M21
From Wikipedia, the free encyclopedia
M21 or M-21 may refer to:
- Messier 21 (M21), an open cluster in the constellation Sagittarius
- M21 Sniper Weapon System, a sniper rifle
- Zastava M21, a Serbian assault rifle
- M-21 (Michigan highway), a highway that connects the cities of Flint and Grand Rapids in Michigan
- Lockheed M-21, an American reconnaissance drone