Civilian model of the German HK G3, the 91 is chambered in 7.62x51/.308. They are notorious for destroying brass. That can be alleviated by installing a port buffer which can help reduce the dents to the brass. Original HK91′s can be quite costly because of their collector status but you can pick up quality made U.S clones for under $1,000. (GRH)
“Anyone who appears to be triggered out of watchfulness and into action by your appearance must be explained.
Anyone observing you carefully must be explained.
Anyone whose behavior seems to be geared to yours must be explained.
If the explanation does not satisfy you, be ready to take appropriate defensive action.”~Jeff Cooper, Principles of Personal Defense, 1989