Many "peak rifles" are based on the design of the AR-18. A SIG MCX-SPEAR LT bolt and recoil spring assembly (l.), compared to a CZ Bren 2 (center) and an original ArmaLite AR-180 (r.). As with ...

When the SIG MCX rifle came out in 2015 it was a game changer that drastically raised the goal post for its competitors. It’s modular design quickly made it a favorite among gun owners who ...

Based on feedback from Special Operations unites worldwide, SIG Sauer has enhanced its original MCX adaptive rifle to create the MCX VIRTUS in 5.56 NATO and 300 BLK. With the rifle’s ability to ...

SIG Sauer’s new MCX-SPEAR fires bullets with twice the kinetic energy of those from an AR-15. That means double the horrifying force that mangled the victims of the mass shooting in Uvalde ...

Twenty grand may sound like a lot — especially considering the retail price is listed at $7,999 — but that’s not an unheard-of selling price for the Sig Sauer MCX Spear, if you can find it ...

On Monday night, officials clarified that the rifle Omar Mateen used in the shooting was not an AR-15, but a Sig Sauer MCX rifle. While aesthetically similar to and just as lethal as an AR-15 ...

U.S. Special Operations Command intends to transform some of its standard-issue M4 carbines into Sig Sauer MCX Rattler personal defense weapons, apparently satisfying the command’s year-long ...

The Sig Sauer MCX was born as rifle caliber replacement for the Heckler & Koch MP5SD submachine gun. Why? Well, because they could. Submachine guns developed prior to the MCX were hamstrung by ...