there are a bunch in all 3 sizes on gunbroker right now. i would assume you could also order through their website. i am personally saving up for one of their pricier double stack models right now. i currently own the spartan v 9mm and am very pleased. it easily holds with my high dollar colts and custom guns.
i had heard that they used armscor slide and frame, but i had also heard that they were held to a higher standard than other armscor made guns. that has definitely been evidenced by the examples i have personally held.
Favorite range gun for the money - CZ 75B or STI Spartan V 9mm
Go-to carry setup - Walther PPS or PPQ in FIST kydex holster 1AK
Favorite semi-auto design - HK P7
"A Sig is like a lightsaber - not as clumsy or random as a Glock."