• The Safe & Easy Way to Buy & Sell Collectibles

    Buy from different sellers and get your cards in ONE shipment.

Port: 2012-2012
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Ends: 5d 17h 24m
$2,000.00 cjmvonbrm
Sale - 41% OFF SRP
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Ends: 8d 8h 24m
HawkDynasty
Sale - 49% OFF SRP
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Ends: 0d 16h 24m
dirtcheapcards
Sale - -2% OFF SRP
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Ends: 2d 13h 24m
rick7
Port: 2015-2016
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Ends: 5d 20h 42m
mint39

Find baseball cards and other sports cards on sale in Promotions & Port Sales

Ideal for Set Builders & Player Collectors

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

Buy Cards

Flat Rate Shipping

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

14 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

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1997 Donruss - Power Alley #21

Paul Molitor /2000

$9.90
1973 Topps - [Base] #174

Rich Gossage

$8.00
1974 Topps - [Base] #20

Nolan Ryan

$25.25
2014 Bowman Sterling - Prospect Autographs - Refractor #BSPA-TG

Tyler Glasnow /150

$16.49
2014 Topps Chrome Update - Mega Box World Series Heroes #WSC-17

Roberto Clemente

$10.25
2009 Upper Deck Exquisite Collection - [Base] #166

Rhett Bomar /225

$25.25
2015 Panini Spectra - [Base] #117.1

Rookies - Marcus Mariota (Both hands on ball) /99

$18.25
2016 Panini Prizm - [Base] - Blue Wave Prizm #89

Aaron Rodgers /149

$6.25
2004 Upper Deck Reflections - [Base] #223

Jason Peters /1150

$12.25
2016 Panini Prizm Collegiate Draft Picks - [Base] - Prizms Autographs [Autographed] #178

Draft Picks - DeAndre Washington

$5.25
2015-16 Upper Deck - [Base] #228

Young Guns - Dylan Larkin

$20.23
2015-16 Upper Deck Ultimate Collection - [Base] - Silver Jersey [Memorabilia] #118

Ultimate Rookies - Nikolaj Ehlers /149

$7.75
2016-17 Upper Deck - [Base] #201

Young Guns - Auston Matthews [BGS 9.5]

$280.00
2016-17 Upper Deck - [Base] #249

Young Guns - William Nylander

$19.99
2015-16 Upper Deck - [Base] #201

Young Guns - Connor McDavid

$488.12
1977-78 Topps - [Base] - White Back #1

Kareem Abdul-Jabbar

$9.99
2013-14 Panini Crusade - Apprentice Signatures #23

Matthew Dellavedova

$8.99
2012-13 Panini Immaculate Collection - Trios Materials #24

Evan Fournier, Nicolas Batum, Tony Parker /99

$12.45
2003-04 SP Authentic - [Base] #131

Michael Jordan /3999

$9.00
1990-91 Fleer - [Base] #26

Michael Jordan [BGS 9.5]

$100.00

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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.