State Legality Matrix / Magazine Capacity Limits / Massachusetts

Massachusetts Magazine Capacity Limit

Statute-cited, last verified 2026-07-10

Restricted

Yes. Bans sale, transfer, and possession of magazines over 10 rounds not lawfully owned before September 13, 1994. Limit: 10 rounds. Effective 1998-10-21.

Controlling law: Mass. Gen. Laws ch. 140, § 131M

Litigation Status and Details

Large-capacity feeding devices lawfully possessed before September 13, 1994 are grandfathered.

Federal baseline

There is no federal magazine capacity limit; the 1994 federal assault weapons ban expired in 2004.

Scope: Detachable magazine round-count restrictions for handguns and long guns. States not listed have no capacity limit.

Frequently Asked Questions

Does Massachusetts have a magazine capacity limit?

Yes. Bans sale, transfer, and possession of magazines over 10 rounds not lawfully owned before September 13, 1994. Limit: 10 rounds. Effective 1998-10-21. Controlling law: Mass. Gen. Laws ch. 140, § 131M.

What law covers magazines in Massachusetts?

The controlling law is Mass. Gen. Laws ch. 140, § 131M. Bans sale, transfer, and possession of magazines over 10 rounds not lawfully owned before September 13, 1994.

When did Massachusetts's magazine restriction take effect?

Massachusetts's rule took effect 1998-10-21. Large-capacity feeding devices lawfully possessed before September 13, 1994 are grandfathered.

Is there a federal magazine capacity limit?

There is no federal magazine capacity limit; the 1994 federal assault weapons ban expired in 2004.

Compliant Magazines for Capped States

Living under a 10-round cap does not mean running junk magazines. These are factory and OEM-quality 10-round options that feed reliably and fit flush.

MDT Polymer AICS .308/6.5 Creedmoor 10-Round Magazine product image
Magazines & Feeding • $39.99

MDT Polymer AICS .308/6.5 Creedmoor 10-Round Magazine

10-round MDT polymer AICS short-action magazine for .308 Winchester and 6.5 Creedmoor precision rifle chassis systems.

  • 10-round capacity
  • AICS short-action pattern
  • .308 / 6.5 Creedmoor family
$40.89
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Ruger Mark IV 22/45 .22 LR 10-Round Factory Magazine product image
Magazines & Feeding • $44.59

Ruger Mark IV 22/45 .22 LR 10-Round Factory Magazine

Factory OEM 10-round steel magazine for the Ruger Mark IV 22/45 (and 22/45 Lite) chambered in .22 LR.

  • 10-round capacity
  • .22 LR
  • Steel body, polymer follower
$37.79$44.59Save 15%
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FN PS90 10-Round Compliant Magazine product image
Magazines & Feeding • $51.59

FN PS90 10-Round Compliant Magazine

Factory FN OEM 10-round magazine for the most restrictive state capacity limits.

  • 10-round capacity
  • 5.7x28mm
  • Translucent polymer body
$47.99$51.59Save 7%
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CMMG .350 Legend 10-Round Magazine product image
Magazines & Feeding • $22.89

CMMG .350 Legend 10-Round Magazine

10-round single-stack magazine for .350 Legend AR-15 rifles

  • 10 rounds
  • .350 Legend
  • Single-stack polymer
$33.79
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