A good friend of mine (a lawyer) purchased a "gen 2" Glock 19 back in 1996 new. He was telling me he was tired of the sights on the gun as he had a hard time looking thru the "ring." I showed him a few pictures and he picked out something like this- only without night sight capability. He swears he bought the gun brand new in the box. Did Glock offer this gun with a ghost ring sight? I'm very intrigued by this.