They should first put forth a 'good faith' effort to repeal many of the current laws which infringe our rights.
Then, they should mandate that 'universal' be truely universal. That is, the maximum standard any state/city/county can impose. including NYC, Chicago, etc.
"Shall issue" to every US citizen with no felony conviction, 100% free, office must be available at least 80 hour per week, 24/7 online, must-issue within 15 minutes.
Put teeth in it: make it a federal felony with mininum of 25 years, 25 million fine for any politician or public employee to even attempt to not comply with the law, or work towards overturning it. Court shall be administered by the NRA, with a jury of NRA members.