13.9" barrels

5.56 13.9 M-4 Barrel 1/7 4150 CL

13.9" pre-ban M-4 profile with a 1x7 twist, 4150 11595E Steel with Chrome Lining. Always have a competent gunsmith assemble your barrel or rifle kit and headspace your barrel before first use. Using a rifle put together incorrectly or assembled...

5.56 13.9 M-4A1 SOCOM Barrel 1/7 4150 CL

13.9" pre-ban M-4A1 SOCOM profile with a 1x7 twist, 4150 11595E Steel with Chrome Lining. These are the same heavy profile as the current issue with the M203 flats. Always have a competent gunsmith assemble your barrel or rifle kit and headspace...

5.56 13.9" 1/7 4150 QPQ 5.56 Mid Length Barrel w/FSB

Gov profile style 13.9" 4150 (machine gun steel) QPQ finished 1/7 twist barrel. The gas system length is mid port size is .081. Gas block diameter is .750 journal length is 1.9". Barrel has M-4 feed ramps and chambered in 5.56.   

5.56 13.9" 1/7 4150 QPQ 5.56 Mid Length Pencil Barrel w/FSB

Gov profile style 13.9" 4150 (machine gun steel) QPQ finished 1/7 twist barrel. The gas system length is mid port size is .081. Gas block diameter is .625 journal length is 1.9". Barrel has M-4 feed ramps and chambered in 5.56.   

5.56 13.9" 1/7 4150 CL 5.56 Mid Length Barrel w/FSB

Gov profile style 13.9" 4150 (machine gun steel) Phosphate finished 1/7 twist barrel.   Bore and chamber are chrome lined The gas system length is mid port size is .081. Gas block diameter is .750 journal length is 1.9". Barrel has M-4 feed...

5.56 13.9 M-4A1 SOCOM Barrel With FSB 1/7 4150 CL

13.9" pre-ban M-4A1 SOCOM profile with a 1x7 twist, 4150 11595E Steel with Chrome Lining. The FSB is attached with taper pins after coating. These are the same heavy profile as the current issue with the M203 flats. Always have a competent...