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Shop from 18,849,515 total and 5,705,544 unique sports cards. Baseball, Football, Hockey, and Basketball.

Ideal for Set Builders & Player Collectors

Build one order over time from multiple sellers, pay shipping once, and receive your cards in one package.

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Flat Rate Shipping

Buy now, ship later! Purchase over time from many sellers & ship once!

18 Million Cards Under One Roof

We house millions of sports cards from thousands of sellers and provide industry renowned customer service!

High resolution scans of the front & back of every card.

Easy & Fun Sports Card Flipping

Filter by team, player, set & more. Purchase, instantly relist, & flip for profit.

Buy Baseball Cards Online

We Do The Work To Sell Your Cards

Research & identify your collectibles

Evaluate condition & value

Scan the front & back of every card

Advertise to find buyers

Store & insure consigned collectibles

Resolve customer service needs

Securely package & ship to buyers

We Have Other Unique Services

Mailbox Services

Grading Services

Amazon Integration

Historical Sales Data

Sell Baseball Cards Online

A Different Way to Sell Cards

We identify, scan, list, store, insure, package, and ship - just send us your sports cards, trading cards, and collectibles. All COMC listings can be automatically posted to Amazon!

Sell Cards

The Safe and Easy Way to Buy and Sell Cards Online

Shop Recently Added

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2017 Topps Now - Topps Online Exclusive [Base] #655

Addison Russell /1047

2018 Topps Gold Label - [Base] - Class 1 #99

Ronald Acuna

2014 Topps Heritage High Number - [Base] #H590

Jose Ramirez

2007 Score - Hot Rookie #HR-5

Calvin Johnson [BCCG Mint]

2016 Panini Absolute - Rookie Roundup #6

Ezekiel Elliott

2018 Upper Deck USA Football - U19 Future Swatch #FS-12

Gemon Green

2008 Upper Deck Exquisite Collection - [Base] #152

Matt Forte' /199

2017 Donruss Optic - [Base] - Red and Yellow #199

Rated Rookies - Alvin Kamara

2017-18 O-Pee-Chee Platinum - Rookie Autos #R-OT

Owen Tippett

1975-76 Topps - [Base] #199

Clark Gillies

2013-14 In the Game Between the Pipes - Current Crop - Silver #CC-01

Corey Crawford /180

2003-04 Upper Deck Trilogy - Script #S3-BY

Mike Bossy

1999-00 Topps Gold Label - [Base] - Class 3 #33

Vince Carter

1961-62 Fleer - [Base] #24

Phil Jordan

2012-13 Panini Prizm - [Base] #205

Jimmy Butler

1993-94 Topps Stadium Club - [Base] - 1st Day Issue #308

Draft Pick - Anfernee Hardaway

2017-18 Panini Status - Signatures #SG-RAD

Ryan Arcidiacono

COMC (Check Out My Collectibles) is a unique marketplace for buying and selling sports cards, gaming cards, comics, and more. We have a great selection of singles, memorabilia cards, autographed cards, and rookie cards. Our listings include front and back scans of every card. We're also a great place to sell cards. Do you want to know more about card values? Learn about our suggested prices.