Prince50 Mag-Lock

The Prince50 Mag-Lock can be used on all AR-15 type rifles and AR-10 rifles using a stock AR-15 button.

The button can also be used as a real magazine release button when using it as such is permitted by law (traveling outside CA or .22lr conversion kit / upper receiver). Simply turn the allen screw counter-clockwise three times to gain such functionality. Turning it three times clockwise re-locks the magazine. To complete turns either way, you are required to use the included allen wrench, which meets the requirements of a tool as set forth by the CA DOJ.

This kit cannot be manipulated without a tool.

Included are instructions for several levels of locking. Level one is more than adequate for complying with the law as stated by the State of California.

In order to load your magazine, you need to disengage the rear take-down pin, pivot the upper receiver open. Once open, you can now top load your magazine while still locked to the lower receiver. Click here for installation instructions

THIS IS NOT A BULLET-BUTTON MAGAZINE LOCKING DEVICE! THE MAGAZINE MUST STAY FIXED TO THE RECEIVER. BACKING OUT THE SET SCREW TO RELEASE THE MAGAZINE IS CREATING A FIREARM WITH A DETACHABLE MAGAZINE AND CAN BE MANIPULATED WITHOUT THE USE OF A TOOL.