Shop from 16,860,275 total and 5,205,915 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!

16 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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Bryce Harper

2013 Panini USA Baseball Box Set - [Base] #18

Kyle Schwarber

2001 Bowman's Best - Best Bets #BB1

Drew Brees

2015 Panini Prestige - Rookie Jumbo Jerseys - Patches #RJJ-MG

Melvin Gordon

2008 Upper Deck - [Base] #305

Matt Ryan

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Robert Kelley

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High Series Short Prints - Connor McDavid

2016-17 Upper Deck SP Game Used - [Base] - Rainbow Player Age #101

Authentic Rookies - Auston Matthews /219

2017 Upper Deck Team Canada Juniors - [Base] - Premium Materials Auto [Autographed] [Memorabilia] #49

Cody Glass /125

2014-15 Panini Court Kings - Fresh Paint Autographs #FP-RH

Rodney Hood /260

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Karl Malone /99

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Rodney Hood /199

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Anfernee Hardaway

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.