Umarex Origin Review: The PCP That Ships With Its Own Air Supply

The Origin is a side-lever, magazine-fed, unregulated .22 PCP with a 23-inch barrel, a 43.1-inch overall length and a 3,625 PSI (250 bar) maximum fill. Umarex publishes 40 shots per fill in .22 and supplies two auto-indexing 10-shot rotary magazines rather than the customary one. The trigger is described as two-stage adjustable, the safety is manual, and the receiver carries a combination Picatinny and 11mm dovetail rail.

The piece that makes it different from every other value PCP is the tank. Umarex calls it the Ever Pressure Tankand describes it as a patented pre-pressurized reservoir that “is pressurized for a full-power shot with only 13 pumps.” In plain terms: the tank is not empty when the rifle is empty. There is a baseline charge behind the usable air, so the pump is compressing against a head start rather than filling a bare bottle from atmospheric pressure. The tank also carries an automatic overpressure air release, which is the right feature to have on a pump-filled rifle where enthusiasm is the main overpressure risk.

One spec-sheet oddity to note while we are here: Umarex's feature list calls the trigger two-stage adjustable and the rifle side-lever, while the spec table on the same page lists “Trigger Action: Single,” and at least one large retailer lists the action as bolt action. The rifle is a side-lever. We mention it because this is a product whose published data needs reading carefully, and the velocity section below is where that really bites.

Umarex publishes two pumping figures, and they describe two completely different jobs. About 100 pumps takes the Origin from empty to a full 3,625 PSI fill. Thirteen pumps develops one full-power shot from the pre-pressurized tank. Both are true, and reading only one of them gives you the wrong picture.

Here is the number nobody prints. If 100 pumps buys a fill and a fill is 40 shots, the real cost of shooting this rifle is 2.5 pumps per shot— computed, not published. That is the figure to plan a range session around, and it is remarkably low. The 13-pump figure is the cost of topping up for one shot, which is what you would do before a walk-around for squirrels, not what you would do for a forty-pellet session.

Umarex markets the Ever Pressure Tank as needing up to 50 percent fewer pumps, and Outdoor Life's reviewer — after what he describes as numerous refills — called that claim fair. That is about as good as a marketing claim gets: an independent tester who did the work agreeing with the direction and the rough magnitude.

This is the part of the Origin's documentation we cannot defend. On a single Umarex product page the .22 is listed at 1,100 FPS with an 11.9 grain pellet, at 1,000 FPS with .22 alloy pellets, and at 1075 FPS in the specification table. Those are three numbers for one rifle on one page. Retailers then pick whichever figure they like, which is how the same gun ends up advertised at three speeds across the internet.

Our reading: the 1,075 FPS spec-table figure is the one to plan against, the 1,100 figure is a best-case with a specific light pellet, and the 1,000 FPS alloy figure is a different pellet class entirely. Alloy pellets are lighter and faster and almost always worse for accuracy and penetration than good lead, so a velocity quoted with alloy is a marketing number rather than a hunting number.

What has actually been measured, and the caliber it was measured in, matters more:

Two things are worth drawing out of that table. First, the arithmetic checks out: 818 fps with a 25.39 grain pellet computes to 37.7 ft-lb, which matches the roughly 38 ft-lb the reviewer reported, so the standard energy formula and the measured string agree. Second, the one .22 data point we could find — 919 fps with a 14.3 grain pellet, one used rifle, one pellet weight — lands well below the published 1,075 and still produces a computed 26.8 ft-lb.

That is the number that matters for hunting. The small-game energy bar we use across the site is 12 ft-lb at the target, and 26.8 ft-lb at the muzzle clears it with room for the energy a pellet loses on the way out to 35 or 40 yards. The Origin is a legitimate small-game rifle in .22 even at the pessimistic end of its published range — see our hunting air rifle guide for how that bar works by quarry, and .177 vs .22 for why .22 is the right caliber for this job.

The Origin is unregulated. A regulator holds the pressure delivered to each shot constant until the reservoir falls below the regulator's set point, which is what produces the flat velocity strings PCP shooters talk about. Without one, pressure falls shot by shot and velocity traces a curve — rising as the valve opens more efficiently, peaking, then falling away.

What Outdoor Life found on the .25 is that the curve is unusually forgiving: a 23 fps spread across a 20-shot string, described as a fairly large sweet spot. Twenty-three feet per second over twenty shots is tight enough that it will not visibly move a group at normal air rifle distances. Accuracy backed that up — ragged one-hole groups at 30 yards and 0.6-inch groups at 50 yards with JSB 25.39 Exact Kings. Those are excellent results for this price class, with the caveat that they are .25 caliber results from one rifle with one pellet.

The practical consequence of being unregulated is that you find yourrifle's sweet spot and work inside it. Fill to 3,625, shoot a string over a chronograph if you have one or over a target if you do not, and note where the group opens up at the bottom end. Then refill there rather than shooting the tank dry. Pellet choice matters more on an unregulated gun than a regulated one — our pellet guide covers the weights worth trying first.

If flat velocity matters more to you than the included pump, Umarex sells a regulated alternative for less money: the Notos Gen 2, independently measured at a 1.88 fps standard deviation across nine pellets. It does not include a fill source, which is the trade.

At 43.1 inches overall and roughly 6.8 pounds bare — a figure that comes from the spec sheet Outdoor Life cites rather than from anything Umarex publishes on its own product page — the Origin is a full-size rifle, not a carbine. Add a scope and mount and you are carrying something in the seven-and-a-half pound region. That is fine from a bench or a blind and noticeable on a long walk-around.

The trigger is the pleasant surprise. Umarex calls it two-stage adjustable; Outdoor Life measured it breaking at about 2.8 pounds out of the box, which is a genuinely good factory trigger at this price and better than most break-barrels will ever be without work.

Two omissions are worth knowing before you order. The side lever is reported as rougher than higher-end PCPs— it cycles easily, it just does not feel expensive. And the rifle ships without swivel studs, so if you want a sling you are adding studs or using a clamp-on solution. Neither is a reason not to buy it; both are the kind of detail that a spec sheet will not tell you and a buyer notices on day one.

On sound: the shrouded barrel takes the edge off but does not make this a backyard-stealth rifle. Outdoor Life describes “a bit of a bark” that the shroud dampens enough for suburban use. If quiet is the priority above all else, our quietest air rifles guide is the better starting point.

The Origin ships with no scope and a combination Picatinny and 11mm dovetail rail, which is the most useful thing a budget airgun can do for an optics buyer. You are not locked into one ring standard, so whatever rings you already own probably fit, and you do not need the dovetail-to-Picatinny adapter that catches so many airgun buyers out.

The one fitment warning is height. Outdoor Life notes that low-profile mounts may not clear on this rifle and recommends medium profile. That is the shroud taking up the space a slim barrel would leave, and it is a clearance problem no amount of tightening fixes. Plan on a medium-profile mount as the default and a high profile if your scope carries a 50mm objective.

Our air rifle scope mount roundup has the published center heights and objective clearances for every mount worth considering, and the scope roundup covers the parallax and recoil-rating questions. One advantage the Origin has over any springer: it is recoilless in the way that matters to glass, so you do not need a scope rated for two-way piston recoil and you do not strictly need a stop pin.

Buy the Origin if you want your first PCP, you want it to work the day it arrives, and you do not want the second purchase to be the one that decides whether you shoot. It is also the right rifle for someone who already knows they want a compressor eventually: the pump covers you until then, and nothing about the rifle has to change when the compressor shows up.

Buy something else if one of these is you:

The Origin earns its reputation. It solves the single biggest practical problem in PCP ownership by putting the air supply in the box, and the Ever Pressure Tank turns the usual hand-pump argument on its head: 2.5 pumps per shot across a fill is a cost almost anyone will accept. The trigger is better than the price suggests, the two included magazines are unusually generous, and the independent accuracy results on the .25 version are genuinely good.

What keeps it off a perfect score is documentation and detail rather than performance. A manufacturer publishing three velocities for one caliber on one page, and no weight at all, is a manufacturer making the buyer do work the buyer should not have to do. No swivel studs and a rough side lever are the price showing. And unregulated is unregulated — the sweet spot is wide, but you still have to find it.

We do not sell air rifles, so we have no reason to push you up the range or to pretend the pumping is nothing. If you want into PCP shooting this season without a second equipment purchase standing between you and the first pellet, this is the rifle we would buy.