2021 Marucci CAT9 Connect BBCOR Bat Review
The CAT9 Connect pairs Marucci's responsive AZR alloy barrel with a composite handle and the stiff Outer-Locking System, building a true end-loaded two-piece hybrid for hitters who want extra mass behind the ball without the sting of a one-piece alloy.
There's a newer version available. See the 2024 CAT9 Connect — the current model → 8.2/10Price just dropped $169 — that's 48% off and a great deal right now!
Check today's price →The Score
How we score ↗How big and forgiving the barrel is — based on barrel length, construction (one- vs two-piece, alloy vs composite), and how it plays on balls hit off the center. A primary driver of the overall score.
Raw exit velocity and distance. We use measured numbers from freely available independent testing when they exist; otherwise construction and consensus, judged against the certification’s performance ceiling. A primary driver of the overall score.
Comfort and feedback on contact — vibration dampening from the knob/connection, the sting of a stiff one-piece vs a smooth two-piece, and the sound off the barrel. A primary driver of the overall score.
How well it holds up and how the company stands behind it — documented cracking/denting reports, cold-weather behavior, and the brand’s real warranty record. Good to know, but weighted lightly in the score.
Our take on price-for-performance — the overall package weighed against its cost and what comparable bats run. Shown for context; it is NOT factored into the overall score (price changes too often and is personal).
Why this score: The CAT9 Connect scores high on power and feel thanks to the end-loaded AZR barrel and the smooth, stiff OLS connection that dampens vibration. It loses points on swing weight because the load makes it heavy through the zone, and the alloy barrel ceiling keeps it just below the top composites. Marucci durability and closeout pricing make value excellent.
Our Review
Marucci moved the weight forward on the CAT9 Connect, and you feel it: the higher MOI rewards stronger hitters with easy carry while the OLS connection keeps the swing feeling solid and traditional rather than whippy. The new AZR alloy adds a touch more pop and forgiveness than the CAT8 barrel it follows, and the composite handle plus AV2 knob strip out most of the vibration that one-piece alloys leave behind. It is not a light swing, so contact hitters chasing bat speed should look at the balanced CAT9, but power hitters who can handle the load get one of the better hybrid alloys of its era. Durability is the usual Marucci strength here, and at closeout pricing it is an easy value.
Pros & Cons
Pros
- End-loaded AZR alloy barrel delivers extra mass and easy carry for stronger hitters
- Outer-Locking System keeps the two-piece feel stiff and solid while killing vibration
- AV2 anti-vibration knob and composite handle make mishits far more comfortable than a one-piece alloy
Cons
- The end load swings heavy and is not for contact hitters chasing bat speed
- Alloy barrel ceiling still trails the best full-composite BBCOR bats
Full Specifications
| Brand | Marucci |
|---|---|
| Model | CAT9 Connect |
| Model Year | 2021 |
| Certification | BBCOR |
| Sport | Baseball |
| Construction | Two-piece hybrid (AZR aluminum barrel, carbon composite handle, Outer-Locking System connection) |
| Model # | MCBCC9 |
| Drop | -3 |
| Barrel | 2 5/8" |
| Swing Weight | End-loaded |
| MSRP | $349 |
Where to Buy
2021 Marucci CAT9 Connect BBCOR Bat — FAQ
Is the 2021 Marucci CAT9 Connect a good BBCOR bat?
We rate it 8.7/10 (Grade A). The CAT9 Connect pairs Marucci's responsive AZR alloy barrel with a composite handle and the stiff Outer-Locking System, building a true end-loaded two-piece hybrid for hitters who want extra mass behind the ball without the sting of a one-piece alloy.
What drops does the CAT9 Connect come in?
The 2021 CAT9 Connect BBCOR comes in -3.
Is the Marucci CAT9 Connect BBCOR-legal?
Yes — it's BBCOR certified by the WSU Sports Science Lab. Certified to the BBCOR .50 standard — the barrel is regulated to perform like wood, so it’s legal for high school and college.
How much does the 2021 CAT9 Connect cost?
MSRP is $349. We've seen it for $180. We list the lowest price across CheapBats and Amazon on this page.
New to buying bats? Read our bat sizing guide, certifications explained, or browse all guides.
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Sources: Retailer listing - Marucci CAT9 Connect BBCOR (MCBCC9) · Marucci Sports - CAT9 BBCOR (official)