• The Safe & Easy Way to Buy & Sell Collectibles

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

Sale - 56% OFF SRP
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Ends: 1d 19h 35m
groupbreakchecklists
Sale - 64% OFF SRP
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Ends: 0d 19h 35m
12fancards
Port: 1995-2016
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Ends: 5d 10h 0m
$427.00 Sals_cardz
Sale - 12% OFF SRP
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Ends: 0d 17h 15m
boxbuster777
Port: 1973-2016
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Ends: 4d 13h 38m
$75.00 Doomm

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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1963 Topps - [Base] #480

Bill Monbouquette

$10.00
1962 Topps - [Base] #340

Don Drysdale

$7.25
2014 Bowman Chrome - [Base] - Bubbles Refractor #99

Brett Gardner /99

$7.99
2015 Topps Tribute - Diamond Cuts Relics #DC-CS

Chris Sale /199

$12.23
1996 Pinnacle - Starburst #97

Derek Jeter

$22.75
2014 Topps Fire - [Base] #119

Odell Beckham Jr.

$5.99
2014 Flair Showcase - [Base] - Legacy Collection #14

Khalil Mack /150

$4.24
2015 Panini Spectra - Immense Materials - Neon Blue #IM-OB

Odell Beckham Jr. /50

$16.68
2014 Panini National Treasures - Colossal Pro Bowl Materials - Prime #CPB-EL

Eddie Lacy /50

$17.75
2016 Panini Prizm Collegiate Draft Picks - [Base] - Prizms Autographs [Autographed] #207

Draft Picks - Joshua Perry

$8.25
2016-17 Upper Deck - O-Pee-Chee Update - Rainbow Foil #675

Marquee Rookies - Jake Guentzel

$17.99
2016-17 Upper Deck - Day with the Cup #DC20

Nick Bonino

$20.25
2013-14 Panini Dominion - [Base] #108

Jonathan Marchessault /299

$29.99
2014-15 Upper Deck Black Diamond - [Base] #229

Evgeny Kuznetsov

$12.25
2008-09 Fleer Ultra - [Base] #259

Drew Doughty

$10.25
2016-17 Panini Prizm - [Base] - Retail Starburst Prizm #14

Thon Maker

$30.25
1986-87 Fleer - [Base] #68

Karl Malone

$28.25
1998-99 Upper Deck Black Diamond - [Base] - Triple Diamond #2

Michael Jordan /1500

$20.45
1988-89 Fleer - [Base] #43

Dennis Rodman

$9.00
2013-14 Panini Titanium - Game Gear Duals Material #17

Dion Waiters, Kyrie Irving /155

$14.25

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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.