The choice of professionals worldwide, the MPX K offers a closed bolt gas piston system that is ultra reliable and durable. As with all MPX, the K is modular allowing for multiple handguard and barrel lengths and is ready to go for suppressor use. The K now features the SIG PCB folding brace which allows the K to fold into an ultra-compact size and be operable in the folded position. The K also features an updated M-Lok handguard which is available as accessories in multiple lengths for suppressor coverage. Finally, the K is upgraded with the ultra smooth, ultra-fast Timney Trigger. Co-designed by Timney and SIG, this trigger offers the Timney performance you have come to expect we with the ultimate reliability to make it survive the punishment of a sub gun platform. If you are looking for the ultimate modular sub gun, look no further than the MPX K from SIG SAUER.
Out of stock
Weight | 9 lbs |
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Dimensions | 46 × 11 × 5 in |
UPC | 798681671762 |
MPN | PMPX-4B-9-NB |
Height: 1.9″
Fits any MIL-STD-1913 rail system.
KAC’s iconic Ribbed Rail Panels have seen use all over the globe on US military M4 Carbines. The lightweight polymer panels are ribbed for an enhanced grip, and help insulate the support hand from barrel heat. While originally designed for use on the KAC M4 RIS and M4 RAS rails, these panels are also compatible with many other railed handguards.
Material: Polymer
Ribs: 9
Length: 5.48″
Color: Black, FDE
URX 4 The URX 4 is a continuous top-rail system that utilizes the Keymod mounting brackets developed by Vltor and Noveske. This rail system is built stronger and more stable than previous designs due to the absence of a removable bottom rail. The modular layout allows an end user to fully customize exactly where to place accessories without the use of specialized tools, small parts, or additional forces applied to the barrel. The URX 4 is currently available for 5.56 rifles in 8.5″, 10″, 10.75″, 13″, and 14.5″ lengths, and is equipped with Knight’s unique IBN mounting configuration. The idea was to create a more modular, and thus more serviceable, rail system that still maintains its strength and stiffness. Th IBN system torques the rail onto the weapon and allows the rail to act as the barrel nut.
This design was developed to increase stabilization and provide a simpler solution that requires less specialized tools to install and maintain. A full array of modular accessories, iron sights, and panel kits utilizing the Keymod mounting brackets have been developed specifically to accompany this rail system. With the introduction of the URX 4, Knight’s Armament Company demonstrates its continuing determination to intelligently design effective products. It is not suggested to use this rail with a 14.5″ or shorter barrel unless using a muzzle device such as the AAC flash hider which can be installed from the end with a tool.
Picatinny rail scope cap allows for attaching accessory sighting systems.
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