1978 Heckler & Koch HK300 .22 WMR Early West German Sporting Rifle HK QD Scope Mount

Description:
MANUFACTURER: HECKLER & KOCH GMBH
MODEL: HK300 ROLLER-DELAYED SPORTING RIFLE
YEAR MANUFACTURED: 1978
COUNTRY OF ORIGIN: WEST GERMANY
SERIAL NUMBER: 006058
ARMORY MARKS: HECKLER & KOCH GMBH / OBERNDORF/N MADE IN GERMANY (ORIGINAL WEST GERMAN HK MANUFACTURING MARKS); SACO ARL VA 22 209 (SACO IMPORT MARK – ARLINGTON, VIRGINIA)
CALIBER: .22 WINCHESTER MAGNUM RIMFIRE (.22 WMR)
CAPACITY: 5+1 ROUNDS
BARREL LENGTH: 20.00"
BARREL FEATURES: COLD HAMMER-FORGED SPORTER
RIFLING: 6-GROOVE RIGHT-HAND RIFLING
OVERALL LENGTH: 39.25"
LENGTH OF PULL: 13.75" 
OPERATING SYSTEM: ROLLER-DELAYED BLOWBACK
ACTION: SEMI-AUTOMATIC
TRIGGER: FACTORY SINGLE-STAGE
IRON SIGHTS: REAR NOTCH, RAMP FRONT BLADE
OPTIC READY: HK QUICK-DETACH ONE-PIECE SCOPE RING MOUNT
STOCK: CHECKERED WALNUT MONTE CARLO WITH SCHNABEL FOREND, RAISED CHEEKPIECE AND WHITE LINE SPACERS
GRIP: CHECKERED PISTOL GRIP
FIREARM FINISH: POLISHED BLUED
CONDITION: VERY GOOD WITH BEAUTIFUL ORIGINAL WOOD, STRONG BORE, SHARP CHECKERING & LIGHT HANDLING MARKS
ADDITIONAL FEATURES: WEST GERMAN PRODUCTION, ROLLER-DELAYED ACTION, SACO IMPORT, FACTORY QUICK-DETACH HK SCOPE MOUNT, DETACHABLE MAGAZINE, SLING SWIVELS, HIGHLY COLLECTIBLE HK SPORTING RIFLE, INCREASINGLY SCARCE
WHAT’S INCLUDED: RIFLE, MAGAZINE & MOUNT

Few sporting rifles ever produced wear the Heckler & Koch name, and even fewer have earned the legendary reputation of the West German HK300. Built in Oberndorf during the golden age of HK manufacturing, the HK300 represents a level of engineering, machining, and refinement that is virtually nonexistent in today's rimfire market. Chambered in the hard-hitting .22 Winchester Magnum and featuring HK's ingenious roller-delayed operating system, the HK300 has become one of the most sought-after sporting rifles ever to leave the famous German factory. Collectors know exactly what this rifle is—and just how difficult they have become to find in this condition.

Unlike conventional blowback rimfires, the HK300 utilizes HK's roller-delayed action to slow bolt movement, producing an exceptionally smooth shooting experience while maintaining outstanding reliability. Combined with its precision cold hammer-forged 20-inch barrel, the rifle delivers remarkable accuracy and consistency with quality .22 WMR ammunition. Whether stretching shots across open prairie or dispatching varmints around the farm, the HK300 has long been regarded as one of the finest semi-automatic .22 Magnum rifles ever built.

Everything about this rifle reflects classic German craftsmanship. The beautifully figured walnut Monte Carlo stock features crisp factory checkering, a raised cheekpiece, elegant Schnabel forend, and excellent ergonomics that make the rifle balance naturally in the hands. Factory iron sights remain in place while the desirable HK quick-detach one-piece scope mount offers the flexibility to mount premium optics without sacrificing originality. Even decades after production ceased, the fit, finish, and machining quality continue to stand well above most modern sporting rifles.

The .22 Winchester Magnum Rimfire remains one of the most versatile small-game cartridges ever developed, offering significantly greater velocity, flatter trajectory, and substantially more downrange energy than the standard .22 LR. Coyotes, foxes, raccoons, woodchucks, prairie dogs, and other varmints are all well within the HK300's capabilities when paired with quality ammunition. The smooth roller-delayed action, excellent trigger, and premium barrel make hits at extended distances both practical and confidence inspiring.

Collectors have steadily driven demand for original West German HK sporting rifles as production numbers remain limited and surviving examples continue disappearing into private collections. Original rifles complete with the factory HK quick-detach scope mount have become especially desirable, with the mount itself commanding a premium among HK enthusiasts. This is far more than simply another .22 Magnum—it is an iconic Heckler & Koch sporting rifle built during one of the company's finest manufacturing eras. If you've been searching for a truly collectible HK that combines investment-grade appeal with outstanding field performance, this HK300 deserves a place in your collection.

***Please see pictures for condition and wear***

SHIPPING INFORMATION:
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PROCEDURES:
IF YOUON A GUN AND DECIDE TO CANCEL YOURWE ARE UNABLE TO DO THAT FOR YOU PER GUN ’S POLICY. IF THE ENDS AND NO OTHER BIDS HAVE COME IN ON THAT GUN AND YOU STILL DO NOT WANT IT YOU WILL BE SUBJECT TO A 20% RESTOCKING FEE

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DISCLAIMER
All pre-owned firearms offered by National Armory are thoroughly inspected by our on-site gunsmith to ensure they are in proper working condition. While test firing may or may not be conducted, all firearms are evaluated for basic function and safety. It is solely the buyer’s responsibility to be familiar with and comply with all federal, state, and local laws regarding firearm ownership and accessory restrictions, including but not limited to magazine capacity and prohibited features. All sales are final.

Curio/Relic: Yes
Rifle Caliber: .22 WMR (.22 Magnum)
Manufacturer: H&K
Model: HK300
Serial Number: 006058
Barrel Length: 20.00
Condition: VERY GOOD
Manufacture Date: 1978

Price: $2,649.99
Shipping: $39.99
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