Primary Weapons Systems MK111 Mod 1-M Upper .223 Wylde 11.85in Long Stroke Piston FRC 2-Port

Description

Product Overview

The Primary Weapons Systems MK111 Mod 1-M Upper is a compact .223 Wylde long-stroke piston build designed for shooters who want dependable function with reduced fouling and adjustable gas control. Built around an 11.85in free-float MLOK handguard configuration, this upper is suppressor optimized and includes the PWS FRC 2-port compensator for improved recoil and muzzle rise control.

Key Features

• PWS long-stroke piston system for reliable operation and reduced fouling with adjustable gas settings
• 11.85in .223 Wylde barrel built for accuracy and dependable performance
• Free-float MLOK handguard for comfortable handling and flexible accessory mounting
• Forward assist integration to support reliable chambering in adverse conditions
• Suppressor optimized configuration with the PWS FRC 2-port compensator to minimize back pressure and gas blowback
• Radian Raptor ambidextrous charging handle for smooth operation for left- and right-handed shooters

If you’re assembling a compact, suppressor-friendly AR-pattern rifle with a piston-driven reliability focus, the MK111 Mod 1-M Upper is built to deliver.