Home / Semi-Auto Pistol / SIG SAUER MCX RATTLER 5.56 BLK 5.5″# You cannot add "Rock Island Armory TAC ULTRA MS 9MM/22TCM9R 4.2"" to the cart because the product is out of stock. Sale! SIG SAUER MCX RATTLER 5.56 BLK 5.5″#$2,74999 $2,61622 Out of stock SKU: PMCX-5B-TAP-NB Category: Semi-Auto Pistol Product ID: 47584 Description Description M-Lok Handguard3 Prong Flash Hider Related products Sale! Heckler and Koch (HK USA) VP40 40S&W BLK 4.1″ 10+1 FS $86900 $76971 Sale! POF USA PSG .22LR PISTOL 8″ BLK MLOK $67200 $49373 Sale! Springfield Armory HELLCAT OSP 9MM BLK 3″ 10+1 NS $63300 $60220 Sale! Rock Island Armory M1911-A2 22TCM STD FS 17+1 5″ $74900 $51447