Primary Weapons MK116 MoD 2-M 7.62x39mm 16.1Inch Complete Upper

The Primary Weapons Systems MOD2 MK116 7.62x39 upper receiver is a lightweight, high-performance AR platform upgrade featuring a long-stroke piston system for improved reliability and reduced fouling. Built around a 16.1-inch 41V50 barrel and equipped with a PWS FRC compensator, this upper is designed for controlled recoil and enhanced shooting performance. The system integrates an M-LOK handguard with Picatinny sections, an adjustable gas block, and premium components such as the Radian Raptor LT charging handle and FNC LIFE HD bolt carrier. Engineered for durability and precision, it is compatible with mil-spec AR-15 lowers and optimized for modern tactical and sporting use.

Product Details

• Manufacturer: Primary Weapons Systems (PWS)
• Model: MOD2 MK116 762x39 Upper
• Caliber: 7.62x39mm
• Barrel Length: 16.1 inches
• Barrel Material: 41V50 FNC LIFE HD steel
• Twist Rate: 1:10
• Thread Pitch: 5/8x24
• Weight: 4 lb 4 oz
• Compatibility: Mil-spec AR-15 lowers
• Magazine Recommendation: DuraMag AR15 magazines
• Gas System: Carbine-length long-stroke piston system
• Handguard: 15-inch M-LOK with integrated Picatinny sections
• Charging Handle: Radian Raptor LT
• Gas Block: 3-position adjustable
• Forward Assist: Not included (eliminated design)
• Warranty: Limited lifetime

Product Features

• Long-stroke piston system for enhanced reliability and reduced carbon fouling
• PWS FRC 2-port compensator for improved recoil control
• Compatible with Rearden suppressor mounting systems
• Lightweight forged upper receiver design
• Integrated M-LOK handguard with Picatinny accessory sections
• Eliminates forward assist for weight reduction and simplicity
• Adjustable gas system for tuning performance and suppressor use
• Premium FNC LIFE HD bolt carrier for durability
• Optimized for balance of accuracy, control, and reliability