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
- Anodized Red Finish
- .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
- 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)
- 15″ Length
- Anodized Red Finish
- US Made
- 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
- T6 Aluminum Body
- 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″
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Fraser –
Having recently added the AR-15 Stripped Billet Upper Receiver & 15” AIR-LOK Series M-LOK Compression Handguard Combo Set (Gen 2) in anodized red from guntecusa.com, I have to say, it’s a fantastic upgrade for any AR-15 builder or enthusiast looking to combine style with solid performance. The quality of the billet upper receiver is immediately noticeable; it feels incredibly sturdy and precisely machined, with a smooth anodized finish that not only looks sharp but also provides excellent durability against the elements.
The anodized red color truly stands out, adding a bold, custom look that sets my rifle apart from the crowd. The machining details are sharp, and the fitment on my lower receiver was perfect—no wobble or looseness, which speaks volumes about guntec’s manufacturing standards. The lightweight design of the billet upper makes handling effortless, especially for extended shooting sessions.
The AIR-LOK Series M-LOK Compression Handguard is a standout feature in this combo. It installs effortlessly—no tools required—and feels incredibly solid once mounted. The M-LOK slots are well-placed, offering ample options for mounting accessories without feeling overcrowded. The design allows for a secure fit that doesn’t compromise stability, even during prolonged usage. Its lightweight yet robust construction ensures I can add accessories like lights or grips without concern.
What makes this set particularly appealing is its blend of aesthetics and function. The anodized red adds that custom, aggressive look I wanted, but it hasn’t compromised any of the quality or reliability. From the crisp finish to the tight tolerances, this combo set speaks to being built to last—a crucial factor for serious shooters or collectors.
Overall, the AR-15 Stripped Billet Upper Receiver & 15” AIR-LOK Series M-LOK Compression Handguard Combo Set (Gen 2) in red is a solid investment if you’re aiming to customize your build with high-quality, American-made components. It offers excellent value for the price, especially considering the craftsmanship involved. Whether you’re upgrading an existing rifle or building from scratch, this combo truly delivers in style, strength, and functionality. A soft recommendation for anyone serious about their AR platform — it’s a design that meets both form and function.