Sig Sauer MCX LTAW Suppressor / SBR Combo

Sig Sauer MCX LTAW Suppressor / SBR Combo

Inspired by the elite Low Visibility Assault Weapon (LVAW) concept and built upon SIG Sauer's battle-proven MCX operating platform, the SIG Sauer MCX-LTAW Suppressor/SBR Combo (SKU: RMCX-300B-6B-LTAW-SBR-SQX) in .300 Blackout represents the pinnacle of compact, factory-suppressed weapons design. Engineered from the ground up for maximum maneuverability, rapid target engagement, and extreme flash and sound signature reduction, this complete factory package integrates a short 6.75-inch cold hammer-forged carbon steel barrel with an ultra-fast 1:5" twist rate, ideal for stabilizing heavy subsonic and supersonic .300 BLK loads alike.

Encasing the match barrel is a suppressor-compliant handguard equipped with an LVAW-inspired internal heat shield, allowing long strings of fire without transferring barrel heat to the operator's support hand. The package features a factory-installed SIG SQX direct-thread Inconel suppressor, a factory-mounted SIG ROMEO4T-PRO mil-spec red dot sight with NV override controls, a two-stage match duo trigger, and a full Arisaka LTAW accessory suite (including a light mount, handstop, indexer, and QD sling socket). Outfitted with a push-button folding KM skeleton stock that collapses overall length down to just 23.5 inches, fully ambidextrous controls, and a 30-round Magpul PMAG Gen M3 300 BLK magazine, the MCX-LTAW is a mission-ready tactical workhorse.

Features

LVAW-Inspired Factory Suppressed Platform:
Purpose-built .300 Blackout SBR/suppressor combination engineered for low-visibility, short-range tactical ops where maximum signature suppression and tight maneuverability are required.

Factory-Installed SIG SQX Inconel Suppressor:
Direct-thread (5/8"-24) suppressor constructed with a heavy-duty Inconel steel core, high-temp Black Cerakote finish, textured grip surface, and accessory-compatible endcap optimized for .300 BLK pressure curves.

Suppressor-Compliant Handguard w/ Internal Heat Shield:
Oversized handguard completely encloses the suppressor body while an integrated LVAW-style heat shield isolates high thermal loads from the operator's hand.

Factory-Mounted SIG ROMEO4T-PRO Red Dot Optic:
Includes SIG’s professional-grade ROMEO4T-PRO red dot featuring a Quad Ballistic Circle-Dot reticle, top-mounted NV override controls, MOTAC motion activation, and a 50,000-hour battery life.

6.75" 1:5" Twist Cold Hammer-Forged Barrel:
Match-grade carbon steel target barrel treated with a durable manganese phosphate finish; features an ultra-fast 1:5" twist rate for complete projectile stabilization of heavy subsonic rounds.

Folding Skeletonized KM Stock:
Features a push-button unlocking KM skeleton stock that folds flush along the left receiver wall, reducing storage footprint to an ultra-compact 23.5 inches.

Complete Arisaka LTAW Accessory Package:
Out of the box, the handguard comes pre-fitted with premium Arisaka components including a low-profile light mount, handstop, indexer, and QD sling attachment point.

Milspec Two-Stage Match Duo Trigger & Ambi Controls:
Delivers a crisp, repeatable match trigger break, coupled with fully ambidextrous dual bolt releases, safety selectors, charging handles, and magazine catches.

Specifications