I'm going to recommend not doing business with Corbin: I have a Corbin Gunfighter seat for my Stryker. It's a huge improvement over the stock seat but when I ordered it, the person handling it went on vacation for a month and a half and it didn't get submitted to the "shop" until he got back. So it took over 2 months to get my seat then I found out it was the wrong color (stone grey instead of black) even though the invoice showed the correct color and I spoke to someone on the phone to confirm color/material when I ordered. It also had the wrong mounting hardware so I had to modify that also before it would "lock".
I contacted Corbin about it and they said, "so send it back and we will redo it". I just asked for my money back when I returned it but they refused. I asked them to give me a credit so I could get one of their backrests, also refused. I told them I didn't have a lot of confidence that they would "do it right" this time and that they would get another seat to me in less than two more months and they said "that's your decision"
So I ended up spending $650 on a seat that I waited 2.5 months to get, had to re-dye myself, had to machine new mounting brackets and Corbin was unwilling to credit me in any way for their mistakes.