5839 SIG RM400 in 300 Blackout, NIB!
Absolutely Brand New in Sig Sauer RM400 in 300 Blackout, RM400-300B-16B-ECP-ODG, Semi-Automatic, .300Blackout, 16 Inch Chrome Lined Barrel, One 30 Round Magazine, Lever Safety, Locking Flip-up Front and Rear Sights, 6.7 lbs. and Vortex Style Flash Hider. All Furniture in Olive Drab Green. Superior to Colt because of the built in Quick Detach Swivel Points, Ambidextrous Magazine release button and the Spring Loaded Tension Point all built into the Lower Receiver!!