steve126a
03-15-12, 21:03
I received a new 16" midlength lightweight upper from PSA two weeks ago and I wanted to install a Troy TRX extreme rail. A project that should take about an hour is now on it's second week.
The first problem I encountered was trying to remove the A2 front sight post. Tapping the tapered pins out was nearly impossible (yes I went in the right direction). I bent two punches before I finally let the upper sit in a cold garage overnight. The next morning I took the largest diameter punch I had and smashed it with a hammer. They finally started to budge and once they started moving, they came out fairly easy, but getting them to budge was ridiculous.
Next, I secured the upper in a DPMS vice block assembly and into my vice and attached my barrel nut wrench. Turning the wrench in the proper direction, the nut simply will not move. I thought it might be my vice not holding it well enough, so I took the upper to my friends house and used his heavy duty vice. Neither of us could break the nut loose and my friend eventually used so much force that he tore his vice from his work bench (it was bolted in). I'm turning the barrel nut counter-clockwise if you are looking down the barrel from the muzzle end.
My question to the people at PSA: What the hell do you torque these things to?!?!
I tried heating the nut for a while with a heat gun (I don't have a torch) and this time I used a breaker bar. Nothing. I'm at my wits end with this fucking thing. It simply should not be this difficult to remove.
The first problem I encountered was trying to remove the A2 front sight post. Tapping the tapered pins out was nearly impossible (yes I went in the right direction). I bent two punches before I finally let the upper sit in a cold garage overnight. The next morning I took the largest diameter punch I had and smashed it with a hammer. They finally started to budge and once they started moving, they came out fairly easy, but getting them to budge was ridiculous.
Next, I secured the upper in a DPMS vice block assembly and into my vice and attached my barrel nut wrench. Turning the wrench in the proper direction, the nut simply will not move. I thought it might be my vice not holding it well enough, so I took the upper to my friends house and used his heavy duty vice. Neither of us could break the nut loose and my friend eventually used so much force that he tore his vice from his work bench (it was bolted in). I'm turning the barrel nut counter-clockwise if you are looking down the barrel from the muzzle end.
My question to the people at PSA: What the hell do you torque these things to?!?!
I tried heating the nut for a while with a heat gun (I don't have a torch) and this time I used a breaker bar. Nothing. I'm at my wits end with this fucking thing. It simply should not be this difficult to remove.