Due to COVID-19, shipping is delayed. One of the benefits of COMC is you can ship your items at once at a later date. After you've placed your shipping request we're unable to combine shipments requested on different days.
Shop from 23,718,942 total and 7,421,438 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!

23 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

eBay 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. COMC listings are automatically posted to eBay!

Sell Cards

The Safe and Easy Way to Buy and Sell Cards Online

Shop Recently Added

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Summer Camp - Mike Trout /3628

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2016 Bowman Draft - Chrome - Refractor #BDC-60

Draft Picks - Kyle Lewis

2006 SPx - Winning Materials Veteran #WMV-TP

Troy Polamalu

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Clyde Edwards-Helaire

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Amari Cooper

2011 Topps - [Base] - Gold #151

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2019-20 SPx - UD Black Lustrous Rookie Auto Patches #LR-ND

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2019-20 Upper Deck - [Base] #471

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2019-20 Upper Deck - [Base] #201

Young Guns - Jack Hughes

2019-20 Upper Deck - UD Canvas #C214

Young Guns - Igor Shesterkin

1995-96 Donruss Elite - Lemieux Series #4

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Donte DiVincenzo

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Harry Giles

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Ja Morant

2018-19 Panini Contenders Optic - [Base] - Blue Prizm #113.2

Rookie Variation Season Ticket - Grayson Allen /49

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.