Bats

Baseball

Sale

USSSA Certified

Bat Certification

Length

16OZ

17OZ

18OZ

19OZ

20OZ

21OZ

22OZ

23OZ

24OZ

25OZ

28OZ

29OZ

30OZ

Other/Unknown

Weight

Drop

Marucci

Louisville Slugger

Rawlings

Brand

Used

Condition

Composite

Alloy

Hybrid

Bat Material

Kid Pitch (9YO-13YO)

Age Group

2 5/8"

2 3/4"

Barrel

2023

2022

2020

2019

2018

2017

2016

2015

Release Year

## Marucci CAT Baseball Bat



The Marucci CAT is a bat designed for superior performance straight out of the wrapper. Engineered with a precision-balanced and ring-free barrel construction, the CAT series allows for maximum swing speed, control, and an expanded sweet spot for a more forgiving hit. From its ultra-responsive alloy to its ergonomically designed handle, every aspect of the Marucci CAT has been crafted to elevate a player's game and provide comfortable contact at the plate.

 
**Perfect bat for:** Young players looking for modern performance and extra comfort on contact. 



### Key features include: 




* **AZ105** Super Strength Aluminum Alloy:** Offers a thinner barrel wall for a higher response rate and increased durability.
* **Multi-Variable Wall Design:** Expands the sweet spot and reduces dead spots for more consistent performance across the barrel. 

**Anti-Vibration Knob:** Provides a better feel and reduces negative vibrational feedback to the hands, ensuring comfortable swings.
* **Precision-Balanced Barrel:** Results in a lower M.O.I. and balanced feel for precision and control.
* **Ring-Free Barrel Construction:** Allows for more barrel flex and increases performance without "dead" spots.
* **Micro-Perforated Soft-Touch Grip:** Enhances comfort and tack, promoting better control and reducing hand fatigue during swings.
* **One-Piece Alloy Construction:** Delivers a clean, consistent, traditional feel with built-in durability and performance.



### Top competitors comparison: [DeMarini CF](https://sidelineswap.com/shop/baseball/bats/demarini/cf-20/l59398) and [Louisville Slugger Meta](https://sidelineswap.com/shop/baseball/bats/louisville-slugger/meta/l59403)

Compared to leading competitors like the DeMarini CF and Louisville Slugger Meta, the Marucci CAT series distinguishes itself with its one-piece alloy construction and AZ105 Super Strength Aluminum Alloy, which offers hitters a traditional, yet highly responsive feel. While the DeMarini CF is known for its two-piece composite design that emphasizes flexibility and feel, and the Louisville Slugger Meta prides itself on its three-piece composite build for balance and speed, the Marucci CAT excels in delivering direct feedback, explosive power, and a classic feel, making it a solid choice for players who appreciate the simplicity and effectiveness of alloy bats.


###  Progression of the Marucci CAT series 


Here is a list that details the progression of this series, highlighting the main features and advancements with each new model.

**2014 - [CAT6](https://sidelineswap.com/shop/baseball/bats/marucci/cat-6/l7498)**



* Building on the ring-free barrel design, Marucci releases the CAT6 with an extended, optimized barrel made from the AZ3000 alloy.
* Patented anti-vibration knob takes on additional weight for a more balanced feel and faster swing speeds.

**2017 - [CAT7](https://sidelineswap.com/shop/baseball/bats/marucci/cat-7/l7247) & CAT7 CONNECT**



* CAT7 and CAT7 Connect are introduced, featuring the upgraded AZ4X alloy for improved performance.
* CAT7 has a one-piece alloy construction, while CAT7 Connect offers a two-piece hybrid design with a carbon composite handle.
* Both models feature an increased sweet spot and an upgraded anti-vibration knob (AV2). 


**2019 - [CAT8](https://sidelineswap.com/shop/baseball/bats/marucci/cat8-2/l7709), CAT8 CONNECT, CAT COMPOSITE**



* CAT8, CAT8 Connect, and CAT Composite are launched.
* The barrels of CAT8 and CAT8 Connect are constructed using the new AZ105 alloy for higher performance at the sweet spot.
* Introduction of SDX EXT connection technology for a stiffer connection and improved energy transfer.
* CAT Composite, a two-piece composite bat, is introduced with SDX EXT and ring-free barrel construction. 


**2021 - [CAT9](https://sidelineswap.com/shop/baseball/bats/marucci/cat9-2/l163499) and [CAT9 Connect](https://sidelineswap.com/shop/baseball/bats/marucci/cat9-connect-3/l164210)**



* CAT9 and CAT9 Connect are released with the new AZR alloy for a more responsive microstructure.
* CAT9 features a 2nd Generation AV2 Anti-vibration knob and additional weight below the hands for better control.
* CAT9 Connect introduces the Outer-Locking System (OLS) for an even stiffer connection and virtually zero vibrations.

**2023 - [CATX](https://sidelineswap.com/shop/baseball/bats/marucci/cat-x/l175792), [CATX Connect](https://sidelineswap.com/shop/baseball/bats/marucci/cat-x-connect/l175804), and [CATX Composite](https://sidelineswap.com/shop/baseball/bats/marucci/cat-x-composite/l175805)**



* The CATX, CATX Connect, and CATX Composite represent a significant generational change.
* CATX features AZR Alloy with new barrel profiles and an ergonomic, custom-shaped tapered handle.
* CATX introduces Liquid-Gel anti-vibration technology.
* CATX Connect and CATX Composite maintain the OLS and introduce S-40 composite handle for increased performance and energy transfer.
* Barrel profiles are reshaped for better balance, with a focus on data from the Baseball Performance Lab.


###  What people are saying (edited for clarity and brevity)

**PROS**



* This bat is one of the best options available for young players. It is USA-regulated and commonly used in little league. It offers excellent control and feel and has a large sweet spot for hitting home runs.
* I bought a new bat for my son a month ago since he had outgrown his old one. The new bat is longer and heavier, and he's happy with it. His game has improved since he started using it.
* Marucci's bat is lightweight, durable, and has an old-school sound when solid contact is made. My son has been hitting great with it.

**CONS**



* I like Marucci bats, but this is the 3rd time I've bought one that's heavier than listed. Bought a 28" 17 oz 2022 USA Cat for my 8 y/o son, but it weighed 19.3 oz. Will keep trying with Marucci, but they all tend to be heavier than listed.
* Purchased a 29” 18oz. bat, but it weighed 20.3 oz.
* I bought this product for my son and when I asked him to rate it, he gave it four stars. He explained that he didn't give it five stars because he feels too much vibration upon hits and it doesn't have the best pop.


### **Certification**: USA


### Expert Notes ([Tony from BatExperts](https://sidelineswap.com/batexperts))

The Marucci CAT is designed for Little League. It has that USA stamp, which means it has a lightweight feel and good control. The CAT has an affordable price point, so it won't break the bank. A lot of parents get this bat specifically because it's a quality bat with a good bang for the buck.  


Pop: ⭐⭐⭐

Durability: ⭐⭐⭐

Vibration: ⭐⭐⭐

 
<span style="text-decoration:underline;">**Mid-balanced**</span> or End loaded?

Prime 919

### About the Louisville Slugger Prime 919

Louisville’s Slugger’s Prime 919 bat is BBCOR certified and one of the best performing two-piece composite bats on the market. With a large barrel and lighter swing weight, the Prime 919 is a balanced bat with a mix of power and speed. Brand new in 2019, the patented VCX Technology improves the durability and weight distribution of the bat to control vibrations and enhances the soft feel on contact. The RTX end cap contributes to a larger barrel and provides a larger sweet spot for both power and contact hitters alike. The new LS PRO Comfort Grip is an upgrade from the traditional Lizard Skin Grip in prior years and improves the cushion and tackiness of the grip.

Velo

### Expert Notes
The longest lasting metal bat series on the market is still at its peak. Rawlings legendary Velo series returned in 2022, with a Velo ACP release that I’ve heard hitters say offers unparalleled balance at the plate. Over time, the Rawlings Velo series has evolved by incorporating the ACP (Accelerated Carbon Performance) line that adds extra carbon in the barrel, which we’ve heard does a lot to increase pop. While Velo’s aren’t the best looking bats you’re going to find, they make up for the plainness with top-notch performance. Rawlings’ resilient Velo series should continue to be a favorite for hard-nosed hitters who prefer production over flash.

CAT Composite

Model

United States (All)

US: Midwest

Seller Location

Sold Items Only

Item Type

Elite Sellers

Quick Shippers

Shops (Businesses)

Seller Type

(Used)

Used Marucci Cat 9 Msbc910 Usssa 2 3 4" Barrel Bat 31" -10 Drop 11506-s000251127

Used Marucci Cat 9 Msbc910 Usssa 2 3 4" Barrel Bat 31" -10 Drop 11506-s000251821

Used Marucci Cat 8 Mcbc88g Usssa 2 3 4" Barrel Bat 31" -8 Drop 11506-s000248365

Used Louisville Slugger Prime 919 Wtlslp919x10 Usssa 2 3 4" Barrel Bat 31" -10 Drop 11506-s000242336

Used Marucci Cat 7 Msbc7x10 Usssa 2 3 4" Barrel Bat 31" -10 Drop 11506-s000212332

Used Marucci Cat Composite Msbccp8 Usssa 2 3 4" Barrel Bat 31" -8 Drop 11506-s000242337

Used Rawlings Velo Acp Hybrid Usssa 2 5 8" Barrel Bat 29" -8 Drop 11506-s000193836

Save up to 70% off the best selection of 21 oz baseball bats. Shop safely with SidelineSwap's Buyer Protection Guarantee, discover rare and hard-to-find items, and get tips from our community of experts.

21 oz Baseball Bats

Shop by Bat Certification

Related Searches in 21 oz Baseball Bats

Top Brands in 21 oz Baseball Bats