This is the AR-15 SNAP-LOCK made by Tactical Chipmunk. This device replaces your existing AR15 Bolt Catch and uses the existing roll pin. It locks your legal 10-round capacity magazine into place and makes removable only by pulling the Take-Down Pin of your AR and lifting the rear of the upper receiver (leaving the Pivot-Pin in place), allowing you to press your standard magazine release and drop your magazine. The mandatory separation of the lower and upper receiver meets the California Department of Justice requirement of disassembling the firearm action and will make you and your rifle compliant with the new CA laws.
**This device is not a CALDOJ approved lock, however it meets the definition in California law of disassembly of the firearm action, as set forth by CAL DOJ. This device cannot be removed from the rifle without cutting the tab off on the side of the SNAP-LOCK.