UO Arms NT7: Civilian MP7 Clone in 4.6x30, Pistol or SBR

The UO Arms NT7 is a semi-automatic civilian clone of the Heckler & Koch MP7, chambered in 4.6x30mm and built in the United States. It uses the MP7's gas-operated action in a compact PDW-sized package: roughly 4.2 lbs, 15.5 inches collapsed, and 23 inches with the stock extended. For a platform that has been locked behind machine-gun law for 25 years, a domestically built, civilian-legal version is a genuine event.

The 4.6x30mm cartridge is what defines the MP7 and the NT7. HK engineered it as a high-velocity, low-mass round that defeats soft body armor at close range while producing minimal recoil. UO Arms built the NT7 around that same round rather than rechambering to 5.7x28mm, which keeps it a true MP7 pattern. That fidelity is the point: buyers in this niche want the actual MP7 layout and cartridge, not an approximation. For where the broader personal-defense-weapon class is headed and what you can build today, see our PDW pistol guide.

The NT7 is the Tommybuilt T7 under new ownership and a new name. Tom Bostic, who founded Tommy Built Tactical and spent years developing the T7, announced that he was winding down Tommy Built and partnering with UO Arms to reintroduce the platform as the NT7. Tommy Built Tactical no longer manufactures or sells firearms; UO Arms now carries the design forward and supports existing T7 owners with parts and service.

That history matters because the T7 earned a mixed reputation. It was the closest thing to a civilian MP7 you could buy, but it was a low-volume build with inconsistent production and long waits. UO Arms says the NT7 was reengineered to meet industry-standard quality, performance, and reliability, which is the specific weakness it needs to fix to succeed where the T7 struggled. The platform reintroduction kicked off at SHOT Show in Las Vegas, and UO Arms has since moved to a finalized launch with a public waitlist.

At launch, UO Arms is offering the NT7 as a pistol or a factory short-barreled rifle, in four colors: black, grey, RAL, and flat dark earth. Magazine options span 10, 20, 30, and 40 rounds, so buyers in restricted states can stay compliant while everyone else runs full-size mags. The factory SBR is the configuration that gets the NT7 closest to the compact MP7 silhouette, with the stock collapsing to that 15.5-inch overall length.

The headline accessory is a HUXWRX flow-through suppressor offered alongside the gun. Flow-through cans route gas forward instead of trapping and reversing it, which cuts back-pressure and the gas blowback that makes short, high-pressure hosts unpleasant to shoot suppressed. On a compact 4.6x30mm PDW held close to the face, that design choice matters more than raw decibel numbers. If you are new to buying a can, our how to buy a suppressor guide walks through the Form 4, the $0 tax, and current eForm wait times, and the suppressor buying guide ranks cans by host and use case.

UO Arms is a Dallas-based firearms manufacturer founded by security, military, and industry veterans, led by CEO Steven Young. The company positions the NT7 for both civilian buyers and military and law enforcement customers, pitching it as a body-armor-defeating personal defense weapon in a package small enough for vehicle crews and confined spaces.

What separates UO Arms from the typical boutique launch is capital. In January 2026, Rochefort Asset Management, co-founded by investor Kyle Bass, closed a senior secured loan specifically to scale NT7 production and shorten delivery timelines. Rochefort's Bass framed the NT7 as addressing operational requirements for forces in high-threat environments, and Young said the financing lets the company expand capacity. Production funding is exactly what the Tommybuilt T7 never had, and it is the strongest signal that the NT7 could avoid the T7's chronic availability problems.

UO Arms is running a waitlist at uoarms.com and will notify its email list first when sales open, with public availability announced on its Instagram and X accounts. The company has said it expects demand to outstrip supply at launch, which is the usual pattern for a scarce, high-interest platform.

The pistol variant is a standard Title I firearm: no NFA paperwork, buy it like any other pistol. The factory SBR is an NFA item and requires a Form 4 transfer, registration, fingerprints, and a background check. The federal tax on short-barreled rifles is now $0 under the One Big Beautiful Bill Act that took effect January 1, 2026, so there is no $200 stamp on the SBR, and eForm 4 approvals are currently clearing in days to a couple of weeks rather than months. A HUXWRX suppressor is a separate NFA registration, also at $0 tax. If you would rather build a compact host on a platform you can buy off the shelf today, the AR pistol to SBR conversion guide covers the Form 1 route, and you can spec a suppressed short-barrel build in our rifle builder.

The UO Arms NT7 is the most credible domestic civilian MP7 to date, and the reason is not the gun alone, it is the money behind it. The Tommybuilt T7 proved the demand and the design; it just never had the production capacity to satisfy either. With Rochefort financing, a reengineered platform, and a launch structured around pistol and SBR options, four colors, and a HUXWRX suppressor pairing, UO Arms is attacking the exact weakness that held the T7 back.

The open questions are price and delivery. UO Arms has not published an MSRP, and a 4.6x30mm PDW with an SBR and a can is not a budget purchase. Buyers should get on the waitlist to hold a place, then wait for official pricing before committing. If you want HK's own factory answer instead of a clone, our coverage of the HK SP7 civilian MP7 tracks that firearm's path through German export clearance and ATF import review, and you can compare compact platforms side by side while you decide.