Forgot about the welded rail on the PTR. The original HK 91 doesn't have a rail. I guess I'd prefer a rail over an ejection buffer. But the original sights work fine, they work well enough to have taken many white-tail deer. In fact, the first deer I ever harvested was taken with a HK 91, with open sights. It's also the gun I preferred when guiding clients while hunting black bears.
