Building a “Commando” style 308, couldnt find an Armalite carry handle so using a RRA 308 carry handle. Downside RRA large platform are not Armalite pattern, and they are not DPMS pattern. Need some mods to the carry handle and the Noreen upper.
The RRA sight recesses into the upper about 0.160" when fully lowered.
It’s also about1/4" longer then a DPMS pattern upper.
On both ends