It's cool, but I think it's going to injure more users than protect (folding it up looks like an accident waiting to happen in unsteady hands).
You're allowed to have Glocks in CA? I thought it was down to the good citizens only being able to carry squirt guns, if and when they had passed the background check, and promised to only fill them with Arrowhead Natural Spring Water. 
Yeah they suck and can be a PITA, but the background checks and regulations are honestly not that bad here and at most are a minor inconvenience for me to conform to (high capacity magazines? never heard of them
). The subject of regulation (in this state or any) is always one I have a hard time choosing which side of the fence I'm on. I strongly agree with a good citizen's right to bear arms, but I also support well-written regulation (however it is unfortunate that it's the only "solution" politicians can come up with).
When I was a teen I would go on ride-alongs with a good family friend in the LACFD. He worked at two stations during the times I did ride-alongs, one next to Van Nuys Airport (it was the coolest IMO, it doubled as the Airport Fire and Rescue and was nextdoor to the LA City and County Fire and Rescue rotary maintenance hangar) and the other was in South Central (the firehouse that was ransacked and burned to the ground during the Rodney King riots).
Van Nuys was just fun; ride-alongs, BBQs, and in the frequent downtime checking out the airport rigs or helicopters next door. The rebuilt South Central station was bigger, brand-spanking new, and (to deal with the modern "local culture") resembled Fort Knox (and is the only place/lot in south LA that I wouldn't hesitate to park my car)). It took a real special breed of fire-men/women to come into work with the best they could at that station, shift after shift, to try and help a community that mostly hated/distrusted them and/or wanted to kill them. Nobody left the station without a bulletproof vest, and for the first few years after the riots more bullet holes had to be repaired on the trucks than any other maintenance work on them combined. They would BBQ outside in the parking lot (surrounded by 2'-thick, 12'-high brick walls topped with double razor wire), but there were so many calls that there was rarely 10-minutes of downtime. The most peaceful ride-along that I went on there involved a sheered-off hydrant by a heavily intoxicated (crack head) driver. It was uneventful except for a 8.5 pound chunk of lead solder being dislodged in the hydrant's pipes and shooting straight up in the air and coming straight down on top of a guy I was standing close to on his helmet (knocked him to the ground and cracked his fire helmet in half, but thankfully he only had a headache afterwards)).
