PRIMARY WEAPONS SYSTEMS (PWS) MK-114-556 PISTON-DRIVE RIFLE
5.56 X 45MM (.223)
MK1 series, developed by Primary Weapons Systems, is a significant
product improvement for the M4/M16-type carbines and rifles. Utilizing
our proven long stroke piston system, the MK1 series greatly reduces
fouling in the action of the weapon making it as reliable as the AK47
that it was designed after.
The MK1 series has
been used in Iraq and Afghanistan, and has gained wide popularity with
security personnel, law enforcement and civilians alike.
origins of the MK1 series began with the fascination in the simplicity
and reliability of the AK47 combined with a deep-rooted appreciation for
the ergonomics of the M4/M16 platform. Having a significant
understanding of the deficiencies in the direct gas impingement
operating system found on conventional M4/M16-style weapons, PWS
developed the MK1 series with the professional in mind.
improvements have been made over both the direct gas impingement
operating system and previous offerings of piston-driven operating
systems. The product improvements made by PWS have addressed reliability
and performance issues as well as reduced carrier tilt, cam pin wear
and carrier bounce. In addition, we have one of the lightest systems on
the market today!
An innovative hand guard
system utilizes a proprietary non-free float system that allows the end
user or unit armorer to replace individual rails as needed without
removing the barrel, barrel nut or even other rails. This system allows
the user to attach numerous Picatinny rail-mounted devices such as
sights, lights, and laser aiming devices.
PWS proprietary operating system utilizes an operating rod that is
attached to the carrier and a floating head piston that is attached to
the operating rod. The MK1 series is built to be a true combat carbine.
With no unnecessary gas adjustments and only one moving assembly, this
is the most rugged, simple and versatile piston operating system
features a pinned SM556 muzzle device that brings the overall length to
16.1" and is thus not considered a short barreled rifle.