Gun Laws/South Dakota/Reviewed October 3, 2026

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Are AR-15s and assault weapons legal in South Dakota?

What builders in South Dakota are buying

Legal in South Dakota.No feature restrictions in South Dakota, so a standard configuration is fine as it ships.

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Not legal advice. Confirm your own configuration before you buy. All South Dakota gun laws

What the South Dakota statute says

Can a South Dakota city ban AR-15s?

SDCL 9-19-20

“No municipality may pass an ordinance that restricts or prohibits, or imposes any licensure requirement or licensure fee on the possession, storage, transportation, purchase, sale, transfer, ownership, manufacture, or repair of firearms or ammunition or their components.”

No. A prohibited ordinance is void, the attorney general must send a cease and desist order and then sue, and anyone charged under one recovers costs and fees. Counties and townships are bound by matching statutes (SDCL 7-18A-36 and 8-5-13). South Dakota has no assault weapon law.

Statute text checked October 3, 2026. Quotes are the statute's own words.

South Dakota law in detail

  • South Dakota has no assault weapon ban, so a standard AR-15 configuration is legal to buy and build as it ships: pistol grip, adjustable stock, flash hider, detachable magazine.
  • Feature restrictions are a state question, not a federal one. Nothing in South Dakota law turns a common feature into a prohibited one.

The federal rule

There is no federal assault weapon ban; the 1994 federal ban expired in 2004. States that restrict them either name specific models or define an assault weapon by features such as a pistol grip, an adjustable stock, a flash hider or a threaded barrel, which is why featureless and fixed magazine builds exist.

Assault weapons in neighboring states

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Frequently asked questions

Are AR-15s and assault weapons legal in South Dakota?

Yes. South Dakota has no assault weapon ban. The statute: SDCL 9-19-20. Reviewed October 3, 2026.

What is the federal rule on assault weapons?

There is no federal assault weapon ban; the 1994 federal ban expired in 2004. States that restrict them either name specific models or define an assault weapon by features such as a pistol grip, an adjustable stock, a flash hider or a threaded barrel, which is why featureless and fixed magazine builds exist.

How many states restrict assault weapons?

Nationwide by our review: 36 states: no ban; 4: partial or local; 10: ban in effect.

More South Dakota gun laws

Legal disclaimer: This page summarizes state law for general information and is not legal advice. Laws change and local rules can be stricter. Confirm with the South Dakota statutes, the state attorney general or a licensed attorney before buying, building or traveling.