The BCM Extractor Spring is a heavy coil design made for the increased extractor tension required on many AR15, M4, M16 short barreled rifles. This product also improves the reliability on a standard 16'' and 14.5'' carbines.
Bcm Extractor Spring Upgrade Kit
Bravo Company USA
Gun Stuff/Rifle Parts/Bolt Carrier Groups / Parts
$4.95
BCM-EXSPRING-1
812526020628