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Posted: 9/17/2007 4:10:21 PM EDT
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Ok, this will probably win the dumbest question of the month award, but here goes... I was trying to knock out the roll pin on the rear of the trigger guard (to replace it with a magpul). I used a 1/4 inch roll pin punch as specified in the lower assembly guide. It seemed like it was taking some pretty good whacks to get it to budge, but it finally came out. But now the punch is stuck in the trigger guard hole. REALLY stuck. I tried all of the obvious methods to get it loose, but it won't budge. I tried to use a smaller punch and tap it out from the other side, but I was afraid to hit it too hard. Any suggestions? Thanks in advance! |
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My thoughts are it was mushroomed before use. Go purchase a quality set (at least sears) to use only on your ARs. You should NEVER need enough force to mushroom a punch. If you think you might, use a different punch and not your dedicated AR punches. Happy that it worked out for you. 
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Glad you got it taken care of... freezer would have been counterproductive in this instance. Aluminum changes size more with heat variation than steel, so in this instance you would want to heat the aluminum to release the pressure. Freezing the assembly would only make it tighter. Freezing works on barrel nuts because the steel nut is on the outside of the aluminum receiver... opposite configuration of parts. |
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Nice job, way to think "outside the box". That little gem, plus the advice on the freezer, goes into the "mental toolbox" I keep. No, not all jobs are this tough, but in all the assembling I have done, there is always some problem which requires "finesse" to straighten out. Looks like you got the finesse thing all worked out. 
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