SIG SAUER MCX
Product Information & Specs
Seller Description For This Firearm
SIG Sauer MCX 5.56 NATO – Modular Suppressed-Ready Platform
SIG Sauer MCX chambered in 5.56 NATO, one of the most advanced and adaptable rifle platforms on the market. Built around a short-stroke gas piston system, the MCX is engineered for reliability, reduced fouling, and exceptional performance—especially in suppressed setups.
Designed with modern shooters in mind, the MCX eliminates the traditional buffer tube system, allowing for a folding stock configuration and a more compact overall footprint without sacrificing function.
Features:
Chambered in 5.56×45mm NATO
Short-stroke gas piston system (cleaner and more reliable than DI systems)
Fully ambidextrous controls (safety, mag release, charging handle)
Folding stock design (no buffer tube required)
M-LOK handguard with full-length top rail
Compatible with standard STANAG AR-15 magazines
Designed for suppressed or unsuppressed use
Modular barrel system for future configuration changes
Why the MCX stands out:
The MCX was built from the ground up for modern tactical use—especially short barrels and suppressors. It runs cleaner than traditional AR platforms, handles abuse well, and offers true modularity in a compact, field-ready package.
Whether for range use, duty setup, or a high-end personal defense rifle, the MCX delivers premium performance and cutting-edge engineering in one platform.
| UPC | ECOM00593227 |
| Action | SEMI AUTOMATIC |
| Barrel Length | 18" BARREL |
| Caliber | 5.56X45MM NATO |
| Capacity | 20 ROUNDS |
| Finish | BLACK |
Seller Q&A
WARNING
Why Buy from Guns.com?
PEACE OF MIND
Shopping at Guns.com gives you the backing of a company that is committed to your satisfaction. And unlike our competitors, it extends beyond the buying process. We get the FFL from your store – others make you find it, copy it, and fax it. We have a generous return policy, and handle everything – you don’t have to go back to the store. And our Rangemasters are here to answer all your questions about our products or process. We're bringing a level of service to the online gun buying experience that is unheard of.
WE SUPPORT LOCAL GUN STORES
Many online gun sales actually take away from your local community. Instead of buying a gun that’s on your local store’s shelf, most retailers drop ship it from a warehouse in another state. At Guns.com, if an FFL is part of our network, we sell THEIR guns first whenever possible. That way, we’re helping small businesses in your community AND if they have it in stock, you can pick your gun up IMMEDIATELY – it’s how business should be done.
WE KEEP IT SIMPLE
Most everything can be easily bought online these days. But for some reason, buying a gun online can be complicated. Most websites are poorly organized, don’t tell you a lot about what you’re buying, and leave you on your own to figure out what you want. Guns.com is built to be simple – easily organized products, useful descriptions from experts, and support to guide you to the right choice. Spend your time enjoying the gun you want, not getting frustrated with a complex website that makes gun buying hard.
Reviews
Latest Reviews
-
Glock 20 Gen5 Review: Predictable and Potent 10mm
The Glock 20 Gen5 is an optic-ready, ambidextrous-friendly spin on a straightforward and reliable design that continues to handle the best that 10mm has to offer.
Read More -
Ruger 250th Anniversary 10/22 Rifle: Celebrate American Liberty
Ruger’s affordable 10/22 celebrating America’s 250th shoots well and looks even better with its engraved American walnut stock. For the money, this stainless-steel rifle is a functional collectible that will last and is worthy of being passed down.
Read More -
Colt King Cobra Target .22 Review: A Classy, Competent Wheel Gun
Part of Colt’s revamped snake series lineup, the King Cobra Target is a good-looking .22 rimfire wheel gun built to feel like a centerfire revolver.
Read More -
SIG’s Full-Size 1911-X Blends Classic Design with Contemporary Feel
The SIG Sauer 1911-X full-size is a great example of a modern production 1911 done correctly. It blends traditional styling and handling with SIG’s modern design and practical upgrades.
Read More
