Home AR-15 AR-15 Gas Tube Installation – Geissele Gas Block Tools

AR-15 Gas Tube Installation – Geissele Gas Block Tools

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Everyone asks where I find AR-15 stuff in stock or where I order from, so here you are:

I install my Damage Industries gas tube into my Geissele gas block using Geissele’s gas block tools. The Geissele gas block tools are designed to make installing the small roll pin as easy as possible.

Geissele Tools:
Damage Ind. Gas Tube:
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25 COMMENTS

  1. Hey so, I'm doing an upper build and when I put the gas tube into the gas block, the holes don't align very well for me to put the gas tube roll pin through, do I need to tap it in a little further with a hammer? Or possibly file the gas tube down?

  2. So in another build video they mention a common problem in building an AR is over or under gasing the rifle. I am about to start my first build am going to invest in these tools but was hoping you could explain which tube or pressure block to go with? I seem to remember numbers like 700, 750 & 780 there may have been lower numbers as well is this something that is figured by berral length or caliber or is it more trail and error. Thanks for any help.

  3. I've been watching and re-watching a bunch of your videos to help me with my own first AR build.

    I have to say though, I am surprised you did not try to use a vice grip to put this pin in. That's how I installed my bolt catch pin.

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