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
- 5.56 Ejection Door Assembly
- 5.56 Complete Lower Parts Kit
- AR-15 MPM Stock Assembly (GT-MPM)
- 16″ 5.56mm 1:7 Twist M4 4150 Barrel
- Anodized Black Finish On Aluminum Parts
- Everything Included, Except The Lower
- 5.56 Upper Receiver
- 5.56 Charging Handle
- 15″ AIR-LOK Series M-LOK Handguard With Barrel Nut & Hardware (GT-15ALC)
- Carbine Length Gas Tube
- 1/2 X 28 Crush Washer
- Kit Does Not Come Assembled
- 5.56 Complete BCG
- Forward Assist Asssembly
- AR-15 “TAP” Tactical Assault Pistol Grip (ARGRIP-TAP)
- Steel Low Pro .750 Gas Block
- 1/2 X 28 A2 Birdcage (Nitride Finish)
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James Daniel –
Wow, I recently had the opportunity to put together a build using the AR-15 5.56 Cal Complete Rifle Kit #3 (No Lower), and I must say, it exceeded my expectations in every way. The quality of the components is evident right from the unboxing — sturdy, well-machined, and designed with precision in mind. The kit strikes a great balance between affordability and high-end features, making it an excellent choice for both seasoned shooters and enthusiasts building their first rifle.
The barrel and upper receiver feel robust, with tight tolerances that ensure reliable performance. The finish on all parts, especially the anodized upper, looks sleek and resists scratches or wear over time. Something I genuinely appreciated was the attention to detail in the assembly parts — the gas system, handguard, and bolt carrier group all fit perfectly without any wobble or looseness. It’s clear that these are American-made accessories crafted with pride, which adds confidence in durability and long-term use.
Design-wise, the kit offers great versatility. The free-float handguard is spacious enough to accommodate various accessories, and the lightweight construction makes handling smooth and manageable. Given that this is a no-lower kit, it gives me the flexibility to choose my preferred lower receiver, customizing the build exactly to my needs. Combining this kit with my existing lower was straightforward, thanks to clear instructions and quality components.
Value-wise, this kit is hard to beat. It provides top-tier parts at a competitive price point, especially considering the quality and craftsmanship involved. For anyone looking to assemble a reliable AR-15 for range days, home defense, or even tactical applications, this kit offers a solid foundation. Plus, purchasing it from guntecusa.com ensures you’re getting genuine American-made accessories, which is a significant plus for supporting domestic manufacturing.
Overall, I’d recommend the AR-15 5.56 Cal Complete Rifle Kit #3 (No Lower) for anyone serious about building a dependable rifle with a focus on quality and value. It’s a well-thought-out kit that makes the assembly process enjoyable and results in a firearm that performs reliably and looks fantastic. If you’re looking to invest in a versatile, American-made AR component kit, this one is definitely worth considering.
Bennie Brown –
Wow, I recently had the opportunity to put together a build using the AR-15 5.56 Cal Complete Rifle Kit #3 (No Lower), and I must say, it exceeded my expectations in every way. The quality of the components is evident right from the unboxing — sturdy, well-machined, and designed with precision in mind. The kit strikes a great balance between affordability and high-end features, making it an excellent choice for both seasoned shooters and enthusiasts building their first rifle.
The barrel and upper receiver feel robust, with tight tolerances that ensure reliable performance. The finish on all parts, especially the anodized upper, looks sleek and resists scratches or wear over time. Something I genuinely appreciated was the attention to detail in the assembly parts — the gas system, handguard, and bolt carrier group all fit perfectly without any wobble or looseness. It’s clear that these are American-made accessories crafted with pride, which adds confidence in durability and long-term use.
Design-wise, the kit offers great versatility. The free-float handguard is spacious enough to accommodate various accessories, and the lightweight construction makes handling smooth and manageable. Given that this is a no-lower kit, it gives me the flexibility to choose my preferred lower receiver, customizing the build exactly to my needs. Combining this kit with my existing lower was straightforward, thanks to clear instructions and quality components.
Value-wise, this kit is hard to beat. It provides top-tier parts at a competitive price point, especially considering the quality and craftsmanship involved. For anyone looking to assemble a reliable AR-15 for range days, home defense, or even tactical applications, this kit offers a solid foundation. Plus, purchasing it from guntecusa.com ensures you’re getting genuine American-made accessories, which is a significant plus for supporting domestic manufacturing.
Overall, I’d recommend the AR-15 5.56 Cal Complete Rifle Kit #3 (No Lower) for anyone serious about building a dependable rifle with a focus on quality and value. It’s a well-thought-out kit that makes the assembly process enjoyable and results in a firearm that performs reliably and looks fantastic. If you’re looking to invest in a versatile, American-made AR component kit, this one is definitely worth considering.