I live in Massachusetts and own a PTR 9mm carbine MP5 clone. Is this legal to attach in Massachusetts? — 1 Answer

Always find out for yourself by learning your states firearm laws and or contacting the ATF. If your PTR9 is the compliant version without a threaded barrel and a 16.2 length, it will bump your firearm into the assault category of two or more features, (pistol grip and telescoping stock). Read bellow....................................................................................................................................... Generally, a semiautomatic, centerfire rifle with a detachable magazine that has two or more features—such as a folding/telescoping stock, pistol grip, or threaded barrel—is restricted, with exceptions for items owned before August 1st, 2024.