ar 15 pistols,Sig Sauer,PMCX-300B-5B-TAP-PSB,300 Blackout View cart “Sig MCX Rattler AR Pistol 300 AAC Blackout 5.5″ Barrel 30rd Mag” has been added to your cart. Showing the single result Default sorting Sort by popularity Sort by average rating Sort by latest Sort by price: low to high Sort by price: high to low Sale! IN STOCKSig MCX Rattler AR Pistol 300 AAC Blackout 5.5″ Barrel 30rd Mag $2,312.29 Original price was: $2,312.29.$2,081.06Current price is: $2,081.06. Add to cart