PWS (Primary Weapons Systems) MK2 7.62 x 51 (.308)
Piston-driven, 16.1" Barrel
The MK2 series, developed by Primary Weapons Systems, and based on
the SR25 platform, has been built from the ground up as a short barreled
rifle for those requiring the venerable 7.62x51 in a compact package.
Utilizing our proven long stroke piston system, the MK2 series greatly
reduces fouling in the action of the weapon making it as reliable as the
AK47 that it was designed after.
The origins of the MK2
series began with the fascination in the simplicity and reliability of
the AK47 combined with a deep-rooted appreciation for the ergonomics of
the SR25 platform. Having a significant understanding of the
deficiencies in the direct gas impingement operating system found on
conventional AR10/SR25-style weapons, PWS developed the MK2 series with
the professional operator in mind.
product improvements have been made over both the direct impingement
operating system and previous offerings of piston-driven operating
systems. Our product improvements have addressed reliability and
performance issues as well as reduced carrier tilt, cam pin wear and
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.
The 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 MK2
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 available.