New Product Highlight: Sig Sauer MCX-LTAW
SIg Sauer is reviving one of the brand’s coolest prototypes with the new MCX-LTAW. Here’s what we know so far!
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About a decade ago, we all had to watch from the sidelines as Sig Sauer competed for a Joint Special Operations Command contract with the Low-Visibility Assault Weapon, or LVAW. In the near future, you’ll be able to get your hands on something very similar: the Sig Sauer MCX-LTAW.
It’s a mashup of some new parts and some existing components. Let’s break it all down so you can add it to your wishlist.
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Sig Sauer MCX-LTAW Specs & Features
Specs
- Caliber: .300 Blk
- Action: Semi-automatic, piston
- Capacity: 30+1
- Barrel Length: 6.75”
- Overall Length: 31” (22.3” collapsed)
- Weight: 7 lbs
- Country of Origin: USA
Features
- Available as a pistol, SBR, or suppressed SBR
- Suppressor-compliant handguard comes standard
- Fully ambidextrous controls
Alphanumeric naming can be tricky (why not just call it the Black Mamba and go all-in on the vibes?), so here’s what all those letters mean:
- MCX: Sig’s rifle-caliber modular platform characterized by a short-stroke piston and dual recoil springs.
- LT: Ambidextrous controls.
- AW: A throwback to the LVAW.
So, as you can see, this is basically a Gucci’d-up SIg Sauer MCX-LT. In addition to the ambidextrous controls, the MCX-LTAW features an old-school angled pistol grip, two-stage match trigger, and a suppressor-friendly handguard for that ultra-cool tucked look.
The MCX-LTAW is chambered for .300 Blk and comes with one third-gen Magpul magazine.
There are three versions to choose from. The most accessible are a pistol with a brace and faux suppressor, and an SBR with a stock and faux suppressor. The big dog is an SBR with a stock, a Sig Sauer SQX suppressor, a Romeo4T-Pro red dot, and an Arisaka handstop, indexer, light mount, and QD mount.
Our friends over at TFB got some range time with the Sig Sauer MCX-LTAW – check it out!
According to Sig reps at Sig Next 2026, we can expect pricing to be around $2,700 for the pistol and SBR, and roughly $3,700 for the suppressed SBR.
What do you think of the new Sig Sauer MCX-LTAW? Let us know below. Looking to build something similar? Check out our guide to the Best AR-15 Suppressors!