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  • 2 1/4 Inch Barrel Diameter

  • 12.00 Inch Barrel Length

  • Slightly End Loaded Feel (We Still Believe That Nearly Any Type Of Hitter Should Be Able To Handle It; Even Contact Hitters)

  • One-Piece, All-Alloy Slow Pitch Bat

  • Dual Stamped With ASA (USA Softball) & USSSA Certification. Also Features NSA & ISA Certifications

  • Colorway: Black | Grey | Gold & Red Graphics

  • Single Wall Alloy Design

  • SC4 Alloy - A Strong & Well-Performing Alloy That Is Able To Be Made With A Thin Single Wall Design

  • Designed & Assembled In The USA

  • Full Twelve (12) Month Manufacturer's Warranty

DeMarini Ultimate Weapon 12" Dual Stamp Slow Pitch Softball Bat: WTDXUWE20

There are leagues and tourneys out there that won't permit the use of composite material slow pitch bats. And when a player runs into one of these leagues or tourneys...they turn to the all-alloy Ultimate Weapon from DeMarini!

Bat Benefits

The Ultimate Weapon does not take the easy route to being an alloy slow pitch bat. Even though DeMarini understands that alloy bats are restricted in performance when compared to their composite counterparts, they still know that players required to use these alloy bats want the best bat possible! 

DeMarini builds this Ultimate Weapon with high quality SC4 Alloy that will deliver pop even with the bat only having a single wall design (typically, the multi wall alloy bats are considered higher performing than single wall alloy bats). As well, this bat features a one-piece design which some stronger hitters will enjoy. The one-piece design will create a stiff feel at contact with a softball. A lot of power hitters enjoy that stiff feel because they believe that all their power gets put into the softball at contact and nothing gets lost in a "flex" feel that can be found on a two-piece bat.

When a player gets this bat in their hands, we think most will find it to be slightly end loaded. That being said, we still believe that power and contact hitters alike should be able to swing this bat with success.


DeMarini started out as a slow pitch softball company and it is important to them to keep their slow pitch customers happy. Because of that, they extend a twelve (12) month warranty on this bat. If you buy this bat from JustBats and notice a structural issue or a drop in performance within one (1) year from the purchase date, please reach out to the Bat Experts from JustBats. The Bat Experts know the warranty process for DeMarini and will get you organized so that you can contact DeMarini and complete a successful warranty replacement.

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Have a question about the DeMarini Ultimate Weapon 12" Dual Stamp Slow Pitch Softball Bat: WTDXUWE20? Ask our team of experts and they will respond within 24 hours.

Is this a 1.20 or a 1.21 bat?
Since the DeMarini Ultimate Weapon ASA / USSSA Slow Pitch Softball Bat: WTDXUWE20 has the USSSA stamp, it will contain the BPF rating of 1.20. This bat is dual stamped with the ASA certification as well.
What is the difference in this model from the last one?
Bill Harris
The DeMarini Ultimate Weapon 12" Dual Stamp Slow Pitch Softball Bat: WTDXUWE20 features the same 12 inch barrel length, slight end-loaded swing weight and SC4 alloy barrel compared to the prior DeMarini Ultimate Weapon Single Wall Slow Pitch Softball Bat: WTDXUWE. The main difference would be the newer DeMarini Ultimate Weapon 12" Dual Stamp Slow Pitch Softball Bat: WTDXUWE20 will feature the USA Softball stamp; this stamp serves the same purpose as the prior ASA one.
No results. If you searched for a specific term, please broaden your search. If you have already done this and still cannot find what you're looking for, please submit your question and we'll get back to you within 24 hours. Thanks!

In 1992, DeMarini Sports had something to celebrate. The three-year-old company had climbed a rung on the proverbial ladder of success, moving its world headquarters from a dirt-floored barn to a slightly larger metal shack. "It was a big move for us," recalled Ray DeMarini from the batting cage of DeMarini Sport’s present-day Bat Industrial Complex. "The new shop was larger, more storm resistant, and -best of all- it had a heater."

In the early days, DeMarini Sports hardly made a blip on the radar screen of softball. With no retailers and virtually no advertising budget, DeMarini grew steadily by selling high-performance bats directly to customers. While established companies made "juiced" bats for the pros and ordinary bats for the public, DeMarini focused on making one line of high-performance bats for pros and amateurs alike. This approach, combined with a passion for the sport, led to the greatest innovation in softball history - the world’s first multi-wall bat: the DeMarini Doublewall.

Released in 1993, the DeMarini Doublewall was the world’s first multi-wall bat. Like a modern golf driver or oversized tennis racket, the Doublewall had a giant "sweetspot," which allowed average players to hit like pros. DeMarini’s sales exploded, and before long opposing bat manufacturers to notice. DeMarini - a homegrown company led by a softball fanatic - had shaken the establishment silly.

To understand the rise of the DeMarini Dynasty, you need to know Ray DeMarini. A cult hero among avid players, Ray DeMarini emerged on the professional softball scene at the age of 40, a veritable geriatric among younger players. With a scientific approach to training, a batting speed of 96 miles-per-hour and a bombastic attitude, DeMarini fast earned a reputation as a savage competitor.

In June of 1987, ESPN launched a nationwide search for a hardcore player to advise on a series of instructional softball videos. When approached by producer Erich Lytle, the biggest boys in softball repeatedly spoke of a five-foot-seven softball giant—Ray DeMarini. DeMarini had mastered reflex hitting, a technique that drops the ball squarely between the infield and outfield. Impressed with DeMarini's knowledge and scientific approach to training, Lytle not only hired Ray as an advisor—he hired him as the host. Together, they produced Ray DeMarini's Reflex Hitting System, ESPN's most successful home video to date.

Having garnered national recognition through ESPN, Ray turned his efforts toward designing a high-performance bat for the masses. To accomplish this, he needed an engineer. "Not just an engineer," he said, "but a boot-strapping rocket scientist who could build an empire with pocket change." Ray's call was answered by Mike Eggiman. Having grown up on a farm, Eggiman was adept at making the most of a situation. Case in point: the company's first piece of automated bat-making equipment had the heart of an abandoned washing machine.

With Eggiman as Chief Engineer, DeMarini Sports delivered a series of industry firsts: the first multi-wall bat (Doublewall Distance), the first high-performance bat for massive players (Fatboy) and the first high-performance youth bat (Black Coyote).

In 2000, DeMarini joined forces with Wilson Sporting Goods to develop the next generation of hitting technology. Ray believed it was a perfect fit, as both companies shared a vision of developing game-enhancing equipment for avid players. What’s more, the companies had complimentary products: Wilson was the leader in gloves, balls and protective gear, while DeMarini made the world’s finest bats. According to Chris Considine, Vice President/General Manager of Wilson Sporting Goods: "The thing that struck me most about DeMarini was their passion for sports and their true competitiveness.

Within a year, DeMarini unveiled the industry’s first concept bat, the $35,000 F1. Secured under lock and key at the DeMarini Bat Industrial Complex in Hillsboro, Oregon, the F1 served as a technological storehouse for future products, including DeMarini’s landmark Half & Half system.

In December 2001, 12 years after the genesis of DeMarini Sports, Ray DeMarini died of cancer in his Northwest Portland home. He was 55. The next summer, the Portland Metro Softball Association paid homage to the “King of Softball” with the dedication of Ray DeMarini Field. Formerly known as Delta #1, the field was DeMarini’s favorite place to test bats during the early days of business. Ray DeMarini—bat maker and player extraordinaire—was remembered for his high-performance softball bats and unwavering encouragement of everyday players. Today, a 40-foot sign announcing RAY DEMARINI FIELD graces the outfield, and an interpretive display chronicling Ray’s life greets players as they register for games.

More "Insane Dedication to Performance" is in store for tomorrow.

Demarini Customer Service

DeMarini Ultimate Weapon 12" Dual Stamp Slow Pitch Softball Bat: WTDXUWE20
Approved For ASA ISA NSA USA Softball USSSA Dual Stamp
Barrel Diameter 2 1/4
Barrel Length 12 Inch
Bat Construction One-Piece
Bat Type Softball
Color Black Grey Red
Deals Personalization Eligible
Hitting Style Contact Hitter Power Hitter
Material Aluminum
Softball Bats Slow Pitch
Swing Weight Slightly End-Loaded
Vendor DeMarini
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