Need some advice and knowledge da556 front sight and smithing

[Craig0ry]

any hardware store will have roll pins, I used them to install a FSB that wasn’t original to a barrel and they work great, maybe not as nice looking as the taper pins but this gun is for functionality.

Where would i look for roll pins? Its an option totally i just want to make sure its secure

 

[S-357]

Great thanks, the more ideas the better