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
- Will Match Up With Any Brand Lower Receiver
- .223 / 5.56 Cal
- Manufactured From Solid Block Of Billet Aluminum
- Accepts Mil-Spec Ejection Port Door Kit And Forward Assist Kit (Not Included)
- T6 6061 Billet
- M4 Feed Ramp
- Slim Profile Shell Deflector
Handguard
- US Made
- 15″ Gen 2 Air Lok Compression
- 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)
- T6 Aluminum Body
- Air-Lok Series
- Total Weight Including Barrel Nut Is 9.7 Oz!!
- Rail System Slides Over Barrel Nut, And Is Compressed Down Against Receiver With 4 Screws
- Heavy Duty
- Compression Lock Down Design
- M-Lok Slots On 4 Sides Of Handguard (Top, Bottom, Left & Right Sides)
- Tight Fit Up Against Receiver, Which Allows For A Monolithic Top Rail
- Internal Diameter: 1.32″
- 15″ Length
 (Anodized Black)){kind=link}
Samuel Pol –
Having recently added the AR-15 Stripped Billet Upper Receiver & 15” AIR-LOK Series M-LOK Compression Handguard Combo Set (Gen 2) in anodized black from guntecusa.com, I have to say it’s a solid choice for anyone building or upgrading their AR-15. The quality of the billet upper is impressive—smooth machining, tight tolerances, and a durable anodized finish that looks sharp and feels tough enough to withstand rigorous use. It’s evident that high standards were followed during manufacturing, ensuring that this piece not only performs well but also maintains its aesthetic appeal over time.
The handguard complements the upper perfectly. The 15-inch length provides excellent coverage and stabilization, making it ideal for all kinds of accessories—lights, grips, lasers—thanks to the M-LOK system. The AIR-LOK series, especially the Gen 2 model, offers a secure and easy attachment, reducing wobble and ensuring accessories stay firmly in place even during extended shooting sessions. The design is sleek, with clean lines and a matte black anodized finish that resists scratches and corrosion. I was particularly pleased with how lightweight yet sturdy it feels, which makes handling my rifle even more enjoyable.
The combo set offers great value, especially considering American-made craftsmanship. It’s refreshing to find accessories that meet industry standards and are produced domestically, which adds to their reliability. Installation was straightforward; the precision-machined upper and the handguard snapped into place without issues, and I appreciated that the set includes all necessary hardware—nothing was missing or required additional purchases.
For those who want a performance-oriented upgrade or a clean, professional look for their build, this combo set delivers. It’s suitable for both experienced enthusiasts and newcomers who want quality parts that will last. After several range sessions, I’ve noticed improved stability and a more comfortable shooting experience thanks to the well-designed handguard. Plus, it just looks fantastic on my build.
In conclusion, if you’re looking for a dependable, high-quality upper receiver and handguard combo from a reputable American manufacturer, this AR-15 set is definitely worth considering. It balances performance, aesthetics, and value nicely. While it might be a touch more expensive than some budget options, the durability and craftsmanship justify the investment. Highly recommended for anyone serious about customizing their AR-15 with premium accessories.