Stoner 63 & 63A machineguns, 1963–1970
Official wording
Stoner, Model 63 and 63A, machineguns, all variations, as originally mfd. from 1963 through 1970.
What this entry requires
- ATF REQUIRESMade 1963–1970 (ATF’s dates)ATF: “originally mfd. from 1963 through 1970”
- INFOStill an NFA firearm; only registered examples transfer, with ATF approval (26 U.S.C. 5812, 5861).
Editorial facts · Our research
Source
- Official wording
- ATF P 5300.11, April 2025 edition · Section IV · PDF p. 87 ↗ · ATF original ↗
- Entries
- 1 line
- Verbatim check
- Checked against the PDF text before every release
- Editorial facts
- Confidence: High · Last revised 18 October 2026 (Evidence pass) · How we rate confidence
- References
- 1. Wikipedia, “Stoner 63” ↗, country: infobox origin United States
- 2. Wikipedia, “Stoner 63” ↗, calibers: infobox cartridge 5.56×45mm NATO
- Fact tags
- ATF the ATF wording states it.
- REF ¹ an outside reference supports it; the number points to the list of references.
- ESTIMATE an approximate or indirect reading, for example the production range of the base model.
- NO CITATION we haven’t attached a reference for this fact; it’s our editorial reading, not ATF’s.
- Source checked
- 20 October 2026: ATF’s page still lists the April 2025 edition
- Corrections
- None
Historical context

Image: Wikimedia Commons, “Stoner 63 Light machinegun, belt-fed.png” by Advanced Research Projects Agency, Public domain. Retrieved October 2026.
Summary: Wikipedia, “Stoner 63”. Text CC BY-SA 4.0.
FROM WIKIPEDIA
The Stoner 63 is a 5.56×45mm NATO modular weapon system. Using a variety of modular components, it can be configured as an assault rifle, carbine, top-fed light machine gun, belt-fed squad automatic weapon, or as a vehicle mounted weapon. Also known as the M63, XM22, XM23, XM207 or the Mk 23 MOD 0 machine gun, it was designed by Eugene Stoner in the early 1960s. Cadillac Gage was the primary manufacturer of the Stoner 63 during its history. The Stoner 63 saw very limited combat use by US military units during the Vietnam War. A few were also sold to law enforcement agencies.
