MPN: M116UB0B / 2M116UB0B
Primary Weapons Systems brings the PWS MK116 300 Blackout Upper to the market for those of us who are ready to take a giant leap forward with a quality 300 Blackout piston system upper. The 16.1-inch barreled version of the PWS 300 Blackout piston upper allows for operation in a great number of varying operating environments and proves itself lethal out to the 500-meter mark with a variety of ammunition types. It has proven itself reliable in the field and is sure to impress those who are new to the advanced design of PWS’ long piston upper systems.
When engineers at PWS went to the drawing board to create the MK1 piston driven upper, the creative minds at Primary Weapons Systems sought to marry the legendary reliability of the AK-47 with the ergonomic advances and flexibility of the AR platform. If you try a PWS MK116 you’ll find that they have succeeded in creating an extra-reliable long stroke piston operated upper that adapts well to chambering in 300 Blackout and the variety of operating conditions.
Fewer moving parts and less susceptibility to the effects of fouling allows the PWS MK1 upper to work long after impingement systems have succumbed to wear, broken parts and the inevitable failures caused by poor maintenance. The MK1 upper relies on a single unit operating component created by connecting the Bolt Carrier Group to a Floating Piston with an Operating Rod. This creates a single moving unit from three parts that would be interdependent in function yet able to fail individually in previous generations of uppers. The reliable function of this system is less vulnerable to the effects of soot and other forms of fouling than its predecessors too. That frees you up to do the real work in the field rather than keeping your hands tied cleaning a firearm that isn’t happy unless it’s enslaved you in a cycle of eternal maintenance issues.
You have the option of choosing a more traditional looking PWS MK1 Mod 1 upper, which is a little heavier than the PWS MK1 Mod 2 and retains the forward assist that’s been left off of the Mod 2. The PWS MK1 Mod 1 is no slouch, with advanced features that leave competitors in the dust without taking the traditional AR fan too far from his comfort zone. If you like the confidence you get from the ritual of tapping that forward assist we're more than happy to oblige and wrap it up in a package with a piston operated 300 Blackout upper featuring free floated handguards with QD attachments and ample M-LOK slots.
If you're ready to move even further ahead of the pack, let us suggest the PWS MK1 Mod 2. It's all that and exclusive PWS PicMOD® rail that accepts both Picatinny and M-LOK accessories. The receiver itself has been put on a diet, shedding excess ounces of material to the bite of the CNC while retaining its strength. The forward assist is also a thing of the past on the PWS MK1 Mod 2. Given the reliability of the long piston system, we're confident you just won't miss it.
Because It's Time. Strength Through Evolution. The Primary Weapons Systems MK116 300 Blackout.
NOTE: For the protection of our customers and various safety and legal liability reasons, we do not accept returns on ammunition, firearms, barrels, or any product that contains a barrel. Defective firearms, barrels, any product that contains a barrel (i.e., complete AR-15 uppers, complete pistol slides, etc.) and ammunition must be returned to the original manufacturer for warranty service. You can have peace of mind that all firearms, barrels, complete uppers, and ammunition that we sell are brand new from the manufacturer, and have never been used, installed, or modified.