FREE Ground Shipping to the Continental USA!
Available both stock/untouched and Heat Rolled with Progressive Pressure - choose your preference during checkout!
The Proton Series 4 Hot Butter Two-Piece USSSA Slowpitch Softball Bat features a 12.75-inch barrel and two-piece composite construction, combining a responsive barrel with a smoother overall feel through contact.
Built with Proton's new Series 4 Technology, the Hot Butter is designed for consistent barrel performance, durability, and maximum allowable performance within current USSSA standards. The two-piece construction allows the barrel and handle to work independently through contact, while the 12.75" barrel provides a versatile combination of hitting surface and barrel control.
The Hot Butter is available in three swing-weight configurations: Balanced, .5 oz Endload, and 1 oz Endload, allowing players to choose between a more evenly distributed swing feel or progressively more mass concentrated toward the end of the barrel.
Designed for current USSSA slowpitch competition, the Series 4 Hot Butter is approved for USSSA, NSA, and ISA play.
- Sport: Slowpitch Softball
- Brand: Proton
- Barrel Diameter: standard 2-1/4 inch
- Barrel Length: 12.75 inch barrel for a long, forgiving hitting surface that still swings quick
- Certification: USSSA, NSA, ISA Leagues & Tournaments
- Two-piece composite construction for independent barrel flex and reduced hand vibration
- NEW Series 4 Technology, Proton's latest composite platform, built for next-level performance, consistency, and durability
- Built to maximum allowable performance under the USSSA standard
- Proton's 100% "Pass, Last and Gas" Guarantee
- Year Released: 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.
QUESTION: Should I order this bat stock/untouched or Heat Rolled with Progressive Pressure?
ANSWER: 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!
QUESTION: Which end load should I choose: balanced, half ounce, or full ounce?
ANSWER: Start with how you hit. Balanced puts no extra weight in the barrel and gives you the fastest, most controllable swing, which suits contact hitters, gap hitters, and anyone who values bat speed over mass. Half ounce adds a modest amount of end weight for more carry without changing the way the bat feels through the zone, and it is the most popular pick for hitters who want a little of both. Full ounce puts real mass behind the ball and is built for power hitters who already swing end-loaded bats and can keep their hands quick with the extra weight. If you're unsure, the half ounce is the safest middle ground. If the end load slows your swing down, go lighter. Bat speed still wins.
QUESTION: What is Proton's "Pass, Last and Gas" guarantee?
ANSWER: It is Proton's promise about the three things slowpitch hitters worry about most. Pass means the bat will pass the bat testing that USSSA, NSA, and ISA tournaments run at the gate, so you are not getting a bat that is illegal the day you buy it. Last means it is built to hold up over a season instead of going dead in a month. Gas means it hits. Proton backs all three with a 100 percent guarantee on top of its one year warranty, which is more than most manufacturers are willing to put in writing.
