Primary Weapons Systems AR-15 MK1 Mod 1-M Upper Receiver Assembly 223 WYLDE M-LOK 11.85" Barrel

Primary Weapons Systems AR-15 MK1 Mod 1-M Upper Receiver Assembly 223 WYLDE M-LOK 11.85" Barrel

The MK111 MOD 1-M is perfect for shooters looking for a weapon with endless uses. Maintaining the shortest barrel length recommended for suppressed use, this compact upper receiver is one of the most popular from LE to heli-hunting. The MK111 upper receiver has an 11.85” barrel and a Triad556 Compensator.

The MK116 MOD 1-M upper receiver comes from one of the most popular firearms PWS manufactures. Being a go-to for Law Enforcement communities looking for non-NFA items, this rifle can be seen in-use by over 85 LE communities in the United States. The MK116 upper receiver has a 16.1” barrel with a FCS 556 Compensator.

Long stroke piston system
M-LOK handguards
Includes Radian Raptor Charging Handle
3-setting adjustable gas system
1:8 barrel twist rate
With the fully forged upper, the MK1 MOD 1-M is a no-nonsense tool for when you need a high value option that is relentless and unstoppable.

Cartridge: 223 Wylde
Finish: Anodized
Length: 11.85''
Make: AR-15
Make/Model: AR-15
Twist: 1-8


Manufacturer: Primary Weapons
Model: