What bat is legal for AABC 15U and older?
AABC 15U and older, current rules: Use a wood bat, no longer than 42 in and no wider than 2.61 in at the barrel. Metal and composite bats aren't allowed, except the Baum Bat and the Zinger Composite Bat, which the rule names. None of the bats on this site are allowed here.
Checked Oct 27, 2026. Confirm with your league before you buy: local leagues and tournaments can set their own rules, stricter or looser than the national ones. The rule in full and its sources.
The rule in full
Current rules
| Bats allowed | Wood; Baum Bat and Zinger Composite Bat (named exceptions) |
|---|---|
| Drop limit | None stated |
| Barrel, largest | 2.61 in |
| Length, longest | 42 in |
- A bat found dented or damaged is taken out of play and the team is warned
- After a warning, using one makes the batter out (Rule 221(h))
AABC ages are the player's age on April 30, and the cutoffs move a year each season: for 2026, Ken Griffey Jr. is born on or after May 1, 2010, Mickey Mantle 2009, Don Mattingly 2008 and Connie Mack 2007 (each with a grade exception in the handbook); Stan Musial has no age limit. This covers AABC's Ken Griffey Jr. (15U), Mickey Mantle (16U), Don Mattingly (17U), Connie Mack (18U) and Stan Musial (adult) divisions in tournament play. The 2026 handbook prints the barrel limit as 2.61 in. A local league can set its own rules, so check with yours.
Sources: aabc.us. Checked Oct 27, 2026.