The Future Arrives: The Civilian MCX SPEAR and the Military's NGSW M7
In April 2022, the U.S. Army announced its Next Generation Squad Weapon (NGSW) decision: the Sig Sauer XM7 rifle and XM250 automatic rifle, chambered in .277 SIG FURY. After more than a decade of testing, this was the future of American military small arms. The civilian version is the MCX SPEAR. The .277 SIG FURY is a hybrid-case cartridge (brass/steel) that launches 135-grain projectiles at 3,000 feet per second from a 13-inch barrel. That velocity and terminal performance exceed 5.56 NATO at equivalent distances, making the SPEAR a genuine leap forward in platform capability.
Why This Matters Now
The MCX SPEAR represents forward momentum in military rifle design. Collectors and forward-thinking shooters are acquiring these now—while production is available and the cartridge ecosystem is stabilizing. The .277 SIG FURY will eventually transition to wider adoption as the Army phases out 5.56 across its forces. Getting in early means you're ahead of the curve, not chasing scarcity.
From an ergonomics standpoint, the SPEAR is refined. Sig's pedigree with the MCX platform means the controls, charging handle, and fire control group are intuitive. The platform is modular—upper and lower receivers interchange with other MCX components. Suppressors designed for the SPEAR integrate seamlessly.
The Ammunition Ecosystem
.277 SIG FURY ammunition is available from major manufacturers. Quality factory loads are reliable and consistent. As civilian demand grows and military adoption ramps up, ammunition availability and pricing will stabilize. Early adopters may pay a premium today, but they're investing in what the American military has already selected as the next generation.
The MCX SPEAR is for collectors who understand that military rifle evolution is unfolding in real time. This is where American small arms are headed. Owning one today means you're not just building a collection—you're documenting the future of military firearms.
See Also: Modern Military Rifles, Suppressor Options
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THIS IS A SERIALIZED FIREARM. It must ship to a Federal Firearms License holder. No civilian exceptions.
Buying and shipping through Charlie’s is easy, but there is some information you need to know. Only a federally licensed firearms dealer may receive a firearm or federally regulated serialized item (like a receiver or suppressor). We cannot ship these items directly to you. Please follow these steps to process your transaction:
1) Check your state laws to make sure the federally regulated item you want to purchase is legal in your state. Your FFL dealer should be able to give you all of the necessary information regarding your state specific laws. But, if we ship to your FFL, and there is a legal issue, we cannot accept a return. So please make sure that you know and follow your local and state laws.
2) A quick google search will show you what Federal Firearms Licensed (FFL) dealers are in your area. When you are ready to purchase, contact the FFL dealer you would like to use and get their shipping address. During the check-out, put YOUR address in the “billing” section and the FFL DEALER’S address in the “shipping” section. If you don’t know your FFLs address, that’s okay. You can send the information later.
3) After check out, make sure to contact your FFL dealer to ensure they will receive your shipment for you (most do this for a small fee, but you should always double check).
4) Have your dealer send us a copy of their FFL to FFL@CharliesCustomClones.com. Charlie’s does not reach to your FFL (MAKE THEM EARN THEIR FEE!!!)
5) Be patient! In order to ensure we remain compliant with all federal laws, our compliance department is kept separate from our sales and operations team. Please allow a few days for our compliance officer to verify all of your dealer’s documents and ensure all federal laws are being observed. You should hear from our compliance department within 3-4 business days. If not, feel free to reach out for a status update.
That’s it! We try to make this process as simple as possible for our customers, but if you are unfamiliar the process or have any other questions, please visit our How to Buy a Firearm page for more details.
California and New York residents please, click here. The process may be different due to state specific laws.
NOTE: The free shipping option does not apply to full rifles, unless purchased with a riflescope. If you choose free shipping at check-out, we will bill you for shipping later.
Sig Sauer
Sig Sauer
Sig Sauer