Home / NFA - Short Barrel Rifle / SIG SAUER MCX RATTLER 300BLK SBR BK 5″ # Sale! SIG SAUER MCX RATTLER 300BLK SBR BK 5″ #$2,97999 $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! Diamondback Firearms DB10 SBR 308WIN BLK 13.5″ $1,43000 $1,09628 Sale! POF USA P415 EDGE SBR 5.56 10.5″ BLK $2,15000 $2,13412 Sale! Q MINI FIX 300BLK 8″ SBR $2,99900 $2,85335 Sale! POF USA P415 EDGE SBR 300BLK 10.5″ BLK $2,15000 $2,13412