Scott Walker is a big, old backer - read sockpuppet - of the NRA. He loves them NRA campaign donations so much he is willing to risk poor optics time and time again to give them some love. In return, the NRA showers him with campaign donations and an A+ rating.
Yup, Walker is a real gun nut supporter...unless those guns are near him.
In his invitation to his official kick off to his presidential campaign, which he has been running for four and a half years, Walker asks people to leave their guns at home:
Prohibited Items: All attendees will go through airport-like security and should bring as few personal items as possible. No large bags, sharp objects, signs, umbrellas, liquids, aerosol containers, guns, ammunition, fireworks, electric stun guns, mace, selfie-sticks, martial arts weapons/devices, or knives of any size will be allowed in the venue.
Just don't hold your breath waiting for Walker to admit guns kill. He gets paid a lot of money not to say that.