Great option for ca ar's - Juggernaut Tactical California Compliant AR-10 Magazine Locking Kit

I recently purchased a JT CA compliant mag lock kit from Optics Planet for my AR10 build. I previously put one on an AR15. That was my first build, and even with my limited experience it was easy to install. It's also easy to use and allows relativey quick magazine changes for those of us living under restrictive CA gun laws. Just push the JR button, which allows the upper and lower receivers to seperate slighty (satisfying the CA law). The drop the mag, click the receivers back together, and your good to put in a new mag. The price was right and free shipping from OP is always good. Plus with all the Optics Planet bucks I aquired when ordering parts I was able to pick up a Lancer Viper Muzzle Break for a fraction of the cost.