Umarex Hammer .50 caliber Airgun Big Bore Hunting PCP Air Rifle

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Product Overview




The .50 caliber Umarex Hammer Airgun Hunting Rifle 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, innovation, and the big .510 caliber barrel. This unparalleled air rifle will push a 550-grain slug to 760 FPS and generate 705 ft-lbs of energy at the muzzle. Unlike a traditional firearm, the Hammer doesn't generate a comparable report or recoil signature.

A shooter in a big game hunting situation will not need to wear hearing protection when shooting the Umarex Hammer. The recoil of this big bore air rifle can best be described as a firm push, not a sharp kick like a powder burning rifle would give. Its dual-chamber precision magazine means you'll have an immediate follow-up shot if needed and each Hammer comes with two magazines.

The Umarex Hammer is not just another air rifle. It's in an air rifle hunting class all by itself.





  • The rifle that generates big game power without powder

  • .50 caliber big game hunting air rifle

  • Precharged Pneumatic (PCP) operates with high-pressure air

  • Optimal operating fill pressure = 4,500 psi

  • Each shot regulated to 3,000 psi

  • 3 full power shots + 4th shot at near 90% power from one fill of air cylinder

  • 24 cubic inch non-removable carbon fiber tank

  • 2-round chamber magazine (includes 2)

  • Removable magazine means Hammer can be unloaded

  • 3 mechanical safety devices

  • Straight pull speed-bolt with 2 lbs cocking effort

  • 4-lb trigger weight

  • Built-in manometer (pressure gauge)

  • Picatinny riflescope rail

  • PolyOne designed and U.S. manufactured stock

  • AR Magpul style grip

  • Integrated rear sling stud

  • 3 slots in forearm grip to accept M-LOK attachments

  • Quick Disconnect Foster fitting for easy air-fill connection

  • 43.75-inch overall length

  • 8.5 pound overall weight unloaded without scope

  • 29.5-inch barrel length with full-length composite shroud

  • 1:24 twist rifled German-made barrel made by Walther

  • Ability to easily degas (remove all air)

  • Designed, engineered, assembled and tested in the USA



Capacity 2

Energy 700+ ft. lbs with 550 grain lead slug

Ammunition Lead Slugs

Ammunition .510 Lead Slugs

Scope Not included

Action Bolt Action

Caliber 0.510

Power Source PCP

Trigger Pull 4 lbs.

Weight 8.5 lbs.

Overall Length 43.75"



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  • 4
    powerful rifle

    Posted by Michael Lombardi on 08.02.21

    it's heavy, it's loud, and a blast to shoot. accurate, it kicks pretty good, not a sharp painfull kick, more of a push. i like it. buckshot supply charged a little more. but ive been searching for one a while. everyone on backorder. bout to give up, found buckshot, they had in stock, free shipping, had it in a few days. so was glad to pay a little more.