Shop from 15,987,821 total and 4,973,263 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!

15 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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2015 Bowman - Chrome Prospects Autographs #BCAP-JDE

Jose De Leon

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Mike Trout

2014 Topps Five Star - Autographs #FSA-RWA

Reggie Wayne

2016 Panini Origins - [Base] - Red #140

Rookie Autographs - Alex Collins /99

1990 Topps Traded - [Base] #27T

Emmitt Smith [PSA 10]

2014 Bowman Sterling - Autograph Rookie Relics #BSAR-DF

Devonta Freeman

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Al MacInnis

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Patrick Roy /551

2009-10 Upper Deck Be a Player - Signatures - [Autographed] #S-GL

Georges Laraque

2016-17 Upper Deck - [Base] #468

Young Guns - Mitch Marner

2011-12 Upper Deck Artifacts - Autofacts - [Autographed] #A-RM

Ryan McDonagh

2016-17 Panini Select - [Base] - Tri-Color Prizm #91

Concourse - Brandon Ingram

2015-16 Panini Prizm - [Base] - Silver Prizm #317

Rookies - Josh Richardson

2008-09 Topps Signature - [Base] - Autograph [Autographed] #TSA-YJ

Yi Jianlian /6225

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Jaylen Brown

2012-13 Totally Certified - [Base] #256

Jimmy Butler

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. We don't use stock images; 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.