The subcompact will fit in the 10ART giving you a holster for the compact and subcompact models. If you do not have a sub then the 6ART would be the best option. Love mine. Below is my video review.
32* A&ASR F&AM, LEO, EMT
Glock 33 .357 Sig, Glock 19 Gen 4, M&P 40c, Kahr PM9, SW99