• The Safe & Easy Way to Buy & Sell Collectibles

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

Sale - 45% OFF SRP
Preview
Ends: 0d 8h 15m
sportscardstreasures
Sale - 24% OFF SRP
Preview
Ends: 0d 7h 15m
vintagegreats
Sale - 73% OFF SRP
Preview
Ends: 0d 12h 15m
MattsSportsCards3422
Sale - 57% OFF SRP
Preview
Ends: 1d 5h 15m
notapawnshop
Sale - 23% OFF SRP
Preview
Ends: 2d 23h 15m
jimmertime7

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

2015 Topps Heritage High Number - [Base] #563.1

Carlos Correa (Base)

$10.15
2017 Panini Donruss - [Base] #38

Rated Rookies - Aaron Judge

$22.99
2017 Panini Donruss - The Rookies #TR-8

Aaron Judge

$11.44
2013 Bowman Draft Picks & Prospects - Chrome Prospect Autographs #BCA-TD

Travis Demeritte

$9.25
2017 Topps Gypsy Queen - [Base] #168.1

Aaron Judge

$11.74
2011 Upper Deck - [Base] - Gold Autographs [Autographed] #80

Mike Pouncey

$25.25
1975 Topps - [Base] #328

Ernie Holmes [Good to VG‑EX]

$15.00
1989 Score - [Base] #257

Barry Sanders

$25.00
2016 Donruss Optic - [Base] #168

Rated Rookies - Ezekiel Elliott

$14.99
2012 Panini Prizm - [Base] #230

Russell Wilson

$8.50
2016-17 Upper Deck - UD Game Jersey #GJ-SC

Sidney Crosby

$8.25
2007-08 Upper Deck MVP - [Base] #351

Jonathan Toews

$9.99
2016-17 Upper Deck - [Base] #249

Young Guns - William Nylander [BGS 9.5]

$99.00
2014-15 Upper Deck Premier - [Base] #106

Acetate Rookie Auto-Patch - Seth Griffith /299

$29.25
2016-17 Upper Deck - UD Canvas #C261

Program of Excellence - Thomas Chabot

$999.00
2013-14 Panini Signatures - Film Rookie - Autographs [Autographed] #18

Tim Hardaway Jr. /249

$12.00
2005-06 Press Pass - Autographs - Bronze #DAGR

Danny Granger

$10.00
2012-13 Panini Past & Present - Elusive Ink #3

Luc Longley

$9.00
1986-87 Fleer - [Base] #12

Manute Bol

$8.25
2016-17 Panini Donruss Optic - [Base] #151

Ben Simmons

$20.00

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.