These factory H&K magazines fit the HK91, HK G3 .308 and HK PTR-91 rifles, and can even fit CETME rifles (with some minor fitting adjustments).
Features and Specifications:
HK Original Military Issue Rifle Magazine
Caliber: 7.62x51mm NATO
Capacity: 5 Rounds
These are new however they left HK bulk packed in HK bins so each mag will have small marks from storage and transit.
ORIGINAL HK, MADE IN GERMANY
HK Model 91 (HK91)
CETME rifles (requires minor fitting)