• The Safe & Easy Way to Buy & Sell Collectibles

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

Sale - 44% OFF SRP
Preview
Ends: 0d 7h 2m
bonds0128
Sale - 54% OFF SRP
Preview
Ends: 1d 9h 2m
wmsports
Sale - 65% OFF SRP
Preview
Ends: 2d 18h 3m
Jaysabz
Port: 2009-2017
Preview
Ends: 1d 8h 0m
texexz06
Sale - 46% OFF SRP
Preview
Ends: 2d 7h 2m
dawingseh

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.

Buy Cards

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!

Sell Cards

The Safe and Easy Way to Buy and Sell Cards Online

Or Shop Now

Shop Recently Added

2016 Bowman Draft - Chrome Draft Pick Autographs #CDA-MT

Matt Thaiss

$17.50
2015 Bowman Chrome - Prospects Autographs #BCAP-CR

Cody Reed

$12.99
2014 Bowman - Prospect Autographs Chrome #BCAP-JW

Jesse Winker

$20.25
2015 Bowman Draft - Chrome #150

Aaron Judge

$9.75
2017 Bowman - Chrome ROY Favorites #ROYF-9

Aaron Judge

$35.25
2014 Panini Prestige - Rookie Jumbo Jerseys - Patches Prime #TB

Teddy Bridgewater

$5.85
2012 Topps Magic - [Base] - Autograph [Autographed] #128

Josh Gordon

$12.00
2014 Panini Select - MVP Selections #5

Tom Brady

$20.40
2013 Topps Archives - 1962 Topps Design Relics #62R-DM

Doug Martin

$20.25
1995 Topps - Finest Boosters - Refractor #180

Emmitt Smith

$25.25
2016-17 Upper Deck MVP - [Base] - Colors & Contours #218

Level 2 Purple - Jonathan Toews

$11.75
2016-17 SPx - Rookies #R-AM

Auston Matthews /399

$50.25
1999-00 Pacific Aurora - Glove Unlimited #11

Martin Brodeur

$9.75
2016-17 Upper Deck - [Base] #468

Young Guns - Mitch Marner

$80.20
2013-14 Upper Deck Black Diamond - Stanley Cup Champions Championship Rings 2012-13 Chicago Blackhawks #CRB-8

Daniel Carcillo

$10.25
2010-11 UD North Carolina Basketball - [Base] - Autographs [Autographed] #29

John Kuester

$7.25
2010-11 SP Authentic - [Base] #239

Aubrey Coleman /149

$15.25
2012-13 Panini Past & Present - Shattered #30

Lebron James

$8.25
2016-17 Panini Select - [Base] - Silver Prizm #141

Premier Level - Ben Simmons

$99.25
2014-15 Panini Prizm - [Base] - Red Prizms #112

Steven Adams /49

$9.99

Jump to Popular Players!

More Players
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.