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.
Receiver
- US Made
- 1913 Picatinny Rail Flat Top
- Anodized Black Finish
- Slim Profile Shell Deflector
- .223 / 5.56 Cal
- Manufactured From Solid Block Of Billet Aluminum
- Will Match Up With Any Brand Lower Receiver
- T6 6061 Billet
- M4 Feed Ramp
- Accepts Mil-Spec Ejection Port Door Kit And Forward Assist Kit (Not Included)
Handguard
- US Made
- Air-Lok Series
- Total Weight Including Barrel Nut Is 10 Oz!!
- Rail System Slides Over Barrel Nut, And Is Compressed Down Against Receiver With 4 Screws
- Heavy Duty
- T6 Aluminum Body
- M-Lok Slots On 3 Sides Of Handguard (Bottom, Left & Right Sides)
- Tight Fit Up Against Receiver, Which Allows For A Monolithic Top Rail
- Internal Diameter: 1.32″
- 15″ Length
- Compression Lock Down Design
- Proprietary Barrel Nut Included
- Triangle / Diamond Skeletonized Cuts Throughout Handguard To Reduce Weight
- Machined QD Swivel Socket On Rear End Of Handguard (Right & Left Side)
- Anodized Black Finish
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Joseph Kai –
The AR-15 Stripped Billet Upper Receiver & 15” AIR LOK Series M-LOK Compression Handguard Combo Set in anodized black really stands out when it comes to quality and craftsmanship. Having put this set through its paces during a recent build, I can say that the precision machining and attention to detail on the billet upper are impressive. The finish is smooth, with a consistent anodized coating that not only looks sleek but also adds to the durability—something I value highly in my rifles.
The AIR LOK Series M-LOK handguard design is simply superb. The 15-inch length provides excellent coverage, offering versatile mounting options for accessories without sacrificing stability or weight balance. The M-LOK slots are well-machined and secure, making attachment of lights, grips, or bipods straightforward and sturdy. I particularly appreciated how lightweight it feels, despite its sturdy construction—an important factor for long shooting sessions or competitions.
Condition-wise, the set arrived perfect—no scratches or blemishes, which speaks volumes about the manufacturing standards. The anodized black finish complements my other components, giving the rifle a cohesive, professional look. The combo set is also straightforward to install, with clean interfaces that fit tightly without any wobbling.
What truly makes this combo stand out is its American-made quality. When building firearms, knowing that each component is crafted domestically adds a layer of confidence in its reliability. Since I primarily use my AR-15 for both range shooting and home defense, I look for accessories that are robust and dependable. This set checks all those boxes.
Considering the overall value, I believe it offers great bang for the buck—particularly because it comes as a combo, saving some costs compared to buying each piece separately. The quality you receive far exceeds the price, especially when you appreciate finely machined billet components and thoughtfully designed handguards.
In summary, I’d recommend this combo to fellow enthusiasts who want a high-quality, American-made upgrade for their AR-15 build. Whether you’re customizing for performance or aesthetics, it’s a reliable choice that delivers excellent fit, finish, and functionality.