value for the quality it delivers.
Whether you’re upgrading an existing platform or building something new, I’d recommend this kit for anyone seeking a durable, precise, and easy-to-assemble 9mm AR-15 upper. It’s a smart investment, especially for shooters who value quality, American manufacturing, and a sleek design that balances form and function.
Gilbert Payne –
I recently had the chance to assemble a new build using the AR-15 9mm Cal Complete Upper Kit (Gen 2) with the AIR-LOK handguard, and I have to say, it exceeded my expectations. The quality of this kit is immediately noticeable — from the robust construction to the precision-machined parts. It’s clear that American craftsmanship went into every component, making it a reliable upgrade for any AR-15 enthusiast.
The Gen 2 design offers some thoughtful upgrades, especially the AIR-LOK handguard, which provides a solid, wobble-free fit that’s perfect for quick handling and maintaining accuracy. The finish on the upper is smooth and durable, showing no signs of blemishes or rough edges, which speaks volumes about the manufacturing standards. The materials feel substantial without adding unnecessary weight, which is a real plus for extended shooting sessions.
Assembly was straightforward, thanks to the well-designed parts and clear instructions. The kit includes everything needed for a clean and secure fit, making it an excellent choice for both seasoned builders and those looking to get started in AR-15 customization. The compatibility with 9mm Cal makes it especially appealing for shooters interested in building a pistol caliber carbine, allowing for a more affordable shooting experience without sacrificing quality.
Functionally, the upper runs flawlessly — feeds polished rounds smoothly, and the tight tolerances ensure accuracy and consistency. The 9mm build has been reliable through multiple range sessions, with no jams or hiccups. Considering its American-made pedigree and the premium parts included, this kit provides fantastic value for the quality it delivers.
Whether you’re upgrading an existing platform or building something new, I’d recommend this kit for anyone seeking a durable, precise, and easy-to-assemble 9mm AR-15 upper. It’s a smart investment, especially for shooters who value quality, American manufacturing, and a sleek design that balances form and function.
Myron Coleman –
I recently had the chance to assemble a new build using the AR-15 9mm Cal Complete Upper Kit (Gen 2) with the AIR-LOK handguard, and I have to say, it exceeded my expectations. The quality of this kit is immediately noticeable — from the robust construction to the precision-machined parts. It’s clear that American craftsmanship went into every component, making it a reliable upgrade for any AR-15 enthusiast.
The Gen 2 design offers some thoughtful upgrades, especially the AIR-LOK handguard, which provides a solid, wobble-free fit that’s perfect for quick handling and maintaining accuracy. The finish on the upper is smooth and durable, showing no signs of blemishes or rough edges, which speaks volumes about the manufacturing standards. The materials feel substantial without adding unnecessary weight, which is a real plus for extended shooting sessions.
Assembly was straightforward, thanks to the well-designed parts and clear instructions. The kit includes everything needed for a clean and secure fit, making it an excellent choice for both seasoned builders and those looking to get started in AR-15 customization. The compatibility with 9mm Cal makes it especially appealing for shooters interested in building a pistol caliber carbine, allowing for a more affordable shooting experience without sacrificing quality.
Functionally, the upper runs flawlessly — feeds polished rounds smoothly, and the tight tolerances ensure accuracy and consistency. The 9mm build has been reliable through multiple range sessions, with no jams or hiccups. Considering its American-made pedigree and the premium parts included, this kit provides fantastic value for the quality it delivers.
Whether you’re upgrading an existing platform or building something new, I’d recommend this kit for anyone seeking a durable, precise, and easy-to-assemble 9mm AR-15 upper. It’s a smart investment, especially for shooters who value quality, American manufacturing, and a sleek design that balances form and function.
Phillip Murphy –
I recently had the chance to assemble a new build using the AR-15 9mm Cal Complete Upper Kit (Gen 2) with the AIR-LOK handguard, and I have to say, it exceeded my expectations. The quality of this kit is immediately noticeable — from the robust construction to the precision-machined parts. It’s clear that American craftsmanship went into every component, making it a reliable upgrade for any AR-15 enthusiast.
The Gen 2 design offers some thoughtful upgrades, especially the AIR-LOK handguard, which provides a solid, wobble-free fit that’s perfect for quick handling and maintaining accuracy. The finish on the upper is smooth and durable, showing no signs of blemishes or rough edges, which speaks volumes about the manufacturing standards. The materials feel substantial without adding unnecessary weight, which is a real plus for extended shooting sessions.
Assembly was straightforward, thanks to the well-designed parts and clear instructions. The kit includes everything needed for a clean and secure fit, making it an excellent choice for both seasoned builders and those looking to get started in AR-15 customization. The compatibility with 9mm Cal makes it especially appealing for shooters interested in building a pistol caliber carbine, allowing for a more affordable shooting experience without sacrificing quality.
Functionally, the upper runs flawlessly — feeds polished rounds smoothly, and the tight tolerances ensure accuracy and consistency. The 9mm build has been reliable through multiple range sessions, with no jams or hiccups. Considering its American-made pedigree and the premium parts included, this kit provides fantastic value for the quality it delivers.
Whether you’re upgrading an existing platform or building something new, I’d recommend this kit for anyone seeking a durable, precise, and easy-to-assemble 9mm AR-15 upper. It’s a smart investment, especially for shooters who value quality, American manufacturing, and a sleek design that balances form and function.