• The Safe & Easy Way to Buy & Sell Collectibles

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

Sale - 74% OFF SRP
Preview
Ends: 0d 23h 36m
dave1981
Sale - 38% OFF SRP
Preview
Ends: 7d 10h 36m
Johawa
Port: 1967-2017
Preview
Ends: 2d 7h 37m
$550.00 Robert924
Port: 1974-2016
Preview
Ends: 5d 2h 31m
$1,200.00 4kids
Port: 1970-2005
Preview
Ends: 1d 1h 57m
$1,100.00 babybombers

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!

14 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 Topps - Scouting Report Relics #SRR-JDE

Jacob deGrom

$8.00
2012 Bowman Draft Picks & Prospects - Chrome Prospects Certified Autographs - [Autographed] #BCA-JP

James Paxton

$30.25
2017 Topps - Topps Salute #S-73

Aaron Judge

$8.99
1962 Topps - [Base] #150.1

Al Kaline

$40.25
2011 Bowman - Chrome Prospects #BCP111

Bryce Harper

$15.94
2006 Upper Deck Arena Football - AFL Fabrics #FA-AG

Aaron Garcia

$4.25
2014 Panini Contenders - Rookie Ink #25

Aaron Donald

$10.25
2014 Panini Select - MVP Selections #5

Tom Brady

$20.40
2016 Panini Black Friday Football - [Base] #61

Rookies - Ezekiel Elliott /499

$36.75
1971 Kellogg's 3-D - [Base] #32

Bruce Taylor [Good to VG‑EX]

$15.25
1997-98 Pinnacle Be A Player - [Base] - Autographs [Autographed] #124

Ruslan Salei

$4.99
1995-96 Fleer Ultra Extra - Extra Attacker #13

Mario Lemieux

$15.25
1994-95 Donruss - Elite Series #5

Wayne Gretzky /10000

$24.25
2015-16 Upper Deck Fusion - Rookie Achievements #R1

Connor McDavid

$13.50
2014-15 Upper Deck - [Base] #465

Joni Ortio

$19.99
2001-02 Upper Deck Ovation - MJ 1982 Championship Commemorative #MJF1

Michael Jordan

$27.99
2009-10 SP Game Used - 3 Star Swatches #3S-DMO

Tim Duncan, Shaquille O'Neal, Yao Ming /299

$15.25
2015-16 Panini Immaculate Collection - Autographs - Bronze #11

Avery Bradley /75

$10.25
1997-98 Skybox Premium - Thunder and Lightning #1TL

Stephon Marbury

$17.50
2015-16 Panini Noir - Auto Noir Black and White #NB-JSK

John Starks /49

$9.20

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.