Under Massachusetts law, Assault Weapons are defined in several ways. Among other things, the law sets out a list of weapons, by make and model, that are prohibited. The law further states that “copies or duplicates” of the listed weapons are also banned. Separately, there is a list of features that make certain guns Assault Weapons.
The Attorney General’s Enforcement Notice describes two tests the AGO uses to identify guns that are “copies or duplicates” because those guns are sufficiently similar to be considered “copycats” of the listed guns.
As explained in the Notice, “copies” or “duplicates” of banned Assault Weapons include semiautomatic weapons that can accept a detachable ammunition magazine and that meet one of the following tests:
The weapon’s internal functional components are substantially similar to the construction or configuration of a weapon that is expressly banned under the law (such as a Colt AR-15 or a Kalashnikov AK-47);
The weapon has a receiver that includes or accepts key operating components that are interchangeable with those of a banned weapon. The relevant operating components may include, but are not limited to:
1) the trigger assembly;
2) the bolt carrier or bolt carrier group;
3) the charging handle;
4) the extractor or extractor assembly; or
5) the magazine port.