• The Safe & Easy Way to Buy & Sell Collectibles

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

Port: 2013-2017
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Ends: 2d 12h 31m
$3,780.00 nobinho18
Sale - 12% OFF SRP
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Ends: 0d 16h 10m
boxbuster777
Sale - 59% OFF SRP
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Ends: 8d 3h 11m
arod4president
Port: 1987-1988 Baseball
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Ends: 6d 4h 1m
$42.00 rarquant
Sale - 62% OFF SRP
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Ends: 2d 1h 11m
JohnBfree

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!

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The Safe and Easy Way to Buy and Sell Cards Online

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2011 Bowman Chrome - USA 18U National Team Autograph Refractor #18U-17

Chris Okey /417

$7.75
2016 Bowman Draft - Chrome Draft Pick Autographs #CDA-MT

Matt Thaiss

$11.25
2017 Topps Gypsy Queen - Fortune Teller Minis #FT-AJ

Aaron Judge

$10.45
1957 Topps - [Base] #2

Yogi Berra [Good to VG‑EX]

$50.00
2016 Bowman's Best - Best of 2016 Autographs - Refractor #B16-ST

Sam Travis

$17.00
2011 Certified - Fabric of the Game #58

Dan Hampton /250

$6.25
1971 Kellogg's 3-D - [Base] #32

Bruce Taylor [Good to VG‑EX]

$4.00
2014 Topps Five Star - Autographs #FSA-RJ

Rashad Jennings

$6.73
1987 Topps - [Base] #112

Joe Montana [PSA 9]

$16.99
1968 Topps - [Base] #157

Ray Nitschke [Good to VG‑EX]

$9.75
2016-17 SPx - [Base] - Blue Autographs [Autographed] #64

Shadow Box Rookies - Dylan Strome /199

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

Young Guns - Sebastian Aho

$999.00
2016-17 SPx - Rookies #R-MM

Mitch Marner /399

$12.25
2016-17 SPx - [Base] - Blue Autographs [Autographed] #68

Shadow Box Rookies - Mikhail Sergachev /199

$30.25
2015-16 SP Authentic - Sign of the Times Rookies #SOTR-MI

Colin Miller /299

$3.20
2013-14 Panini Gold Standard - Ring Bearers Autographs #20

Ron Harper /299

$6.59
2009-10 Panini Prestige - [Base] #207

Stephen Curry

$19.00
2012-13 Panini Innovation - Fine Print Autographs #15

Jason Terry

$8.00
2015-16 Panini Court Kings - 2 on 2 Quad Memorabilia #13

Gordon Hayward, Brandon Knight, Eric Bledsoe, Trey Burke /99

$20.00
1993-94 Upper Deck Special Edition - Die-Cut All-Stars #W12

Mitch Richmond

$6.24

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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.