The SIG MCX-SPEAR LT lineup will include pistols (not shown), short-barreled rifles (SBRs) and rifles in 5.56 NATO, 7.62x39 mm and .300 Blackout. Photo courtesy of SIG Sauer.

The SIG MCX is, depending on who you ask of course, arguably the rifle that set the gold standard for all modular rifles that have come after it. Almost everything on thisrifle is completely ...

A Sig Sauer MCX rifle can be seen on display at the top left of this photo as NRA gun enthusiasts view the Sig Sauer display at the National Rifle Association's annual meetings & exhibits show in ...

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.

The contract with Sig Sauer, managed by U.S. Army Contracting Command (ACC) and released on Feb. 1, detailed SOCOM’s plan to purchase 10 MCX Personal Defense Weapons (PDW) conversion kits that ...

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, ...

Sig Sauer's MCX Spear is designed to punch through body armor at range. Selling to the general public concerns gun regulation advocates. The Army’s new rifle is now for sale to the general ...

The key difference, however, between the standard AR-15 series of rifles and the MCX is the operating system used to mechanically propel the bullet from the gun and cycle the next round to be fired.

The select-fire MCX has a full-auto rate of fire of 800 to 900 rounds per minute, and an effective range of 1,650 feet (500 ...