George,
Some were in the deep dark recesses of my addled mind I seem to recall that there were people who cut off the carry handle on the ar-15 for the purpose of allowing different sighting systems to be employed in front of the stock rear sight........do you have any knowledge or experience on that modification? It might be a simple solution to purchasing and replacing the upper.........thankyou for your time...fubsy.
Some were in the deep dark recesses of my addled mind I seem to recall that there were people who cut off the carry handle on the ar-15 for the purpose of allowing different sighting systems to be employed in front of the stock rear sight........do you have any knowledge or experience on that modification? It might be a simple solution to purchasing and replacing the upper.........thankyou for your time...fubsy.