Heckler & Koch HK 91 .308 18” Semi-Auto Rifle HK91 Battle Rifle & Extras
SOLD FOR: $3,425.00
LSB#: LSB251031NO019
Make: Heckler & Koch, HK
Model: HK91
Serial Number: A033901
Year of Manufacture: 1981 (IB Date Code) / Modern
Caliber: .308 / 7.62X51
Action Type: Roller Delayed Blowback, Semi-Automatic Fed By Detachable Magazines
Markings: The left side of the mag-well is marked, “HK91 A033901 / Cal..308” with an “IB” date code and Ulm proof. The right side of the receiver is marked, “Made In Germany HK Inc. Art. Va. 22 201 Kal..308”. Both sides of the trigger housing are marked, “0 1”. The forend is marked, “2IB”, the buttstock is marked, “3HJ”. All magazines save for the 5 round and 2x CETME magazines are dated/German. The bayonet is marked, “8/1/78” on both the grip and sheath.
Barrel Length: 18”. 19.5” with flash hider.
Sights / Optics: The front sight is a hooded post. The rear sight is a four position diopter drum adjustable peep sights and an open V-notch.
Stock Configuration & Condition: The stock is a three piece black polymer set with a triangular open top G3 forend w/ sling mount, finger grooved pistol grip, and drop comb stock with sling bar, holes for takedown pins, and ribbed plastic buttplate. There are faint scratches and rub marks throughout consistent with light wear and use. There are no chips or cracks. The LOP is 14 3/4” from the front of the trigger to the back of the buttplate. The stock rates at about Excellent overall condition.
Magazine Quantity & Condition: Two x 20rd Aluminum HK magazines in Very Good condition, five x 20rd steel HK magazine in Excellent condition, and two x 20rd CETME steel magazines in Excellent condition.
Type of Finish: HK Gray Enamel
Finish Originality: Original
Bore Condition: The chrome bore is bright and the rifling is sharp. There is no erosion in the bore but there is some stubborn fouling. In this writer’s opinion the bore rates at a 9.5/10.
Overall Condition: This rifle retains about 99% of its metal finish. There is light operation wear. There are faint handling marks throughout. The pins are unmarred. The markings are clear. Overall, this rifle rates in about Excellent condition. The bayonet is in Excellent condition.
Mechanics: The action functions correctly. We did not fire this rifle. As with all used firearms, a thorough cleaning may be necessary to meet your maintenance requirements. The cocking tube does not have a bayonet mounting point installed. The receiver has a rubber casing deflector installed. The bolt gap is 13 thousandths.
Box, Paperwork & Accessories: 10x Magazines, G3 bayonet, and HK. cotton 3-point sling.
Our Assessment: This Heckler & Koch HK91 represents one of the most iconic Cold War–era battle rifles ever offered to the U.S. civilian market, imported from Germany during a brief window before changing regulations curtailed availability. Manufactured in 1981, as indicated by the IB date code, the HK91 is the semi-automatic civilian counterpart to the legendary G3 service rifle, sharing the same roller-delayed blowback operating system that defined Heckler & Koch’s postwar rifle lineage. Built in Oberndorf and proofed at Ulm, these rifles exemplify German industrial precision, with robust stamped construction, welded trunnion, and a chrome-lined barrel designed for durability under sustained use. Chambered in .308 Winchester/7.62x51mm NATO, the HK91 reflects NATO standardization at the height of the Cold War, pairing a powerful full-size rifle cartridge with a recoil-mitigating roller system that delivers smooth, consistent operation. This example remains in exceptional condition, retaining approximately 99 percent of its original HK gray enamel finish with only light operational wear and faint handling marks visible. The chrome-lined bore is bright with sharp rifling and no erosion, rating 9.5 out of 10, with only stubborn fouling present. The polymer furniture set remains clean and intact, with no cracks or chips, and the diopter rear sight assembly is complete and fully functional, preserving the rifle’s correct military sighting system.
This offering is further enhanced by an extensive accessory package, including ten magazines consisting of German aluminum and steel examples along with CETME magazines, as well as a correct G3 bayonet dated 1978 and an HK cotton three-point sling. The rifle is fitted with a rubber casing deflector and does not have a bayonet mounting point installed on the cocking tube, a common configuration on imported civilian HK91 rifles. With its strong finish, excellent bore, matching period components, and desirable accessories, this HK91 stands as a premium example of one of the most sought-after German battle rifles ever imported into the United States. -R.E.
