I've been pointed towards https://www.guntab.com/
To buy sell gun and gun parts, reloading & shooting.

Has anyone here used this?

Reading through, it appears very promising.

They also "escrow" both sides of the transaction, and that can be a good method to prevent scammers on either side from even attempting a transaction.

Can be used for just about any purchase as long as sellers will accept.

Credit card instead of tying directly to a bank account.

Downside is the $2500 limit.

Hope they gain a good foothold.