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Umarex Hammer .50 Cal Air Rifle

Eydin with an axis deer taken with the Umarex Hammer

Umarex Hammer™ .50 Cal Air Rifle

The Umarex Hammer is an American-made .50 caliber air rifle. It is the most powerful production airgun on the planet. Innovative engineering and advanced technology make this the perfect air rifle for hunters and shooting enthusiasts alike.

$799.99 MSRP

The World’s Most Powerful .50 Cal Production Air Rifle

Power without Powder

The .50 caliber Umarex Hammer didn’t alter the laws of physics. We just took advantage of them. The Umarex Hammer’s primary objective was to accelerate a greater mass faster using technology, ingenuity, and that big .50 caliber barrel. Unlike a traditional firearm, the Hammer doesn’t generate a comparable report or recoil signature. A shooter in a hunting situation will not need to wear hearing protection when shooting the Hammer. The recoil of this big bore rifle can best be described as a firm push, not a sharp kick like other rifles would give. The Umarex Hammer is not just another air rifle. It’s in a class all by itself.

LightSpeed™ is Possible

The sheer energy and three full-power shots delivered by the .50 caliber Umarex Hammer is achieved through its proprietary, patent-pending, Lightspeed valve. The innovative engineering used to design this internal mechanism coupled with a .50 caliber, 550 grain lead slug is the recipe for making 705 foot pounds of energy at the muzzle. Almost as impressive, it only takes two pounds of effort to operate its straight-pull bolt. This short, effortless, two-inch action is all it takes to cock the rifle and advance the 2-shot magazine.

Umarex Hammer™ Ballistics Data: Speed and Energy Generation

200 Lead 1055 495
250 Lead 1000 555
275 Lead 945 545
300 Lead 930 576
330 Lead (Lyman) 935 641
350 Lead (Lyman) 875 595
550 Lead 790 705

High Power Air Rifle Hunting

Proven in the Field

The Hammer has proven itself on several hunts with a wide variety of game. Rossi Morreale of American Airgunner took an Oryx on a hunt in Texas, and professional hunter and TV host Steve Scott has harvested an American Bison and the big African Cape Buffalo. Steve Criner, host of Umarex’s Real Air Gun Hunting has harvested a feral hog and a bobcat, huntress Brittney Glaze harvested an Axis deer, and Umarex USA’s Pro Staffer, Eydin Hansen harvested a Fallow deer—all with the .50 caliber Umarex Hammer. Additionally, Umarex USA Marketing Director, Justin Biddle, sported the Hammer successfully on a spring bear hunt in Canada hunting Whitetail Deer. Each year more and more states are opening big game seasons for big bore airguns. Rest assured that no other air rifle delivers more lethal energy to the target. The Hammer hits hard. Very hard.

Steve Scott with a bison he took hunting with the Umarex Hammer

Umarex Hammer™ Features & Specs

Multi-shot Reassurance

The Hammer’s Lightspeed valve, coupled with a precision regulator instantly pulses a measure of air compressed to 3,000 psi behind the projectile. This innovative patent-pending system efficiently propels a .50 caliber 550 grain lead slug at a muzzle velocity of 790 feet per second and a 250 grain slug at over 1,000 feet per second. The bolt action will allow a follow up shot from the two shot magazine in mere seconds. Not that you’ll need it, but the Hammer will launch three full power shots down range before the velocity begins to dip at all. In fact, you can still get two more shots with the remaining air. This means that with the Hammer’s tank filled you have all the air you’ll need for your big game hunting adventure.

Not Just Any Stock

Umarex USA collaborated with PolyOne Corporation, a premier provider of specialized polymer materials, services and solutions, in the design, engineering and material selection for the stock of the Umarex Hammer air rifle. As a result, the stock, forearm and other key polymer components are produced from Nymax, an advanced polymer that withstands the rugged trials of outdoor hunting and shooting. Designers from PolyOne’s IQ Industrial Design team added three locations into the rifle’s forearm that accept M-LOK accessories and incorporated a sling stud into the lower half of the rear stock. Together, the advanced polymer materials and innovative design, including smooth edges and tight-fitting joints, form a modern and functional stock for the Hammer rifle that is both shooter-friendly and made to last.

All That and A Bag of Chips

We wanted to deliver more of the features you expect with a modern rifle when we designed the Hammer. We’ve included a 8.5 inch Picatinny rail, Standard Magpul AR style grip, two safeties, rear sling stud, three M-LOK attachment points, quick filling Foster connection for the tank, and rounded the package out with a clean 6 lb. trigger. The Hammer is loaded with features and is easy to operate within the field which will leave you better prepared for your airgun hunt.

Built in the USA

Conceived, Designed, Engineered and Built in America

When you are building an air rifle like no other, you want to build it right. We couldn’t imagine the Umarex Hammer being built anywhere but our hometown, Fort Smith, Arkansas. We’ve expanded our facility to allow us all the space we need to make the biggest, most powerful air rifle ever produced and we’ve trained our staff and provided cutting edge quality control all along the assembly process.

Umarex Facility Fort Smith, Arkansas USA


Features & Specifications Overview

  • Built in the USA
  • Most powerful .50 cal production air rifle on the planet
  • Delivers 705 foot pounds of energy
  • Shoots a 550 grain lead slug at 790 feet per second
  • Places 3 rounds of 350 grain lead slugs touching at 50 yards using Umarex lead ammo
  • Straight-pull bolt with 2 lb. cocking effort and just 2 inch of travel
  • Delivers 3 full-power & 2 sufficient followup shots
  • Patent-pending Lightspeed valve
  • 24 cubic inch carbon fiber tank holds 4,500 psi compressed air
  • Regulated to 3,000 psi per shot
  • Utilizes Quick Disconnect Foster fitting for filling
  • Standard Magpul AR grip
  • Picatinny Rail 8.5-inch in length with 20 slots
  • Modern stock design
  • Three slots incorporated in the forearm for M-LOK attachments
  • Rear sling stud built-in
  • 43.75-inch overall length
  • 8.5 pound overall weight unloaded without scope
  • 29.5-inch barrel length with full length composite shroud
  • 6 lb. trigger weight
  • Three safeties: magazine lock-out, trigger block, field safety