• The Safe & Easy Way to Buy & Sell Collectibles

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

Sale - 69% OFF SRP
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Ends: 0d 16h 10m
DAVE56
Sale - 7% OFF SRP
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Ends: 1d 15h 10m
Bryanjs14
Sale - 67% OFF SRP
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Ends: 0d 6h 10m
atrain2004
Port: 1986-2017
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Ends: 3d 21h 4m
$6,000.00 romitasportcards
Sale - 62% OFF SRP
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Ends: 2d 19h 10m
nordy22

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!

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!

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The Safe and Easy Way to Buy and Sell Cards Online

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2011 Bowman Sterling - MLB Future Stars Autographs #BSP-DV

Dan Vogelbach

$14.25
2017 Topps Heritage - [Base] #444.1

High Number SP - Gary Sanchez (Base)

$9.99
1989 Upper Deck - [Base] #1

Ken Griffey Jr.

$29.97
2014 Panini Prizm - [Base] - Red, White, & Blue Pulsar Prizms #159

Cal Ripken Jr.

$9.99
2016 Topps Chrome - [Base] - Refractor #3.2

Francisco Lindor (Diving Slide)

$9.00
2012 Topps Chrome - [Base] #40.1

Russell Wilson (Throwing Hand Visible)

$9.70
1976 Topps - [Base] #395

Roger Staubach

$10.99
1984 Topps USFL - [Base] #109

Mike Rozier

$13.50
1998 Upper Deck Encore - [Base] #12

Randy Moss

$7.60
1993 Upper Deck SP - All-Pros #AP7

Emmitt Smith

$9.35
2006-07 Upper Deck Trilogy - Honorary Swatches #HS-DS

Darryl Sittler

$5.70
2016-17 Upper Deck SP Game Used - [Base] - Blue Auto [Autographed] #180

Authentic Rookies - Connor Brown

$20.25
2013-14 Panini Prime - Prime Duals #D-KD

Pavel Datsyuk, Phil Kessel /150

$12.25
2015-16 Upper Deck - Day with the Cup #DC10

Brad Richards

$29.99
2015-16 Upper Deck - [Base] #228

Young Guns - Dylan Larkin

$25.25
1984-85 Star - [Base] #108

Caldwell Jones

$8.88
2015-16 Panini Absolute - NBA Stars Materials #9

Andrew Wiggins /99

$7.00
2009-10 Panini - [Base] #357

Stephen Curry

$22.25
1996-97 UD3 - Superstar Spotlight #S3

Anfernee Hardaway

$30.25
1986-87 Fleer - [Base] #77

Chris Mullin

$12.25

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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.