The Vanishing Kuna
Springfield's roller-delayed 9mm — a Croatian police gun named for a pine marten — keeps selling through faster than shops can shelf it. Notes on the emptiest slot in the gun case.
There is a slot in the modern gun case with a peculiar habit: it empties. The gun that belongs in it is not rare, not collectible, and not precious — it lists at $999, squarely in working-gun territory. It is a squat, slab-sided 9mm pistol from Croatia called the Kuna, and since it arrived in the spring of 2025 it has been performing the neatest trick in the business: being out of stock.
That is not a figure of speech, and this desk does not deal in figures of speech. When we checked the big online counters on November 1, 2026 — a year and a half after the launch — KYGunCo showed every Kuna variant it lists as out of stock: the braced gun, the Firstline gun, all of them. AR15Discounts: out of stock. Freedom Outdoors had precisely one Kuna live — a brace model at $1,309.95, about $160 over its list price — and a lone listing priced like that is not a stocked shelf; it is demand, charging rent. Guns.com, reviewing the pistol at launch, had already placed its bet in print — that Springfield would soon be cranking them out to meet high demand. Eighteen months later, the cranking continues, and the shelf has yet to win.
A police gun before it was a pistol
The Kuna was not designed for the American gun case at all. It comes from HS Produkt of Karlovac, Croatia — Springfield Armory's longtime manufacturing partner, the same house behind the Hellcat, the Echelon and the Hellion — and it was built professional-first, a compact personal-defense weapon for police and counter-terror work, in the lineage of the little submachine guns European units have carried for decades.
It earned its papers before American shooters ever saw it. In .40 S&W, the Kuna won a contract with the São Paulo Military Police — the largest police force in Brazil — beating out the top-shelf B&T APC40 and a Steyr design to do it. The gun surfaced at the Enforce Tac show in Germany in February 2025 with a 9mm version promised, and on April 15, 2025 the promise landed here: the Kuna 9mm pistol, at $999, or $1,149 fitted with a Strike Industries FSA folding brace.
Rollers, not springs
The reason shooters care is a single roller. Most pistol-caliber carbines are straight blowback — the bolt is simply heavy, and the recoil is honest but rowdy. The Kuna is roller-delayed: a single vertical roller wedges the bolt shut for the first fraction of the shot, holding it closed until chamber pressure falls to polite levels, then lets it cycle. It is the operating idea the MP5 made famous, miniaturized into a mechanism you can explain on one hand — and it makes a 9mm shoot noticeably softer than its size suggests.
Around that roller sits a specification that reads like it was written by the people who would have to carry it: a six-inch cold hammer-forged barrel threaded for a suppressor, a monolithic aluminum upper with M-LOK slots, controls mirrored for left-handed shooters, a charging handle that folds itself out of the way — and a folded length of fifteen and a half inches, small enough to disappear into a daypack.
Why the slot stays empty
Part of the answer is arithmetic. Roller-delayed guns used to live behind a paywall — the Swiss and German-pattern machines cost multiples of the Kuna's price, and even its nearest delayed-blowback rival, the Grand Power Stribog, runs about two hundred dollars more. The Kuna put the mechanism at $999, shipped it with two magazines, and priced spare magazines at twenty-five dollars in an era when proprietary magazines are where manufacturers traditionally take their revenge. The value case wrote itself; the buyers did the rest.
This desk will not invent the rest. Springfield publishes no Kuna sales figures, so we publish none either — what can be documented is the empty slot, repeated across the biggest counters in the country, a year and a half after launch day. Which brings us back to the name. The pine marten is a famously elusive animal; hunters know it mostly by the traces it leaves. The Kuna's namesake would recognize the pattern. This is a gun America mostly knows by the space it leaves behind.
