It just hit me!
The GOP gun humpers were shrewd enough to PRETEND to be pro-life, religious men and women so they could get the RW evangelical Christian folks on their political side. They could hide behind Roe, which for many Christians is a matter of consciences (in their brainwashed minds) but the gun humpers really do not care about abortion but they have linked anti-abortion to pro 2nd Amendment. On its own, voters would reject the gun humpers when it comes to elections of representatives, but having linked anti-abortion to all things right-wing...including trickle-down economics, taxation, anti-health care. Hiding behind the abortion issue, they were able to get and keep a sizable electorate voting against their own political interests.
Otherwise there is no honest or logical reason to be anti-abortion and pro guns. No logical reason to say you are pro-life and be against ALL gun safety legislation. As long as the Christian right sees the abortion issue as their main issue, reasonable gun legislation, fair tax reform, healthcare for all, free college, meaningful immigration policy and the rest of everything that raises all citizens' standard of living is out of the question. NRA is behind it all as they work from behind the abortion issue.
YES! YOU CAN FOOL SOME OF THE PEOPLE ALL THE TIME.