A First Amendment challenge to gun control laws?

After the Sikh Temple attack at a gun free zone last year, it is understandable that Sikh's might feel that their traditional daggers are not enough to meet their religious obligation for self protection.  From the Washington Times:

A Sikh man is suing the state of California over its gun laws, arguing they violate his First Amendment rights to practice his religion by barring him from carrying the kind of weapons he says he needs for self-defense. 

Gursant Singh Khalsa, a practicing Sikh for 35 years, charges in the lawsuit filed this month that California’s laws banning military-style, semiautomatic weapons and high-capacity magazines violate mainstream Sikh doctinre requiring Sikhs “be at all time fully prepared to defend themselves and others against injustice.” 

“We’re required to wear what’s called a kirpan” or dagger, he said Thursday. “I feel, as far as my religion goes, it dictates that we should have all weapons of all kinds to defend ourselves. By not being able to carry an assault rifle or weapon that has a high-capacity magazine, I don’t feel that I can defend myself or my family.” . . .