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PWS MK116 MOD 1-M 7.62x39 Upper Receiver - 16.1" Piston Driven
The Primary Weapons Systems (PWS) MK116 MOD 1-M is a mission-ready upper receiver designed to bring extreme reliability to the 7.62x39mm AR platform. While the 7.62x39 round is notoriously hard on traditional direct impingement ARs, PWS utilizes its world-renowned Long Stroke Piston System to deliver AK-47 levels of durability with the precision and modularity of the AR-15. The MOD 1-M series is the workhorse of the PWS lineup, featuring a proven forged upper receiver with a functional forward assist.
The MK116 MOD 1-M features a 16.1" precision-rifled 41V50 Chrome Moly Vanadium steel barrel with an Isonite QPQ finish for superior wear resistance. The heart of this system is the 3-setting adjustable gas block, which allows you to tune the rifle for suppressed use or varied ammunition types with ease. Unlike the MOD 2-M, the MOD 1-M retains the traditional forward assist and is equipped with the M-LOK® free-float handguard, offering a lightweight and robust mounting surface for all your tactical accessories.
Each upper comes complete with a Radian Raptor ambidextrous charging handle and the highly effective PWS FSC 30 compensator, making it a drop-in, premium solution for your next 7.62x39 AR build.
Key Features
- Made in the USA: Proudly designed and manufactured in Boise, Idaho.
- Long Stroke Piston System: Significant reduction in fouling and carbon buildup in the receiver for maximum reliability.
- 3-Setting Adjustable Gas Block: Easily tune the gas system for suppressed, unsuppressed, and adverse conditions.
- Forged Upper Receiver: Includes a forward assist and shell deflector for a traditional duty-ready configuration.
- M-LOK® Handguard: Full-length free-float rail with M-LOK slots and a continuous top Picatinny rail.
- 41V50 Steel Barrel: 16.1" barrel with a 1:10 twist rate, optimized for the 7.62x39mm cartridge.
- Ambidextrous Charging Handle: Factory-equipped with a Radian Raptor for fast, reliable manipulation.
Product Specifications
- Brand: Primary Weapons Systems (PWS)
- Model: MK116 MOD 1-M
- Caliber: 7.62x39mm
- Barrel Length: 16.1"
- Twist Rate: 1:10
- Muzzle Device: PWS FSC 30 (5/8x24 Thread)
- Gas System: Long-Stroke Piston
- Upper Material: Forged 7075-T6 Aluminum
- Handguard: 15" M-LOK Rail
- Weight: 4.8 lbs
- MPN: MK1-M1U-762X39-16
- UPC: 811154033512
