Buy MK111 MOD 2-M Upper 7.62×39

Discover the PWS MK111 MOD 2-M Upper 7.62×39 — a premium complete upper receiver designed for shooters who want hard-hitting 7.62×39 performance with modern ergonomics and superior reliability.

This upper features an 11.85″ barrel chambered in 7.62×39 and is powered by Primary Weapons Systems’ renowned long-stroke piston operating system. It delivers cleaner operation, reduced fouling, softer recoil, and better suppressor performance than traditional direct impingement uppers. The MK111 MOD 2-M upper pairs perfectly with MOD 2-M ambidextrous lowers, making it ideal for building a compact, powerful, and highly controllable 7.62×39 AR pistol, SBR, or short rifle.

Key Features & Benefits

• Long-Stroke Piston System: Exceptional reliability with minimal carbon buildup and gas blowback. Includes a 3-position adjustable gas regulator, perfect for suppressed and unsuppressed use.
• 11.85″ 7.62×39 Barrel: Precision barrel with 1:10 twist rate optimized for both steel and brass 7.62×39 ammunition. Offers excellent accuracy and terminal performance in a compact package.
• MOD 2-M Forged Upper: Lightweight forged 7075-T6 aluminum receiver with modern styling and no forward assist for reduced weight.
• 11.05″ Full M-LOK Handguard: Slim, free-floating design provides maximum accessory mounting flexibility and superior heat dissipation.
• Suppressor Optimized: Low back-pressure piston system makes it an outstanding host for 7.62 suppressors.
• Premium Components: Enhanced PWS bolt carrier group, Radian Raptor compatible charging handle, and threaded muzzle (5/8×24) ready for your choice of muzzle device.
• Ambidextrous Ready: Fully compatible with MOD 2-M ambidextrous lowers for intuitive left or right-handed operation.

Why Choose the PWS MK111 MOD 2-M 7.62×39 Upper?

This upper is perfect for builders seeking the power and affordability of 7.62×39 in a modern, reliable piston platform. The long-stroke piston design runs cleaner and more reliably than standard AR uppers, especially with steel-cased ammo. Manufactured in the USA, it offers soft shooting characteristics, fast follow-up shots, and outstanding durability for home defense, range use, or tactical applications.

Technical Specifications

• Caliber: 7.62×39
• Barrel Length: 11.85″ with 1:10 Twist
• Gas System: Carbine-Length Long-Stroke Piston with 3-Position Adjustable Regulator
• Handguard: 11.05″ Full M-LOK Free-Float
• Upper Receiver: Forged 7075-T6 MK111 MOD 2-M
• Muzzle Threads: 5/8×24
• Operating System: PWS Long-Stroke Piston
• Finish: Hardcoat Anodized Black
• Compatibility: Designed for MK1 MOD 2-M ambidextrous lowers

Build hard-hitting 7.62×39 performance today. Add the PWS MK111 MOD 2-M Upper 7.62×39 to your cart and experience premium piston reliability.