Deserthunter
Member
I'm having the sear block removed from my pre-ban 7.62 x 39 , 1990s Colt AR-15 so I can install a new upper with an automatic bolt, which will not work in an AR with sear block. My Colt also has the larger diameter, 0.169-inch, hammer and trigger pins.My question is whether I am good to go with my current trigger group or do I need to do anything with it to accommodate a new upper. I know removing the sear block allows the opportunity to install a more precision trigger that uses the larger l diameter pins, but can I simply keep the trigger setup I have without issues regarding a new upper. I want a new upper so I can get rid of the fixed carry handle and have a more modular rifle