The MK1 MOD 1-M line" revamped for 2018" features the PWS long stroke piston system. Internally" this line offers the tried and true system that PWS owners have grown to know and love. Featuring a free-float MLOK handguard" forward assist controls" and a more true to mil-spec design" the MK1 MOD 1-M line is a go-to for not only civilians" but also Law Enforcement. With fully forged receivers" the MK1 MOD 1-M is a no-nonsense tool for when you need a high value option that is relentless and unstoppable.
Features:
- MLOK handguard
- Long stroke piston system
Specifications:
- Barrel Length: 11.85"
- Caliber: 223 Wylde
- Color: Black
- Finish: Anodized
- Fit: AR-15
- Manufacturer Part #: 18-M111UA0B
- Model: MK1
- Subcategory: Complete Upper Receivers
- Type: Upper