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Posted: 1/29/2017 7:31:41 PM EDT
| What am I doing wrong? On both a mil spec and Magpul trigger guard I can not get the pin to go flush. Both are lined up correctly and I have put a lot of pressure on both but they will not go all the way in. |
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This is why I no longer use them.
This is MUCH easier and MUCH safer to install. Attached File Attached File |
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Quoted:
What am I doing wrong? On both a mil spec and Magpul trigger guard I can not get the pin to go flush. Both are lined up correctly and I have put a lot of pressure on both but they will not go all the way in. |
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Get a big set of vice grips and put a few pieces of masking tape on the jaws to not mar up your lower. Now close the jaws loosely over the pin you want to press in and start to screw in the knob on the bottom of the vice grips. Screw in until the jaws are touching the pin, now open up the grips and turn the knob just a 1/4 to 1/2 turn more. Close the grips and it should put pressure on the pin and start to push it in. The jaw will apply a large amount of pressure until they go over center and push the pin in. Open them up, turn in the knob a little more, and close the grips in again thus pushing the pin in further. Keep this up until the pin is flush and you can finish off with a proper sized punch and hammer if you want it in further.
If you use too small a diameter of a punch then you will punch into the center of the roll pin and actually start to spread the pin open and jam it in further. I find this method of slowly pressing in roll pins with vice grips the easiest way to assemble a lower. |
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It could be the roll pin is out of spec, I've seen way too many cases of that in the past two years.
I've said "screw it" on trigger guard rollpins, I now use the Dead On Arms trigger guard, it's almost a direct copy of the Magpul but it has spring loaded pins installed into the trigger guard. Squeeze the pins and pop the trigger guard into place.....three second installation. 
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Quoted:
If you use too small a diameter of a punch then you will punch into the center of the roll pin and actually start to spread the pin open and jam it in further. I find this method of slowly pressing in roll pins with vice grips the easiest way to assemble a lower. Pretty much the same way, except I use a c clamp. |
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Quoted:
It could be the roll pin is out of spec, I've seen way too many cases of that in the past two years. I've said "screw it" on trigger guard rollpins, I now use the Dead On Arms trigger guard, it's almost a direct copy of the Magpul but it has spring loaded pins installed into the trigger guard. Squeeze the pins and pop the trigger guard into place.....three second installation. Plus one for the Dead On Arms trigger guards. Both sizes take more time to describe than they do to install. We sell them also. Great product that Ed Jr. turned me onto right here in arfcom. don't whine, just bing/google it. |
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Quoted:
Pretty much the same way, except I use a c clamp. Quoted:
Quoted:
If you use too small a diameter of a punch then you will punch into the center of the roll pin and actually start to spread the pin open and jam it in further. I find this method of slowly pressing in roll pins with vice grips the easiest way to assemble a lower. Pretty much the same way, except I use a c clamp. I use my drill press. Put a propper roll pin punch in the chuck, pad the receiver so it does scratch up, and pull down on the wheely thing and Bob's your uncle. |
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I used a Little Crow pin pusher which essentially is a clamp that holds a roll pin punch tip that pushes the pin slightly below flush.
Before that roll pin punch with solid support under the bottom ear. Since you got it through one side you are probably just not doing right, but needless to say the wrong size pin could have unintended consequences as can hammering on it without enough support. |
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