[ARCHIVED THREAD] - Measuring pin diameter

Posted: 4/2/2012 5:29:59 PM EDT

I am looking to install some anti-rotational pins on a pre-ban EA lower, and am not sure of the best way to measure the size of the trigger pins dimensions without buying an expensive tool. Any suggestions?

Posted: 4/2/2012 5:55:53 PM EDT

[#1]

Get .154 pins. EA didn't do .170 pins, only Colt did. .155 pins are only if your holes are already egged out to hell and gone.

Posted: 4/2/2012 7:49:18 PM EDT

[#2]

Harbor Freight regularly has a 6" digital caliper on sale for $9.95. Not an expensive thing at all to have around.

Posted: 4/2/2012 8:37:24 PM EDT

[#3]

Get a cheap micrometer or caliper from HF. While I wouldn't trust them on anything I need serious precision for, they work just fine for determining which standard size your pins are.

[ARCHIVED THREAD] - Measuring pin diameter

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[ARCHIVED THREAD] - Measuring pin diameter

[ARCHIVED THREAD] - Measuring pin diameter