Koster is a Clinton-Obama clone/crony- even if he likes guns, he will roll to the tune of his handlers. Grietens is a weakling who spent months at the DNC grooming club and now is running as a Repub... I will vote for him but with concerns and let him know of them in writing if he wins....
The NRA lost my trust and I suppose if you are a single issue guy, living in a single issue fish bowl, then the NRAs endorsement may be valid for you, unfortunately, the world I see is not just about the 2A....
Grietens seems like Hillary’s long-lost soulmate, in that they have both had POTUS ambitions since the womb. Everything he does is calculated toward that, and what will look good on his resume. I will probably hold my nose and vote for him; I’m not sure he would be as bad as a Dim governor.