The MK111 MOD 1-M complete upper receiver group from Primary Weapons Systems is 3-position long stroke gas piston operated. The upper is forged from 7075 T6 with a forward assist. The Handguard has a Picatinny top rail and M-LOK slots at the 3, 6, and 9 o'clock positions.
Features:
- 11.85" barrel
- PWS M-LOK Handguard
- Forged 7075 T6 Receiver
- Forward Assist
- PWS Triad Compensator
- Long Stroke Gas Piston
- Radian Raptor-LT Ambi Charging Handle
Specifications:
- 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
