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Let's say I want rifle length sight radius on my old M4 profile carbine gas barrel; should the 2nd FSB be a clamp-on/set screw type, or pinned old school way? Torn between those two options for doing a Bushmaster styled "A3" flat top dissipator on my SARCO barrel...
I figure I can take the original FSB off, then Dremel or hacksaw it down to a super low profile setup, then reattach the gas block after taking end cap off; that would give me an extra A2 front sight post assembly to install on the 2nd FSB tower mounted at rifle length; but it's the mounting I'm trying to figure out. Set screws, cross-bolt (anyone have old Armalite ban era clamp on front sight towers?) Or buy virgin FSB and send to someone to pin?
Bushmaster original Dissipator setup, looks like it used a M4 barrel and pinned FSB
The 16" carbine length bottom, the one I want to turn into a dissipator.
Additional photos of the 16" M4 upper with detachable carry handle
I figure I can take the original FSB off, then Dremel or hacksaw it down to a super low profile setup, then reattach the gas block after taking end cap off; that would give me an extra A2 front sight post assembly to install on the 2nd FSB tower mounted at rifle length; but it's the mounting I'm trying to figure out. Set screws, cross-bolt (anyone have old Armalite ban era clamp on front sight towers?) Or buy virgin FSB and send to someone to pin?
Bushmaster original Dissipator setup, looks like it used a M4 barrel and pinned FSB
The 16" carbine length bottom, the one I want to turn into a dissipator.
Additional photos of the 16" M4 upper with detachable carry handle