See our Large Capacity Ammunition Magazines policy summary for a comprehensive discussion of this issue.

Massachusetts prohibits the sale, offering for sale, transfer or possession of a large capacity feeding device unless such device was lawfully possessed on September 13, 1994.1,2 Under Massachusetts law, a “large capacity feeding device” is defined as: “(i) a fixed or detachable magazine, box, drum, feed strip or similar device capable of accepting, or that can be readily converted to accept, more than ten rounds of ammunition or more than five shotgun shells; or (ii) a large capacity ammunition feeding device as defined in federal law as it appeared on September 13, 1994 (that federal statute expired on September 13, 2004). This does not include “an attached tubular device designed to accept, and capable of operating only with, .22 caliber ammunition.”3

Notes
  1. Mass. Gen. Laws ch. 140, § 131M. ⤴︎
  2. An individual with a special license may purchase, possess, and carry certain types of large capacity feeding devices for any lawful purpose. Mass. Gen. Laws ch. 140, § 131(a), 134 3/4 ⤴︎
  3. Mass. Gen. Laws ch. 140, § 121 (referring to the federal Public Safety and Recreational Firearms Use Protection Act, former 18 U.S.C. § 921(a)(31). ⤴︎