Shop from 18,082,224 total and 5,489,636 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!

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The Safe and Easy Way to Buy and Sell Cards Online

Shop Recently Added

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1971 Topps - [Base] #650

Dick Allen

2001 Pacific Prism Atomic - Authentic Game-Worn Jerseys #33

Peyton Manning

1985 Topps USFL - [Base] #65

Steve Young

2015 Topps Finest - [Base] #85

Todd Gurley [PSA 10 GEM MT]

2002 Topps Chrome - [Base] #176

Roy Williams

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P.J. Williams

2017-18 Upper Deck - [Base] #201

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2016-17 Upper Deck SP Game Used - [Base] - Rainbow Player Age #194

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Short Prints - Oscar Lindberg

2016-17 Upper Deck Ice - Glacial Graphs #GG-NK

Nikita Kucherov

1990-91 O-Pee-Chee Premier - [Base] #50

Jaromir Jagr [PSA 10 GEM MT]

2017-18 Panini Prizm - [Base] - Silver Prizms #1

Markelle Fultz

2017-18 Panini Donruss - Significant Signatures #SS-CC.1

Clint Capela

2013-14 Upper Deck Black - Signatures #S-TC

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2003-04 SP Authentic - SP Signatures #LO-A

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Jayson Tatum [PSA 10 GEM MT]

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.