SAN FRANCISCO — California has some of the strictest gun control laws in the nation. But one wouldn't know that going to the firing range these days. AR-15s and AK-47s are the must-have guns of choice. How can that be? Every time California tightens up the assault weapons ban, the gun industry finds a way around it. The latest example involves a tiny device. John Largaespada loves his AR-15 and goes to the range every week to fire it. And he's got plenty of company.... (GunPolicy.org)