• The Safe & Easy Way to Buy & Sell Collectibles

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

Sale - 39% OFF SRP
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Ends: 6d 0h 12m
CardKing
Sale - 29% OFF SRP
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Ends: 0d 13h 13m
astros1962
Sale - 61% OFF SRP
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Ends: 2d 5h 13m
Reno_Sportscards
Sale - 57% OFF SRP
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Ends: 0d 0h 12m
mparish60
Sale - 57% OFF SRP
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Ends: 1d 20h 12m
greg7236

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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1970 Kellogg's 3-D Super Stars - [Base] #12

Willie Mays

$48.85
2011 Bowman Sterling - Rookie Certified Autographs #5

Julio Teheran

$7.49
2011 Topps Tier One - Crowd Pleaser Autographs - [Autographed] #CP- JC

Johnny Cueto /699

$12.25
1997 Fleer Ultra - Top 30 - Gold Die-Cut #20

Ryne Sandberg

$7.25
2016 Topps Allen & Ginter's - Relics A #FSRA-HS

Hannah Storm

$8.25
2014 Panini Spectra - [Base] #269

Rookie Autographs - Orleans Darkwa /149

$7.95
2014 Panini Contenders - Rookie Ticket Swatches #RTS-27.1

Odell Beckham Jr.

$15.00
2011 Panini Gold Standard - [Base] #260

Mark Ingram /319

$25.25
1978 Topps - [Base] #315

Tony Dorsett [Good to VG‑EX]

$9.25
2013 Upper Deck University of Notre Dame - Autographs #18

Tom Gatewood

$14.95
2010-11 Ultimate Collection - [Base] #88

Mats Zuccarello /399

$9.49
2014-15 Upper Deck - Hockey Heroes 2000's #HH78

Nicklas Lidstrom, Martin Brodeur

$9.25
2007-08 Upper Deck MVP - [Base] #351

Jonathan Toews

$9.99
2016-17 Upper Deck SP Game Used - [Base] - Red Auto Material [Autographed] [Memorabilia] #189

Authentic Rookies - Anthony DeAngelo

$20.25
1979-80 Topps - [Base] #131

Checklist

$7.25
2013-14 Panini National Treasures - [Base] #102

Luigi Datome /99

$15.20
2014-15 Panini Donruss - The Rookies - Swirlorama #3

Joel Embiid

$14.60
2015-16 Panini Prizm - Autographs #P-RSM

Rik Smits

$11.25
1984-85 Star - [Base] #284

Bernard King

$25.25
1995-96 SP Championship Series - Championship Shots - Gold #S4

Anfernee Hardaway

$8.25

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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.