I'm not an expert with the laws in "ban" states, but I thought this new item would be of interest for those of you that are behind the lines.The AR MR2 Magazine release is design to help you facilitate reloads faster for those that have to use a fixed magazine. The video claims this device will meet the definition of a fixed magazine, requiring disassembly of the firearm action. This will prevent an "assault weapons" definition in most ban states. As always check with your local and state laws.

Description:

Introducing the AR MR2. This is an upgrade to your current mag lock or factory magazine catch we’ve developed so you don’t have to register your AR Rifle or Pistol as an "Assault Weapon" with this latest bans.

Easy to install and complete instructions included
Easy to remove if traveling to a “Free State”
Avoid top-loading by creating a fixed magazine rifle that can also be released by using the included quick-release rear takedown pin
No tools required to detach magazine once included quick rear take-down pin is pulled!
Milled from high-quality 7075-T6 Type II Anodized Aluminum and Stainless Steel
This Magazine Lock is designed to conform to the law as written in CA Penal Code 12276.1 (a) which defines "detachable magazine" to mean any ammunition feeding device that can be removed readily from the firearm with neither disassembly of the firearm action nor use of a tool being required. MR2 creates a fixed magazine that requires disassembly of the firearm action to detach the magazine.
Compatible with both Forged and Billet MIL-SPEC AR-15 and AR-10 Rifles/Pistols
Milled from 7075-T6 Aluminum anodized to Military Specifications, all contours designed to match the AR-series style