• The Safe & Easy Way to Buy & Sell Collectibles

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

Sale - 64% OFF SRP
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jordanbrown2335
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Sale - 72% OFF SRP
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MattsSportsCards3422

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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1999 Bowman - Autographs - Blue #BA6

Darnell McDonald

$10.25
2017 Topps Heritage - [Base] #214.1

Rookie Stars - Aaron Judge, Tyler Austin (Base)

$17.54
1959 Topps - [Base] #525

Jim Coates [Good to VG‑EX]

$10.25
2015 Topps Tier One - Acclaimed Autographs #AA-CD

Carlos Delgado /399

$9.75
2011 Donruss Elite Extra Edition - Franchise Futures Signatures #153

Rookie Davis /653

$14.70
2007 Playoff Prestige - [Base] #189

Patrick Willis

$39.97
2016 Panini Contenders - [Base] - Playoff Ticket #286

Rookie Ticket Variations - Nick Kwiatkoski /99

$15.00
2014 Panini Contenders - Rookie Ink #25

Aaron Donald

$10.25
1998 Upper Deck Black Diamond Rookies - [Base] #91

Peyton Manning

$30.00
2015 Panini National Treasures - Rookie Material Signatures RPS #RMSR-PD

Phillip Dorsett /99

$13.20
2016-17 Upper Deck Tim Hortons Collector's Series - Franchise Force #FF-11

Alexander Ovechkin

$7.24
2014-15 Upper Deck - [Base] #248

Evgeny Kuznetsov

$23.74
2005-06 SP Authentic - [Base] #150

Peter Budaj /999

$9.99
1979-80 Topps - [Base] #261

New NHL Entries

$12.50
2016-17 Upper Deck - [Base] #451

Young Guns - Patrik Laine

$69.99
2016-17 Panini Donruss Optic - [Base] - Holo #151

Ben Simmons

$80.25
2009-10 Panini Prestige - [Base] #207

Stephen Curry

$25.25
2015-16 Panini Revolution - [Base] - Sunburst #36

Russell Westbrook /75

$8.25
2016-17 Panini Totally Certified - Rookie Roll Call Autographs #25

Tyler Ulis

$30.25
1993-94 Topps Finest - [Base] - Refractor #118

David Robinson

$20.25

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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.