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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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18 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.

We Do The Work To Sell Your Cards

Research & identify your collectibles

Evaluate condition & value

Scan the front & back of every card

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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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Shop Recently Added

2018 Topps Heritage High Number - Clubhouse Collection Relics #CCR-BH

Bryce Harper

$7.14

2018 Topps Archives - 1981 Topps Design Future Stars #FS-YAN

Clint Frazier, Gleyber Torres, Miguel Andujar

$5.37

2018 Topps Gypsy Queen - Autographs #GWA-TP

Tommy Pham

$9.17

2016 Bowman Chrome - Prospects Autographs - Blue Refractor #BCAP-DFO

Dustin Fowler /150

$57.74

2016 Panini Immaculate Collection - [Base] #28

Ichiro /99

$8.29

2013 Bowman Sterling - Jumbo Rookie Relic #BSJRR-LB

Rookies - Todd Gurley (Base) [PSA 10 GEM MT]

$29.87

2012 Panini Black - [Base] - Rookie Signatures [Autographed] #138

Fletcher Cox /199

$14.34

2016 Panini Black Gold Collegiate - [Base] #33

Derek Carr /99

$9.74

2017 Panini Contenders Draft Picks - [Base] #293

College Ticket - Marshon Lattimore

$34.70

2017-18 SPx - UD Black Star Trademarks #ST-MB

Martin Brodeur /199

$9.74

2010-11 Upper Deck - Hockey Heroes #HH-YZ

Steve Yzerman

$28.14

2017-18 Upper Deck Game Dated Moments - 2018-19 Game Dated Moments Preview - Offseason #PR-O1

(July 1, 2018) – Ontario Native, John Tavares, Returns Home in Blockbuster Sign…

$10.89

2016-17 Upper Deck Compendium - SP Achievement - Blue #SP-7

Bob McAdoo, Kareem Abdul-Jabbar, Pete Maravich

$5.13

2015-16 Panini Absolute - Team Tandems #TT-OKC

Kevin Durant, Russell Westbrook /99

$14.91

1996-97 Topps - Finest Reprints - Refractor #20

John Havlicek

$10.66

2012-13 Fleer Retro - 1999-00 Fleer Ultra Fresh Ink #UFI-HG

Hal Greer

$32.74

2016-17 Panini Select - [Base] - Blue Prizm #174

Premier Level Die-Cut - Jaylen Brown /199

$20.09

Jump to Popular Players!

Auston Matthews	Patrik Laine	Aaron Judge	Tom Brady	Brock Boeser	Nolan Ryan
Connor McDavid	Bryce Harper	Mike Trout	Kris Bryant	Wayne Gretzky	William Nylander
Michael Jordan HOF	Ken Griffey Jr.	Kobe Bryant	Cal Ripken Jr.	Jack Eichel	Ben Simmons
Derek Jeter	Mitch Marner	LeBron James	Mickey Mantle	Peyton Manning	Shaquille O'Neal

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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. 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.