I'm open to your thoughts on this, but I suspect I'm a little more in touch with conservatism in the US than you.
Gun are not aligned with conservative ideology. Conservative ideology is aligned with NRA gun policies.
I know plenty of liberal gun owners. I used to be one as well. Guns are not the ideology.
The ideology is built on NRA and Conservative scare tactics that liberals want to take guns away. My friends that own guns certainly can see the difference between gun control measures and guns being taken away.
It's the age old go to with Conservatives and the NRA.