Description
Primary Weapons Systems MK116 MOD 2-M Upper Receiver in 7.62×39
Elevate your AR-15 or compatible rifle with the Primary Weapons Systems MK116 MOD 2-M upper receiver assembly, chambered in the powerful 7.62×39 cartridge. Engineered for durability and performance, this complete upper combines advanced engineering with rugged construction to deliver exceptional reliability in any condition. Whether you’re a hunter pursuing medium game, a sport shooter seeking consistent accuracy, or a tactical user requiring dependable operation, the MK116 MOD 2-M is designed to exceed expectations.

Key Features and Benefits
- Long-Stroke Piston System: Unlike direct impingement systems, the PWS long-stroke piston reduces fouling in the receiver, enhances reliability with various ammunition types, and minimizes felt recoil for faster follow-up shots.
- 7.62×39 Chambering: Chambered in 7.62×39, this upper delivers substantial stopping power and penetration, making it ideal for hunting deer, hogs, and other medium-sized game, as well as effective for defensive scenarios.
- MOD 2-M Configuration: The MOD 2-M variant includes a mid-length gas system and enhanced barrel profile for improved balance and heat dissipation, ensuring consistent performance during extended shooting sessions.
- Complete Assembly: This upper comes fully assembled with a barrel, bolt carrier group, handguard, and charging handle, saving you time and effort—simply attach it to your AR-15 lower receiver to start shooting.
- Durable Construction: Built with high-quality materials, including a 4150 chrome-moly steel barrel and hard-coat anodized aluminum receiver, it withstands harsh environments and heavy use without compromising function.

Why Choose This Upper Receiver?
Based on expertise in firearms engineering, the PWS MK116 MOD 2-M stands out for its innovative design. The long-stroke piston system not only boosts reliability but also reduces maintenance, as carbon buildup is directed away from critical components. This makes it an excellent choice for shooters who value low-maintenance operation and consistent performance, whether in the field or on the range. The 7.62×39 caliber offers a cost-effective alternative to .300 Blackout or 5.56mm, with readily available ammunition that doesn’t sacrifice power.
Specifications and Compatibility
This upper is compatible with standard AR-15 lower receivers, ensuring easy integration into your existing setup. It features a 16-inch barrel with a 1:10 twist rate, optimized for stabilizing a wide range of 7.62×39 bullet weights. The handguard provides ample space for accessories like optics, lights, and grips, enhancing versatility for various applications. For more details on AR platform components, explore our Americans Gun Shop selection.
FAQ: Why Buy from Americans Gun Shop?
- Expertise and Trust: With years of experience in the firearms industry, we provide authoritative advice and ensure all products meet high standards of quality and safety.
- Customer-Focused Service: We offer personalized support, fast shipping, and a satisfaction guarantee to make your shopping experience seamless and reliable.
- Wide Selection: From uppers to complete rifles, we stock a diverse range of firearms and accessories to meet your needs, backed by competitive pricing.

Invest in the Primary Weapons Systems MK116 MOD 2-M upper receiver to enhance your rifle’s capabilities with proven technology and robust construction. Order today from Americans Gun Shop for a reliable upgrade that delivers power, precision, and performance.
| Model | MK116 MOD 2-M |
| Caliber | 7.62×39 |
| Barrel Length | 16 inches |
| Twist Rate | 1:10 |
| Gas System | Long-Stroke Piston, Mid-Length |
| Receiver Material | Hard-Coat Anodized Aluminum |
| Barrel Material | 4150 Chrome-Moly Steel |
| Compatibility | Standard AR-15 Lower Receivers |
| Included Components | Barrel, Bolt Carrier Group, Handguard, Charging Handle |





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