I lost my two Colt taper pins for the front F marked front sight/gasblock. Can I use BCM taper pins for my Colt M4 Barrel? It’s cheaper to buy a pair from Bravo Company USA BCM taper pins pair for 1- Colt taper pin plus I need other parts from BCM and save on shipping.
Yes you can.
X2 yes. I just did this exact swap the other week for the same issue.