Home / Semi-Auto Pistol / Rock Island Armory STK100 9MM BLK 17+1 4.5″ Sale! Rock Island Armory STK100 9MM BLK 17+1 4.5″$49900 Original price was: $49900.$47383Current price is: $47383. Out of stock SKU: 56625 Category: Semi-Auto Pistol Product ID: 47749 Description Description Optic-Ready SlideModular Aluminum FrameLightening Cuts/Serrations Related products Sale! Rock Island Armory TAC ULTRA FS 9MM/22TCM9R 5″ $89900 Original price was: $89900.$75496Current price is: $75496. Sale! Rock Island Armory ROCK ULT CSL 9MM/22TCM9R 3.62″ $82900 Original price was: $82900.$71003Current price is: $71003. Sale! Browning BUCKMARK + VISION AMER 5.9″ $82999 Original price was: $82999.$75766Current price is: $75766. Sale! Shadow Systems DR920 ELITE 9MM FD/BK OR 17+1 $1,16400 Original price was: $1,16400.$96518Current price is: $96518.