Primary Weapons Systems MK111 Mod 1-M, Upper Receiver, 7.62x39, 11.85 in Barrel, Anodized Finish, Black, MLOK Handguard, Fits AR-15 M111UF01-1F

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 the fully forged upper and lower receivers" the MK1 MOD 1-M is a no-nonsense tool for when you need a high value option that is relentless and unstoppable.

Operating System: PWS Long Stroke Piston System, 3 setting Adjustable Gas Regulator

Caliber: .223 Wylde

Barrel Length: 11.85"

Gas System Length: Carbine

Barrel Twist Rate: 1:8

Muzzle Velocity: 2741 fps

Muzzle Device: PWS Triad 556

Upper Receiver: PWS Proprietary Piston Upper, T6 7075 Forged, Anodized

Handguard: PWS M-Lok 11.05" Handguard (1.7" width, 2.25" height)

Charging Handle: Radian Raptor Ambidextrous Charging Handle

Barrel Length:	11.85"
Description:	MLOK
Finish:	Matte
Fit:	AR-15
Caliber:	7.62MM
Manufacturer:	Primary Weapons Systems
Manufacturer part #:	M111UF01-1F
Model:	MK111
Model **:	Mod 1
Type:	Upper
Sub Category:	Complete Upper Receivers
Color:	Black