Eclipsing All That Came Before It
Two Point Gas System: The two-position adjustable gas system allows the user to increase or decrease gas as needed depending on ammunition, use with a suppressor or adverse conditions.
Short Stroke Piston: Reduce recoil and fouling with the gas-operated, short-stroke piston stystem.
Rotating Bolt System: A fully locked and closed rotating bolt system provides maximum safety.
AR-Style, Ambidextrous Control: No retraining required. The SIG MCX features a familiar, AR-style ambidextrous selector, bolt release, magazine release and charging handle.
The MCX is the first true mission-adaptable weapon system. Adapt it as your needs and the conditions change.
Quick-Change Barrel: Quickly and easily adjust barrel length from 16″ to 9″.
Upper Receiver: The continuous-to-rail upper receiver features an integral M1913 rail at 12 o’clock and a free-float barrel system and is backwards compatible with any mil-spec AR lower, allowing you to upgrade your existing AR platform to the SIG MCX.
SBX Stabilizing Brace: With a folding knuckle, the SBX improves the single-handed shooting performance of your SIG MCX Pistol. Also compatible with the SB15.
KeyMod Handguards: The MCX offers a long or short aluminum handguard. Also available in carbon fiber and suppressor compatible width.
Silent by design, the MCX also accepts a broad array of accessories to make it ready for any environment.
1913 Top Rail: Easily add sights, optics, lasers and other accessories.
SIG SAUER suppressors: The SIG MCX is built to operate with next-generation SIG SAUER suppressors, offering leading reliability and signature reduction under heavy firing schedules.
Stock Options: Maximize performance while conserving space with telescoping or folding stocks. Pistol configuration also available for the ultimate in compactness.