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
- T6 6061 Billet
- M4 Feed Ramp
- Slim Profile Shell Deflector
- 1913 Picatinny Rail Flat Top
- Will Match Up With Any Brand Lower Receiver
- Cerakote Flat Dark Earth 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)
Handguard:
- US Made
- Gen 2 Design
- 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, Air-Lok Series
- 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″
- 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
- Cerakote Flat Dark Earth Finish
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David –
The AR-15 Stripped Billet Upper Receiver & 15″ Air-LOK Series M-LOK Handguard Combo Set in Flat Dark Earth truly stands out for anyone serious about custom builds. From the moment it arrived, the quality was immediately apparent—solid, precisely machined billet aluminum with a smooth finish that speaks to American craftsmanship. The FDE color has a rich, durable look that complements a variety of firearm aesthetics, adding a touch of tactical appeal without feeling flashy.
The upper receiver is robust and well-constructed, fitting my build seamlessly without any wobble or play, which is often a concern with aftermarket parts. Its design is sleek, and the attention to detail, especially around the feed ramp and bolt carrier compatibility, suggests it was made with both form and function in mind. The machining process appears top-notch, resulting in a lightweight yet sturdy component that should stand up to some serious use.
Pairing it with the Air-LOK Series M-LOK Handguard has been a game-changer. The 15-inch length provides excellent coverage and allows for versatile accessory attachments. The M-LOK slots feel secure, and the smooth, snag-free installation made customizing my setup feel effortless. The air-LOC design enhances rigidity and heat dissipation, which I noticed during extended shooting sessions—no signs of warping or excess heat buildup.
What makes this combo particularly appealing is its value—American-made quality at a competitive price, especially when compared to similar high-end sets. The design respects the integrity of my AR platform, with a focus on durability and ease of use. Whether I’m building for precision shooting or general range fun, these components deliver both performance and aesthetic appeal.
Overall, this set has exceeded my expectations. The combination of design, craftsmanship, and practical features makes it a worthwhile investment for any AR-15 enthusiast. It’s a reliable upgrade that enhances both the look and functionality of a build. Definitely recommend for those seeking high-quality, American-made AR parts that combine form and function seamlessly.