• The Safe & Easy Way to Buy & Sell Collectibles

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

Sale - 58% OFF SRP
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Ends: 0d 16h 21m
SMVintage
Port: 1970-2017
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Ends: 2d 10h 20m
$3,000.00 9ford5
Port: 1989-2017
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Ends: 2d 6h 15m
$888.25 jmoris
Port: 2001-2016
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Ends: 1d 3h 55m
luchcards16
Port: 1974-2016
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Ends: 1d 22h 17m
$1,100.00 4kids

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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1965 Topps - [Base] #134

Mickey Mantle [Good to VG‑EX]

$23.24
2017 Topps - [Base] #287.1

Base - Aaron Judge (Fielding)

$19.99
2014 Bowman Sterling - Prospect Autographs - Orange Refractor #BSPA-CT

Cole Tucker /75

$13.00
1963 Topps - [Base] #490

Willie McCovey [Good to VG‑EX]

$29.99
2016 Topps Gypsy Queen - [Base] - Mini #72.2

Gary Sanchez

$18.21
1986 Topps - [Base] #374

Steve Young [PSA 8]

$66.00
1955 Bowman - [Base] #133

Vic Janowicz [Good to VG‑EX]

$9.95
1973 Topps - [Base] #115

Jack Ham

$13.25
2009 Press Pass Signature Edition - Gridiron Graphs - Gold #GG-BH

Brian Hoyer

$8.75
1970 Kellogg's 3-D Super Stars - [Base] #49

Calvin Hill

$10.25
2016-17 Upper Deck - UD Canvas #C96

Young Guns - Sebastian Aho

$20.25
2016-17 SPx - Rookies - Blue Autograph [Autographed] #R-IP

Ivan Provorov /165

$15.24
2014-15 Upper Deck - [Base] #225

Aaron Ekblad

$19.95
2015-16 Upper Deck Ultimate Collection - Ultimate Rookie Auto Booklet Relics #RBR-JV

Tier 1 - Jake Virtanen /99

$12.25
2016-17 Upper Deck - UD Canvas #C92

Young Guns - Anthony Mantha

$9.75
2012-13 Panini Crusade - Majestic - Signatures [Autographed] #65

Darryl Dawkins

$16.25
2012-13 Panini Past & Present - [Base] - Signatures [Autographed] #194

Reggie Jackson

$4.25
2004-05 Upper Deck Exquisite Collection - [Base] #83

Erik Daniels /225

$15.25
2014-15 Panini Prizm - [Base] - Blue Mojo Prizms #251

Andrew Wiggins [BGS 9.5]

$124.75
2014-15 Panini Excalibur - Dunk Company Jerseys #5

Kobe Bryant

$10.25

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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.