Home / NFA - Short Barrel Rifle / SIG SAUER MCX RATTLER 300BLK SBR BK 5″ # Sale! SIG SAUER MCX RATTLER 300BLK SBR BK 5″ #$2,97999 Original price was: $2,97999.$2,82469Current price is: $2,82469. In stock SIG SAUER MCX RATTLER 300BLK SBR BK 5" # quantity Add to cart SKU: RMCX-300B-5B-TAP-SBR Category: NFA - Short Barrel Rifle Product ID: 37251 Description Description M-LOK Aluminum HandguardPDW Upper w/PDW Pistol Grip3-Prong Flash Hider Related products Sale! POF USA RENEGADE+ DI SBR 556 10.5″ BLK $2,08300 Original price was: $2,08300.$2,00146Current price is: $2,00146. Sale! SIG SAUER MCX SPEAR 7.62X51 16″ COY 20+1 $4,57999 Original price was: $4,57999.$4,34914Current price is: $4,34914. Sale! Q MINI FIX 5.56 12″ SBR $2,99900 Original price was: $2,99900.$2,85335Current price is: $2,85335. Sale! POF USA RENEGADE+ SBR 300BLK 10.5″ BLK $2,01600 Original price was: $2,01600.$2,00146Current price is: $2,00146.