• The Safe & Easy Way to Buy & Sell Collectibles

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

Sale - 59% OFF SRP
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Ends: 3d 12h 5m
iahawk2025
Sale - 41% OFF SRP
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Ends: 4d 21h 24m
actis1
Port: 2003-2016
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Ends: 1d 15h 49m
$3,450.00 Nicknick25
Sale - 42% OFF SRP
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Ends: 0d 13h 4m
kristianstrom
Sale - 45% OFF SRP
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Ends: 0d 13h 4m
dustin42

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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2013 Bowman Draft Picks & Prospects - Draft Picks #BDPP19

Aaron Judge

$26.23
2016 Bowman's Best - Top Prospects - Green Refractor #TP-28

Aaron Judge /99

$79.99
1956 Topps - [Base] #190

Carl Furillo [Good to VG‑EX]

$12.00
1992 Pinnacle - Rookie Idols #12

Nolan Ryan, Todd Van Poppel

$10.25
2017 Bowman - Chrome Prospect Autographs #CPA-LGU

Lourdes Gurriel Jr.

$40.25
2016 Panini Prestige - [Base] #206

Rookies - Dak Prescott

$8.65
1973 Topps - [Base] #15

Terry Bradshaw

$12.25
2000 Upper Deck Ultimate Victory - [Base] #94

Brian Urlacher /2000

$17.73
1975 Topps - [Base] #461

Terry Bradshaw

$12.25
2000 Score - Rookie Preview Autographs #SR 42

Doug Johnson

$12.25
2016-17 Upper Deck - [Base] #201

Young Guns - Auston Matthews [BGS 9.5]

$221.00
2016-17 Upper Deck - UD Game Jersey #GJ-CP

Carey Price

$30.00
2016-17 SPx - Rookies - Blue Autograph [Autographed] #R-SA

Sebastian Aho /165

$15.25
2014-15 O-Pee-Chee Platinum - Rookie Autographs #RA-10

Evgeny Kuznetsov

$15.25
2016-17 Upper Deck SP Game Used - [Base] - Purple #113

Authentic Rookies - Dylan Strome

$10.25
2014-15 Panini National Treasures - NBA Material #NBA-JS

John Stockton /99

$7.20
1992-93 Fleer - [Base] #32

Michael Jordan [PSA 9]

$11.00
1996-97 Upper Deck - Fast Break Connections #FB23

Michael Jordan

$9.74
2006-07 Ultimate Collection - Ultimate Signatures - [Autographed] #US-BR

Brandon Roy

$39.25
2016-17 Panini Donruss Optic - [Base] - Holo #153

Jaylen Brown

$9.25

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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.