• The Safe & Easy Way to Buy & Sell Collectibles

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

Sale - 41% OFF SRP
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adamdavidson47
Sale - 55% OFF SRP
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jaybirdmh93
Sale - 78% OFF SRP
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deweydoubled
Port: 1970-2017
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$265.00 LandgrenLeisure
Sale - 54% OFF SRP
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djorkaeff6

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.

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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

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Shop Recently Added

2016 Topps Throwback Thursday #TBT - Online Exclusive [Base] #67

1957 Topps Football Design - Ernie Banks, Carlos Correa /769

$8.07
1961 Fleer Baseball Greats - [Base] #98

Frank Chance

$10.25
1978 Topps - [Base] #36

Eddie Murray

$18.25
2014 Bowman Sterling - Prospects - Japan-Fractor #BSP-3

Aaron Nola /25

$10.87
2013 Bowman Inception - Prospect Autographs #PA-JF

Jose Fernandez

$29.99
1999 SP Signature Edition - Signatures #TL

Ty Law

$49.99
1991 Star Pics - [Base] #74

Bill Musgrave

$3.24
2014 Panini Select - MVP Selections #5

Tom Brady

$20.40
2014 Topps Chrome - Rookie Autographs #159

Ha Ha Clinton- Dix

$12.25
1975 Topps - [Base] #65

Drew Pearson

$10.25
1985-86 O-Pee-Chee - [Base] #130

Mike Bossy

$5.49
2016-17 Upper Deck - [Base] #225

Young Guns - Jesse Puljujarvi

$8.74
2003-04 Upper Deck Black Diamond - [Base] #150

Brent Burns

$37.56
2015-16 Upper Deck - O-Pee-Chee Update - Retro #U11

Connor McDavid

$12.25
2015-16 Upper Deck Ultimate Collection - [Base] - Spectrum Silver Autographed Jersey [Autographed] [Memorabilia] #106

Ultimate Rookies Auto Jersey - Tier 1 - Daniel Sprong /149

$15.25
2016-17 Panini Aficionado - [Base] #117

Global Reach - Ben Simmons

$8.33
2013-14 Panini Immaculate Collection - Rookie Patch Autograph #133

Gorgui Dieng /99

$14.28
1961-62 Fleer - [Base] #53

Cliff Hagan

$20.25
2013 Upper Deck All-Time Greats - [Base] - Spectrum Silver #76

Michael Jordan /50

$25.25
2012-13 Fleer Retro - 1999-00 Fleer Mystique Fresh Ink #MFI-AD

Adrian Dantley

$3.25

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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.