Umarex Hammer .50 Cal PCP Air Rifle

Umarex Hammer
Umarex Hammer on a Water Buffalo

Airgun Legal Whitetail States

Use this map as a guide. Check your local and state hunting laws and regulations.


The Umarex Hammer is an American-built .50 caliber air rifle. Innovative engineering and advanced technology make this the perfect air rifle for hunters and shooting enthusiasts alike.

Umarex Hammer
$1,099.99 MSRP

Top of the Food Chain

Power without Powder

UMAREX HAMMER™ .50 CALIBER AIR RIFLE The Umarex Hammer is an American-built .50 caliber air rifle. Innovative engineering and advanced technology make this the perfect air rifle for hunters and shooting enthusiasts alike. The .50 caliber Umarex Hammer didn’t alter the laws of physics. It just took advantage of them. The Umarex Hammer’s primary objective was to accelerate a greater mass faster using technology, ingenuity, and a big .510 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 air 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 made for hunting big game.

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 .510 caliber, 550-grain lead slug is the recipe for making over 700 foot-pounds of energy at the muzzle. Almost as impressive, it only takes about two pounds of effort to operate its straight-pull bolt. This short, effortless action is all it takes to cock the rifle and advance the 2-shot magazine.

Umarex Hammer™ Ballistics Data: Speed and Energy

Possible results:

Grain Material FPS Energy
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 760 705.5
ReadyAir. Get the best way to fill your Hammer

High Power Air Rifle Hunting

Top of the Food Chain: Proven in the Field

The Hammer has proven itself on many hunts during its long development cycle with a wide variety of big game. Rossi Morreale of American Airgunner took an Oryx on a hunt in Texas and a whitetail deer in Arkansas and professional hunter and TV host Steve Scott has harvested an American Bison and the big African Cape Buffalo. Steve Criner, host of Real Air Gun Hunting, has harvested a number of feral hogs and bobcats, 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. Each year more and more states are opening big game seasons for big bore airguns. Rest assured that no other air rifle was made for the big game hunt. The Umarex Hammer hits hard. Very hard.

Shop Umarex Hammer
Steve Scott with a bison hunted with the Umarex Hammer

Features and Specifications

Multi-shot Reassurance

The Hammer’s Lightspeed valve, coupled with a precision regulator, instantly pulses a jet of compressed air at 3,000 psi behind the projectile. This innovative, patent-pending system has the capability to propel a .510 caliber 550-grain lead slug at a muzzle velocity of 760 feet per second and a 250-grain slug at over 1,000 feet per second. The bolt action allows a quick follow-up shot from the two-shot linear magazine in mere seconds. Not that you’ll need it, but the Umarex Hammer will launch three full power shots downrange before the velocity begins to dip. In fact, if filled to its maximum capacity of 4,500 psi, your fourth shot will be nearly 90% of full power and you’ll still get another shot with the remaining air. A Hammer with a full tank gives you 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 designing, engineering, and selecting the material of the Umarex Hammer’ stock. 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 Hammer’s final, shooter-friendly design is modern and functional with smooth edges and tight-fitting joints, yet rugged enough for outdoor life.

All That and a Bag of Chips

The Umarex Hammer air rifle delivers more of the features you expect with a modern rifle. It incorporates an 8.5 inch Picatinny rail, standard Magpul MOE® AR-style grip, three safeties, rear sling stud, three M-LOK attachment points, quick-filling Foster connection, and rounding out the package a clean, 6-pound trigger. The Umarex Hammer is loaded with features and is easy to operate out in the field, leaving you better prepared for your big game airgun hunt.

Conceived, Designed, Engineered, and Built in the USA

When you are building an air rifle that's made for the hunt, 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, top of the food chain air rifle ever produced and we’ve trained our staff and provided cutting-edge quality control all along the assembly process.



  • Built in the USA
  • Made to be a big game hunting air rifle
  • Capable of delivering 705.5 foot-pounds of energy
  • Shoots a 550 grain lead slug at 760 feet per second
  • Straight-pull bolt with 12 pound cocking effort and short, smooth travel
  • Delivers 3 full-power and 2 sufficient follow-up shots when filled with air to capacity
  • 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 MOE® grip
  • Use the Magpul MOE® grip's storage capabilities to store the field safety screw
  • 8.5 inch long Picatinny rail with 20 slots
  • Modern stock design
  • Three M-LOK compatible slots incorporated into the forearm
  • Built-in rear sling stud
  • 43.75 inch overall length
  • 8.5 pound overall weight (unloaded without scope)
  • 29.5 inch barrel length with full-length composite shroud
  • 4 pound trigger weight
  • Three safeties: Magazine lock-out, trigger block, field safety

Learn About the Umarex Hammer™