Tristar doesn't sell 10mm Tanfoglio does. Yeah it was expensive. The 10 mm conversion kit with 4 10mm mags, including the one with the kit, was $532.86. I spent $560 roughly with tax and background check on the gun, so yeah wasn't cheap. The base conversion kit for a black polycoat is around $413 for the compact versions. I wouldn't do it again, I plan on selling the 9mm upper with barrel, recoil spring, guide rod, and magazines to help pay for it soon. So I did shoot it tonight and...
The slide didn't crack! lol j/k No seriously it didn't. I had some weird failure to feeds with one mag but the other mag ran flawless. Those adjustable sights are not sighted in and I had neglected to bring a flat head with me to the range. It was half a foot low and an inch to the left at 7 yards. The recoil though of the S&B 10mm fmjs was actually not bad at all. Yes I spent over $1000 total, but I really wanted an all steel compact 10mm handgun with a black coated upper and nickle plated lower so I got what I want. Now I just need to sight it in and buy more ammo. I did polish the feed ram with polishing compound and a dremel after firing it.