• The Safe & Easy Way to Buy & Sell Collectibles

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

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!

12 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

Shop Recently Added

2013 Bowman Inception Prospect Autographs #PA-TW

Taijuan Walker

2016 Bowman Chrome Prospect Autographs #CPA-JO

Jhailyn Ortiz

2014 Topps Heritage High Number #H558

Mookie Betts

1988 Cal League California League #34

Ken Griffey Jr.

2011 Topps Chrome Retail Orange Refractor #25

Colin Kaepernick

2013 Panini Spectra Rookie Signatures #196

Tyrann Mathieu /299

1998 Collector's Edge 1st Place #135

Peyton Manning

1991 Pro Line Portraits Autographs #ERGI

Ernest Givins

2009 Bowman Draft Picks College Letter Patch #LAP-KS

Kory Sheets /175

1998-99 Topps Mystery Finest Bronze #M4

Wayne Gretzky

2015-16 Upper Deck UD Canvas #C252

Theoren Fleury

2015-16 Upper Deck Silver Foil Board #475

Young Guns - Ryan Hartman

2014-15 Fleer Showcase Hot Prospects #112

Matt Carey, Scott Darling /299

2014-15 Upper Deck UD Canvas #C104

Leon Draisaitl

2009-10 Panini Season Update Threads Update Rookie Class Letter Patch Signatures #139

Marcus Thornton /696

2014-15 Panini Court Kings Expressionists #22

LeBron James

2015-16 Panini Prizm Rookie Signatures #RS-JOR

Josh Richardson

2009-10 Panini #307

Stephen Curry

2015-16 Panini National Treasures Signatures #S-DMD

Doug McDermott /75

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.