I'm not sure if this belongs here or in Build it Yourself. I decided on Troubleshooting because I am in trouble.
I finally bought a BUIS for my AR and I wanted to get a rough zero with the irons before I headed out to the range. I flipped up the BUIS to co-witness with the EOTech and dialed in my windage and then moved to the front sight. I can’t get the post to budge. The plunger is free and moves up and down easily but the post itself seems to be frozen. How frozen? I sheared the posts off of a front sight adjusting tool. I grabbed the post with locking pliers and tried to rotate it while depressing the plunger and, yup…you guessed it, I twisted the post and it sheared off leaving a little tapered high spot that I can’t grab with pliers. I also tried to rotate the base with a punch while depressing the plunger and I just cannot get it to turn in either direction. Should I try cutting a notch in it with a dremel and use a flat head screw driver to turn the post out? Should I file it flat and drill it? Should I kiss it with a MAPP torch before I try and rotate it again? I’m hoping someone’s run into this before and some sort of “approved” method exists. I really love my upper and I don’t want to bugger it up. I welcome your suggestions.
Thanks,
Hanz