Home / NFA - Short Barrel Rifle / SIG SAUER MCX RATTLER 300BLK SBR BK 5″ # View cart “Diamondback Firearms DB10 SBR 308WIN BLK 13.5″” has been added to your cart. 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! SIG SAUER MCX SPEAR SBR 7.62X51 13″ COY $4,57999 Original price was: $4,57999.$4,34914Current price is: $4,34914. Sale! Auto-Ordnance – Thompson 1927A-1 SBR 45CAL 10.5″ GRIP $3,23100 Original price was: $3,23100.$2,62459Current price is: $2,62459. Sale! POF USA RENEGADE+ SBR 300BLK 10.5″ BLK $2,01600 Original price was: $2,01600.$2,00146Current price is: $2,00146. Sale! POF USA P415 EDGE SBR 300BLK 10.5″ BLK $2,15000 Original price was: $2,15000.$2,13412Current price is: $2,13412.