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How EPIC Merchant Systems Helps Firearms Businesses Sell on GunBroker with Immediate Checkout

Steve Kelly • February 20, 2025

"How to Integrate Authorize.net with GunBroker for Seamless Payments"

In the world of online firearm sales, efficiency and reliability are crucial. GunBroker, the leading online marketplace for firearms, allows businesses to reach a vast audience, but ensuring a seamless checkout experience can be challenging. That’s where EPIC Merchant Systems comes in.


Seamless Transactions with EPIC PLUS and GunBroker


At EPIC Merchant Systems, we understand the unique needs of firearms businesses. Our EPIC PLUS program is designed to provide a secure, streamlined, and fully integrated payment solution that allows you to accept credit card payments directly through GunBroker with immediate checkout.

Using Authorize.net, a trusted and compliant payment gateway, we help firearms businesses set up a reliable and secure processing solution that integrates smoothly with GunBroker’s platform. This means your customers can complete their purchases instantly, reducing abandoned transactions and improving sales.


How to Set Up EPIC PLUS with GunBroker


We make the setup process simple, so you can start selling without hassle. Here’s how it works:


Step 1: Get Started with EPIC PLUS

  • Contact us to enroll in our EPIC PLUS merchant processing program.
  • Our team will assist in setting up your merchant account tailored to firearm transactions.
  • We can get you up and running within 24 hours, but please allow up to 72 hours


Step 2: Obtain Your Authorize.Net API Login ID and Transaction Key

  • Log in to Authorize.Net:
  • Go to Authorize.Net Login and sign in with your credentials.
  • Navigate to API Credentials:
  • In the left-hand menu, click “Account.”
  • Under the “Security Settings” section, select “API Credentials & Keys.”
  • Retrieve Your API Login ID:
  • Your API Login ID will be displayed—copy and save it securely.
  • Generate a Transaction Key:
  • Under the “Create New Key(s)” section, select “New Transaction Key.”
  • Click “Submit.”
  • Complete any required identity verification via email or security questions.
  • Once displayed, copy and store your new Transaction Key safely (it won’t be shown again).

Important: Generating a new key will deactivate any previous keys, so be sure to update all integrations accordingly.


Step 3: Link Your Authorize.Net Account to GunBroker

  • Log into GunBroker:
  • Navigate to “Toolbox.”
  • Select “Checkout Setup” and then “Edit Payment Gateway.”
  • Set Up Authorize.Net:
  • Change the payment type to “Authorize.Net.”
  • Ensure it is set to “Authorization and Capture.”
  • Enter your Authorize.Net API login ID and Transaction Key.
  • Confirm both entries on the right-hand side.
  • Set Cash Discount Percentage:
  • Enter your cash discount percentage, typically 3% to 3.5%. You can enter zero if preferred.
  • Save and Test:
  • Save all changes.
  • Test the Gateway by running a test transaction.


Why Choose EPIC Merchant Systems for GunBroker Sales?


  • Veteran-Owned, Pro-Freedom Business – We stand for God, Family, and Country and support firearm businesses in maintaining their Second Amendment rights.
  • Industry-Specific Processing Solutions – We understand the regulations and requirements for selling firearms online.
  • Personalized Support – Work with real people, not a call center. Our team ensures you get the best service and support for your business.
  • Secure and Compliant – We provide a trusted and legally compliant payment solution for firearms transactions.


Ready to Upgrade Your GunBroker Sales?


Don’t let outdated or slow payment processing hold your business back. With EPIC PLUS and Authorize.net, you can offer immediate checkout on GunBroker, ensuring a smooth and secure experience for your customers.


Contact us today to get started with EPIC PLUS and take your GunBroker sales to the next level!

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