Description
Primary Weapons Systems MK111 MOD 2-M Upper Receiver in .223 Wylde
Elevate your AR-15 platform with the Primary Weapons Systems MK111 MOD 2-M upper receiver, engineered for superior performance and reliability. Chambered in .223 Wylde, this upper assembly combines precision machining with advanced piston-driven technology to deliver unmatched accuracy and reduced maintenance. Whether you’re a competitive shooter, hunter, or tactical enthusiast, the MK111 MOD 2-M offers a robust solution for enhancing your firearm’s capabilities.
Why Choose the PWS MK111 MOD 2-M Upper?
The MK111 MOD 2-M stands out with its innovative design and high-quality construction. Key features include:
- Piston-Driven System: Unlike direct impingement systems, the piston-driven mechanism reduces carbon fouling in the receiver, leading to cleaner operation and enhanced reliability in adverse conditions.
- .223 Wylde Chamber: Optimized for both .223 Remington and 5.56 NATO ammunition, this chamber provides improved accuracy and versatility, making it ideal for precision shooting and tactical applications.
- Durable Construction: Machined from 7075-T6 aluminum with a hard-coat anodized finish, this upper receiver is built to withstand rigorous use while maintaining lightweight properties.
- Enhanced Ergonomics: Features include an ambidextrous bolt catch and a forward assist for smooth operation, catering to both right and left-handed shooters.

Specifications and Performance
Designed for accuracy and durability, the MK111 MOD 2-M upper includes a 11.85-inch barrel with a 1:8 twist rate, perfect for stabilizing a wide range of bullet weights. The adjustable gas block allows for fine-tuning to match your ammunition and shooting preferences, ensuring consistent cycling and reduced recoil. With its M-LOK compatible handguard, you can easily attach accessories like lights, lasers, and grips to customize your setup.

Benefits for Shooters
- Improved Accuracy: The .223 Wylde chamber and precision barrel deliver tight groupings, making it suitable for target shooting and hunting.
- Reduced Maintenance: The piston system minimizes carbon buildup, extending cleaning intervals and enhancing long-term reliability.
- Versatile Compatibility: Fits standard AR-15 lower receivers, allowing for easy integration into your existing firearm setup.
- Tactical Advantage: Ideal for law enforcement, military, and home defense scenarios due to its rugged design and consistent performance.

Why Buy from Americans Gun Shop?
At Americans Gun Shop, we are committed to providing top-quality firearms and accessories with exceptional customer service. Our team of experts ensures that every product, like the PWS MK111 MOD 2-M upper, meets high standards for performance and reliability. We offer competitive pricing, fast shipping, and knowledgeable support to help you make informed decisions for your shooting needs.
FAQ: Why Buy from Us?
- Expertise: With years of experience in the firearms industry, we provide accurate product information and recommendations based on real-world testing.
- Trustworthiness: We source products directly from reputable manufacturers like Primary Weapons Systems, ensuring authenticity and quality.
- Customer Support: Our dedicated team is available to answer questions and assist with any issues, from selection to after-sales service.
- Secure Shopping: We prioritize your safety with secure payment processing and discreet packaging for all orders.
Upgrade your AR-15 today with the PWS MK111 MOD 2-M upper receiver from Americans Gun Shop. Experience the difference in precision and reliability that this advanced upper assembly brings to your shooting adventures.
| Model | MK111 MOD 2-M |
| Caliber | .223 Wylde |
| Barrel Length | 11.85 inches |
| Twist Rate | 1:8 |
| Operating System | Piston-Driven |
| Material | 7075-T6 Aluminum |
| Finish | Hard-Coat Anodized |
| Handguard | M-LOK Compatible |
| Compatibility | Standard AR-15 Lower Receivers |





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