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Available both stock/untouched and Heat Rolled with Progressive Pressure - choose your preference during checkout!
The Proton Ervine Semicolon USSSA Slowpitch Softball Bat is built on Proton's Series 4 Technology and is available in multiple swing-weight configurations to accommodate a wide range of hitting styles.
Available in Balanced, .5 oz Endload, and 1 oz Endload options, the Ervine Semicolon allows players to select the amount of barrel weighting that best matches their preferred swing profile. The balanced configuration provides more evenly distributed mass, while the half-ounce and full-ounce endload options progressively add more weight toward the end of the barrel.
The Ervine Semicolon features a distinctive cream barrel, navy taper, and red accent rings, with a red semicolon positioned near the end cap. The semicolon design carries the message “your story doesn’t end here,” giving this Series Four release a unique identity beyond its performance-oriented construction.
Built for current USSSA competition, the Ervine Semicolon is approved for USSSA, NSA, and ISA slowpitch play.
- Sport: Slowpitch Softball
- Brand: Proton
- Barrel Diameter: standard 2-1/4 inch
- Barrel Length: 12 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
- Ervine Signature Model
- 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.
