GunBroker is the largest online marketplace for firearms in the United States, and for a dealer moving individual guns it is hard to beat. It is also where many auction houses list, one lot at a time, because it is where the bidders are.
That is the problem this guide is about. A firearms auction house does not sell one gun at a time. It sells a cataloged collection, three hundred lots on a Saturday, with a live auctioneer, phone bidders, absentee bids, condition reports and a settlement to the consignor’s estate the following week. GunBroker’s format was not built for that, and the auction houses that lead the field, from Rock Island to Morphy, do not run their sales there. They run them on their own platforms.
This guide covers the alternatives an auction house can shortlist in 2026, what each is for, what the fees look like, and the part that keeps firearms auctioneers up at night: how FFL handling works when the sale is yours. We build one of the alternatives, so read the Circuit section with that in mind.
Why Auction Houses Look for a GunBroker Alternative
It is a listing site, not an auction. GunBroker runs timed listings that end one at a time. There is no clerk console, no live call, no phone bidder cards, no absentee execution against the room. A cataloged sale becomes three hundred separate listings with three hundred separate end times.
The fees are per lot, on hammer. GunBroker charges the seller a final value fee on each sale, with optional listing upgrades on top, and a buyer-side fee. Rates change and vary by category and price tier, so check the current rate card, but the structure is the same as every marketplace: the better the sale, the bigger the bill.
The bidders are theirs. A bidder who registers on GunBroker has a GunBroker account. Their watch list, their feedback score and their inbox are on GunBroker’s domain. Your auction house is a username.
The back office is yours to build. Invoicing, consignor settlement, FFL collection and shipping records all happen outside GunBroker. Most auction houses do this in a spreadsheet, and it is where the compliance mistakes happen.
Payment and messaging restrictions. Firearms marketplaces operate under their own payment rules and buyer communication limits. An auction house that wants to email its own bidders about its next sale is working against the platform, not with it.
Two Kinds of Alternative
Another marketplace that takes firearms. Solves the format problem, since the general auction marketplaces run cataloged live sales, and leaves the fee and ownership problems in place.
Your own platform. Solves ownership and fees structurally, gives you the live format, and asks you to bring the bidders. For an auction house with a specialty, a client list and a reputation in the firearms community, that describes most auction houses running cataloged sales, this is where the field’s leaders already are.
Most firearms auction houses end up with the sale on their own platform and a marketplace listing for reach. We cover that below.
Alternatives That Run the Sale on Your Own Website
Circuit Auction AI
Circuit runs the whole firearms auction house on your own website under your brand, installed as a WordPress auction plugin or on a custom site. It covers consignment intake, AI cataloging, live auctions with a clerk console and real-time online bidding, timed auctions with staggered closing, absentee bids, a built-in auction house CRM with email tracking, invoicing, consignor settlement and shipping.
The firearms and weapons configuration adds serial tracking, historical classification and condition assessment. FFL management lives on the client record: bidders and dealers upload their license once, it is tracked to expiry, firearm lots are flagged at cataloging, buyers without a license designate a receiving dealer at checkout, and the platform holds shipping and settlement for a firearm lot until a valid license is on the invoice. We describe the full process in managing bidder FFLs at auction.
Pricing is published: a standard plan at a flat monthly rate plus a small commission on online bids, or an enterprise plan with no commission.
AuctionMobility
A white label live and timed bidding platform with branded mobile apps, used by several large firearms and militaria auction houses. Strong bidder-facing experience. Cataloging, CRM, FFL records and settlement are handled in a separate back office.
BidWrangler
Branded online bidding popular with estate and general auction companies in North America, some of which run firearms sales. Lighter on specialist cataloging and compliance features.
AuctionWorx by RainWorx
A configurable auction platform for auction houses with technical staff who want to build something specific, including their own compliance workflow.
Alternatives That Are Also Marketplaces
Proxibid
Historically the marketplace of choice for cataloged firearms sales, with a large firearms bidder base and a live console. Owned by Auction Technology Group, which also owns LiveAuctioneers and HiBid’s main competitors. Commission on hammer plus buyer-side fees. The most direct GunBroker alternative for an auction house that wants to stay on a marketplace.
HiBid
Large audience for estate, equipment and general auctions, with firearms permitted under its rules. Lower fees than the fine art marketplaces, and the natural marketplace for an auction house running AuctionFlex. See our guide to AuctionFlex alternatives if that is your back office.
LiveAuctioneers and Invaluable
Both accept firearms within their policies and reach collectors who buy antique arms alongside militaria and Americana. Fine for the antique and collectible end of a sale. Less relevant for modern firearms, where the bidders are elsewhere. Our LiveAuctioneers alternatives guide covers the fee structure.
GunBroker itself, for reach
Keep a GunBroker presence for the single-item dealer stock and for lots that need its audience, and run the cataloged sale on your own platform. That is the hybrid most firearms auction houses settle into.
What It Actually Costs: A Worked Example
Marketplace fees change, so treat the percentages below as an assumption to replace with the current rate cards. The structure is what matters.
Assume a firearms auction house with annual hammer of $3,000,000, of which 70% comes from online bids, and a marketplace seller fee averaging 5% on online hammer.
| Marketplace listings | Own platform (subscription) | |
|---|---|---|
| Online hammer | $2,100,000 | $2,100,000 |
| Seller fee at 5% | $105,000 | $0 |
| Listing upgrades and catalog fees | $10,000 to $25,000 | $0 |
| Platform subscription and online-bid commission | $0 | $12,000 to $60,000 |
| Buyer-side marketplace fee | Charged to your buyers | None |
| FFL and settlement back office | Spreadsheet and staff time | Included |
| Annual cost to the auction house | $115,000 to $130,000 | $12,000 to $60,000 |
The saving grows with the sale. Below roughly a quarter of a million in online hammer, the choice is about ownership, format and compliance, not cost. Above it, it is about all four.
FFL Handling: Where Marketplaces Stop and the Auction House Begins
Every firearms marketplace tells you, correctly, that the auction house is responsible for the transfer. GunBroker collects a receiving FFL from the buyer and passes it along. Everything after that, verifying the license, holding the shipment until it is valid, recording which license each serial went to, chasing the buyer whose dealer never sent the copy, is yours.
On your own platform, that work can live where the invoice is. In Circuit:
- The cataloguer records the serial number and marks the lot modern, antique or Curio and Relic eligible.
- Licensed bidders and dealers upload their FFL once. Staff verify it and mark the record. It is tracked to expiry.
- The clerk console shows FFL status beside the bidder’s limit when a bid needs a decision.
- At checkout, the buyer confirms their own license or designates a receiving dealer. The dealer’s license attaches to the invoice.
- Shipping labels and consignor settlement for the firearm lot release when the status reads valid. Non-firearm lots on the same invoice ship as normal.
- The transfer record, serial, buyer, license, ship date and tracking, stays on the lot.
Your compliance procedures do not change. Your staff still verify the license and follow federal, state and local law. What changes is that the record keeping is consistent, and the Monday shipping deadline no longer depends on a spreadsheet being up to date.
How to Move Without Losing Your Bidders
- Set up the platform before you announce anything. Registration, FFL upload and a test sale should work before a bidder sees it. Our platform checklist is a good starting point.
- Run one sale in both places. List the catalog on your usual marketplace as before, and run the same sale on your own site with an incentive to register directly, such as a lower buyer’s premium.
- Email your buyers from the auction house, not the platform. You have the invoices from every past sale. Every buyer hears that future sales run on your site and what that means for them, including that their FFL is on file once and reused.
- Move the mailing list. Catalog announcements, category alerts and condition report replies go out from your own CRM, with email tracking on, from now on.
- Measure the share. After three sales, look at what share of online hammer came through the marketplace. Keep listing there if the number justifies it.
Regular bidders follow the auction house. The ones who do not are the ones who found you by browsing the marketplace, which tells you what the marketplace was worth.
Making the Decision
If you sell single items from dealer stock, GunBroker is the right tool and you should keep using it. If you run cataloged sales with a live auctioneer and consignors waiting for settlement, the sale belongs on a platform built for that format, and the FFL record belongs on the client record, not in a folder. Run the sale on your own platform, keep a marketplace listing for reach where the numbers justify it, and start building the bidder list that a marketplace username never gave you.
Frequently Asked Questions
What is the best alternative to GunBroker for an auction house?
For a cataloged firearms sale, an own-website platform with a live console and FFL management, such as Circuit, or a white label bidding platform such as AuctionMobility with a separate back office. For an auction house that wants to stay on a marketplace, Proxibid is the most direct alternative with a live format and a firearms audience.
How much does GunBroker charge sellers?
A final value fee on each sale, tiered by price, plus optional listing upgrade fees and a buyer-side fee. Rates change, so check the current fee schedule before comparing. The structure is a percentage of hammer, which is what an own-platform subscription replaces.
Can an auction house run a live firearms auction on GunBroker?
Not in the sense of a cataloged live sale with a clerk, phone bidders and absentee execution. GunBroker runs timed listings that end individually. Live firearms sales run on auction platforms or on marketplaces with a live console such as Proxibid.
How does FFL handling work on my own auction platform?
The license is stored on the bidder’s or dealer’s client record, tracked to expiry, and attached to the invoice at checkout. Firearm lots are flagged at cataloging and held from shipping and settlement until a valid license is on the invoice. Your staff still verify the license and follow the law; the platform keeps the record.
Can I use GunBroker and my own auction platform at the same time?
Yes, and most firearms auction houses do. Dealer stock and single items go on GunBroker; cataloged sales run on the auction house’s own platform, with a marketplace listing for reach where it earns its fee.
About Circuit Auction
Circuit Auction is an all-in-one auction management platform for professional auction houses, including firearms and militaria specialists. It runs on your own website under your own brand, with AI cataloging, live and timed bidding, a built-in CRM with email tracking, FFL management, automated invoicing and consignor settlement in one system.
Running firearms sales? Book a demo and we will walk through a sale from cataloging to the shipping hold.
