2026 Louisville Slugger Atlas USA Baseball
Legal in, 2027 season:
- Little League: Minors and Majors, Intermediate 50/70 and Junior League
- USSSA travel ball: 7U, 8U-9U, 10U, 11U-12U, 13U (-5 only)
- Cal Ripken: Rookie, Minor (10U), 12U (Major/60 and Major/70)
- Babe Ruth: 13-16
- PONY: Shetland 6U, Pinto 8U, Mustang 10U, Bronco 12U, Pony 14U
- Diamond Youth (formerly Dixie Youth): 6U and 8U, AAA, Majors and O-Zone
- Dixie Boys: 13-14 (Junior Boys and Boys), 15U
- AABC: 8U to 13U
- NABF: 10U to 14U
League rules checked Oct 26-27, 2026; each league page names its sources. Confirm with your league before you buy.
Store prices, used and new, are coming: we're connecting stores now.
Newer model: 2027 Louisville Slugger Atlas 2.0 USA Baseball (see what changed).
Specs
| Stamp | USA Baseball (USABat) |
|---|---|
| Drops | -11, -5 |
| Barrel | 2 5/8 in |
| Build | one-piece alloy |
| Swing weight | balanced |
| Model codes | WBL4129010, WBL4166010 |
Sizes
Length in inches / weight in ounces.
| -5 | 30/25, 31/26, 32/27 |
|---|---|
| -11 | 26/15, 27/16, 28/17, 29/18, 30/19, 31/20 |
Which length and drop? See what size bat your kid needs.
Specs checked Oct 26, 2026 against www.slugger.com, betterbaseball.com. A blank means no source we trust states it.
More: all Louisville Slugger bats and all USA Baseball bats.