16" 6.8 SPC Chrome Lined ARM-4 Barrel w/ 6.8 Bolt (5/8x24 tpi)

16" 6.8 SPC Chrome Lined ARM-4 Barrel w/ 6.8 Bolt (5/8x24 tpi)

16" 6.8 SPC2 Chrome Lined ARM-4 Stripped Barrel, 1x10

16" 6.8 SPC2 Nitrided ARM-4 Stripped Barrel, 1x10