MCX XM7
The [b]SIG MCX[/b] is a family of selective fire [[gun]]s designed and manufactured by [[SIG Sauer]]. The civilian legal models are available in semi-auto only. SIG designed the upper receiver to be compatible with standard [[AR-15]] and [[M16]] lower receivers with the help of an adapter.

This tag applies to all the prominent variants, such the original SIG MCX [[assault rifle]], the second generation SIG MCX Virtus, the short-barrelled SIG MCX Rattler, and the multi-caliber SIG MCX Spear (that can be 7.62mm NATO [[battle rifle]]).

h4. See also

* [[SIG MCX (Girls' Frontline)]]
* [[SIG MPX]]
* [[List of Weapons]]

h4. External links

* "Wikipedia: SIG MCX":https://en.wikipedia.org/wiki/SIG_MCX
sig mcx