Description
Primary Weapons MK118 MOD 1 Upper Receiver in 6MM ARC
Elevate your AR-15 platform with the Primary Weapons MK118 MOD 1 Upper Receiver Assembly chambered in 6MM ARC. Engineered for precision, durability, and versatility, this upper is ideal for hunters, competitive shooters, and tactical enthusiasts seeking enhanced performance. The 6MM ARC cartridge delivers superior ballistics with reduced recoil, making it perfect for medium to long-range engagements. Crafted with high-quality materials and advanced manufacturing techniques, the MK118 MOD 1 ensures reliability and accuracy in various conditions.
Key Features and Benefits
- 6MM ARC Chambering: Experience improved trajectory, wind resistance, and terminal performance compared to traditional 5.56 NATO, ideal for targets up to 1,000 yards.
- 416R Stainless Steel Barrel: Provides exceptional corrosion resistance and heat tolerance, maintaining accuracy over extended shooting sessions.
- MOD 1 Handguard: A lightweight, free-float design with M-LOK slots for easy attachment of accessories like optics, lights, and bipods.
- Enhanced Gas System: Optimized for reliable cycling with a wide range of ammunition, reducing malfunctions and ensuring smooth operation.
- Complete Assembly: Includes barrel, handguard, bolt carrier group, and charging handle—ready to install on your AR-15 lower receiver for quick upgrades.
Technical Specifications
The MK118 MOD 1 Upper is built to meet the demands of serious shooters. Its 16-inch barrel length balances maneuverability and velocity, while the 1:7.5 twist rate stabilizes heavy bullets for consistent accuracy. The upper is compatible with standard AR-15 components, allowing for easy customization. Whether you’re engaging in precision rifle matches or hunting game, this upper delivers the performance you need.
Why Choose the MK118 MOD 1 Upper?
This upper stands out due to its blend of innovation and practicality. The 6MM ARC caliber offers a significant advantage over older cartridges, providing flatter trajectories and higher energy retention. The MOD 1 handguard enhances ergonomics and cooling, while the robust construction ensures longevity. It’s a cost-effective way to transform your AR-15 into a versatile tool for multiple shooting disciplines.
FAQs: Why Buy from Americans Gun Shop?
- Expertise: Our team has extensive experience in firearms and accessories, offering personalized advice to help you make informed decisions.
- Quality Assurance: We source products from reputable manufacturers like Primary Weapons, ensuring you receive genuine, high-performance items.
- Customer Support: Enjoy dedicated assistance before and after your purchase, including installation tips and maintenance guidance.
- Secure Shopping: Our website, Americans Gun Shop, provides a safe, user-friendly platform with fast shipping and reliable service.
Upgrade your shooting experience today with the Primary Weapons MK118 MOD 1 Upper. Perfect for enhancing accuracy and versatility, it’s a smart investment for any firearm enthusiast. Check out our full selection of AR-15 uppers and accessories to complete your setup.



| Caliber | 6MM ARC |
| Barrel Material | 416R Stainless Steel |
| Barrel Length | 16 inches |
| Twist Rate | 1:7.5 |
| Handguard Type | MOD 1 Free-Float M-LOK |
| Gas System | Mid-Length |
| Compatibility | AR-15 Lower Receiver |
| Included Components | Barrel, Handguard, Bolt Carrier Group, Charging Handle |





Reviews
There are no reviews yet.