Home / Rifle / SIG SAUER MCX-R REGULATOR 5.56 FDE RX2 Sale! SIG SAUER MCX-R REGULATOR 5.56 FDE RX2$3,49999 Original price was: $3,49999.$1,86643Current price is: $1,86643. In stock SIG SAUER MCX-R REGULATOR 5.56 FDE RX2 quantity Add to cart SKU: RMCXR-556N-16B-RX2 Category: Rifle Product ID: 107398 Description Description Receiver Integrated ARCA RailSIG 2-Port Muzzle BrakeMCX Upper Receiver Related products Sale! Christensen Arms MESA TI 300WIN METALLIC LH # $2,19999 Original price was: $2,19999.$1,95999Current price is: $1,95999. Sale! Savage Arms AXIS II XP 270WIN FDE 22″ PKG# $54900 Original price was: $54900.$45757Current price is: $45757. Christensen Arms MESA LR 6.5CR TUNG/BLK 26″ $1,64999 Sale! Barrett Firearms MRAD 300WIN BLK 26″ 10+1 MLOK $6,65000 Original price was: $6,65000.$5,86530Current price is: $5,86530.