The Primary Weapons Systems PWS Mk111 Mod 2-M Upper 338 ARC 11.85 LS FRC is a dedicated upper receiver assembly designed for shooters who want to run the efficient 338 ARC cartridge on a proven PWS platform. Built around the MK1 Mod 2-M architecture, this upper focuses on smooth operation, modern ergonomics, and compatibility with your preferred lower receiver and accessories.
This upper is ideal for enthusiasts looking to configure a versatile rifle for range work, training, or hunting where the 338 ARC’s ballistics can shine. Pair it with a quality lower, optic, and muzzle device to tailor the setup to your specific needs while keeping the system reliable and easy to maintain. Primary Weapons Systems is known for thoughtful engineering and consistent craftsmanship, making this upper a solid foundation for a refined AR build.
- Manufacturer: Primary Weapons
- Model: PWS Mk111 Mod 2-M Upper 338 ARC 11.85 LS FRC
- Finish: Black
- Category: Assembled Upper Receiver
- Caliber: .338 ARC
- Barrel Length: 11.85"
- Operating System: Long-Stroke Piston
| __Firearm Type | Rifle, SBR, Tactical Pistol |
| __Model | MK111 MOD 2-M |
| __Capacity | NA |
| __Caliber | NA |
| __Barrel Length | NA |
| __Optic Footprint | NA |
| __Action | NA |
