Roll pins - Page 1

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Posted: 12/25/2017 12:42:25 AM EDT

Quick question can you re use roll pins on an ar? I got mixed responses on re using the pin for the gas block. Also I took apart my bcg do I need to use new pins that hold in the ejector and extractor?

Posted: 12/25/2017 12:51:10 AM EDT

[#1]

If the pin is not damaged, reuse it. Removal does nothing to degrade performace unless damaged.

Posted: 12/25/2017 12:51:40 AM EDT

[#2]

It’s highly recommended.

Posted: 12/25/2017 12:58:46 AM EDT

[#3]

With the price of a roll pin, meh

Kinda like reusing a cotter pin, I've always just viewed such things as a one use item.

Posted: 12/25/2017 5:41:39 AM EDT

[#4]

Using roll pin punches can help save the pin from deforming.

https://www.brownells.com/gunsmith-tools-supplies/general-gunsmith-tools/punches/roll-pin-punches-prod26482.aspx

Posted: 12/25/2017 8:35:18 AM EDT

[#5]

Quoted:
Quick question can you re use roll pins on an ar? I got mixed responses on re using the pin for the gas block. Also I took apart my bcg do I need to use new pins that hold in the ejector and extractor?

View Quote

The extractor pin is not a roll pin. Unless it had a lot of use, showed damaged, or was defective I would not replace it in my gun.

Posted: 12/25/2017 11:19:41 AM EDT

[#6]

For me, roll pins are a one time use item.

Other items that are one time use include: taper pins, crush washers, castle nuts, end plates, gas keys, gas key screws and pistol grip screw lock washers. Also, depending on how bad they look, barrel nuts.

Posted: 12/25/2017 11:24:53 AM EDT

[#7]

I've reused roll/spring pins/taper pins and barrel nuts several times over. Never an issue unless damaged.

Posted: 12/25/2017 11:38:06 AM EDT

[#8]

Okay I bought a few extra roll pins for the bcg for 2 bucks. What about straight pins used to pin the gas block to the barrel? Its not a roll pin just a straight pin. Also can you reuse the firing pin retaining pin? All my life I have heard never to use the same pin twice.

Posted: 12/25/2017 12:28:37 PM EDT

[#9]

Quote History

Quoted:
All my life I have heard never to use the same pin twice.

View Quote

Then don't. Problem solved.

Posted: 12/25/2017 12:35:42 PM EDT

[#10]

Thats just I was told for roll pins. I wont use a roll pin twice but what about straight pins that aren't coil or roll pins?

Posted: 12/25/2017 2:55:55 PM EDT

[#11]

Quote History

Quoted:
That's just I was told for roll pins. I won't use a roll pin twice but what about straight pins that aren't coil or roll pins?

View Quote

The firing pin retaining pin can be used over and over again. Straight pins for the gas block usually need to be replaced once removed if they are anything like what RRA or LMT uses.

Posted: 12/25/2017 4:55:35 PM EDT

[#12]

I believe they are dowel pins like these. https://brdengineering.com/products/18-x-34-416-ss-dowel-pin

Posted: 12/25/2017 5:34:20 PM EDT

[#13]

Quoted:
Quick question can you re use roll pins on an ar? I got mixed responses on re using the pin for the gas block. Also I took apart my bcg do I need to use new pins that hold in the ejector and extractor?

View Quote

NO ! Roll pins are a one time use thing. They're so cheap there is no good reason why you should not have some in stock. Oh sure there is some cheap ass people who will tell you to reuse the pin but once you remove one you should replace it with a NEW roll pin.

The extractor pin is not a roll pin. The ejector pin is.

ETA Spelling