PWS | MK111 MOD 2-M .223 Wylde Complete Upper - 11.85"



The Primary Weapon Systems MK111 Mod 2-M Complete AR-15 Upper Receiver is built to be more than just a standard AR15 complete upper. It features a 11.85” barrel chambered in .223 Wylde. However, what sets it apart is the 3 position adjustable long stroke gas piston system built for reliability with any ammunition type, suppressed or unsuppressed. The free float handguard has a cutout to easily reach the gas system for quick adjustments. Additionally, the handguard has M-LOK attachment slots and features picatinny rail segments at the front. The forged upper receiver features a slick side design without forward assist to reduce weight. This AR-15 complete upper receiver comes with a proprietary bolt carrier group and Radian Raptor ambidextrous charging handle.


  • 11.85" barrel
  • PWS M-LOK Handguard
  • Forged 7075 T6 Receiver
  • PWS Triad Compensator
  • Long Stroke Gas Piston
  • Radian Raptor-LT Ambi Charging Handle


  • Barrel Length: 16.1"
  • Gas Piston: Carbine
  • Barrel Twist: 1:8
  • Caliber: 223 Wylde
  • Handguard: 11" PWS M-Lok (1.7” width, 2.25” height)
  • Muzzle Device: PWS Triad 556
  • Finish: Type III Class 2 Hardcoat Anodized Finish