Here is a quick look at the SIG SAUER submission for the US Army Compact Semi-Automatic Sniper System. Based on the MCX platform, it is considered an MCX-MR for Mid-Range.
This rifle met all requirements for CSASS including weight, length, and suppression. It can be side charged or via the more traditional, rear charging handle.
As you can see, it is equipped with a folding stock.
While the commercial MCX is now equipped with a self regulating gas valve, the CSASS model is a two position version that is marked on the rail.
It is a full auto gun as well.
Internally, there is another difference than the standard MCX. Rather than dual springs the MCX-MR uses a single operating spring. However, high wear points such as the steel cam path inset.
Additionally, they’ve incorporated replaceable dual charging handle pins.
The MCX, regardless of class, also offers a replaceable Deflector/ Forward Assist Housing. This includes the 7.62 gun!
Another high wear area that has a replaceable steel insert is the feed ramp insert just below the ejection port.
Finally, as we mentioned during AUSA, the barrels incorporate the new tapered flash suppressor and suppressor mount.
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