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Available both stock/untouched and Heat Rolled with Progressive Pressure - choose your preference during checkout!
Juno Athletics MR-3 Senior one-piece design, featuring our brand-new PAN-M35J technology. The “MR-3 Senior” is designed for SENIOR PLAY and comes with a UTH50 handle, the stiffest handle available on the market. Allowing for extreme precision through the swing plane accompanied with insane performance.
Offered with a 12.5" barrel; in 3 different weights (25, 26, or 27 ounce) and 5 different end load distributions for you to choose from: Balanced, 1/4oz end load, 1/2oz end load, 3/4oz end load, and a full 1oz end load. The end load is added on top of the natural bat weight (i.e. 26 with 1/2oz end load will weigh ~26.5oz).
These senior bats are manufactured and certified to meet the Senior Softball (SSUSA) bat testing standards.
This bat is sold AS-IS with NO WARRANTY.
- Brand: Juno Athletics
- Sport: Slowpitch Softball
- Barrel Diameter: 2-1/4 in
- Frame: One-Piece
- Certification: SSUSA Senior Softball
- UTH50 handle - Stiffest Handle on the Market
- Pan-M35J Technology
- 12.5" Barrel Length
- Warranty: NONE
- Year Issued: 2026
- Adding our Heat Roll with Progressive Pressure to your order may cause decertification, check with the governing body of your league for clarification
Manufacturing tolerances, performance considerations, and grip weight may cause variations from the listed weight.
OPTION GUIDE: Should I order this bat stock/untouched or Heat Rolled with Progressive Pressure?
If you order your new bat Heat Rolled with Progressive Pressure, it will be delivered to you completely and evenly broken in. This process adds 20-40ft of distance to your solid hits, increases consistency, improves durability and adds 2-3 business days of lead time to your order. If you plan to use the bat in an official game or event, please verify the legality of our process with your league or sanctioning body before use. We (LongballBats.com) do not encourage the use of a Heat Rolled bat in any game or event where it is against the rules. Click here for details about our process!