Perazzi O/U Double Release Trigger. This trigger group is also a outside selectable trigger. I can't tell you who did the conversion to release but the customer tells me they are a very solid. We accept many forms of payment, Visa, Mastercard, Amex, Discover, Money Orders, Cashier checks, Personal Checks. All credit card payments need to add 4 %. When using a personal check, the gun isn't shipped until 2 weeks after the check clears the bank. As always the guns I sell have a 3 day inspection. But return shipping charges are the responsiblity of the buyer. So please look at the pictures I have posted carefully and if you have any questions at all please email me. Thanks for looking!!!