Pennsylvania Firearm Owners Association

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Thread: Choosing a LP gas block for ar10 - pinned vs set screws?

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January 6th, 2021, 07:38 PM #1
HanzMcFeely

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Choosing a LP gas block for ar10 - pinned vs set screws?

Collecting parts for a build, and looking at gas blocks and tubes.

The build im looking at calls for a .750 gas block and mid length tube (18” ER Shaw 4150V barrel). I’m looking for durability and reliability over anything else. Gas tube I’ve settled on a Tacfire mid length.

I keep seeing different style steel gas blocks. Some have roll pin, some have two set screws. Which is the better option?

I’m leaning towards the one with 2 set screws, just because I don’t trust roll pins (I’d assume they would need to be permanently staked?)...

FWIW, it’ll be used under a free float rail...

Last edited by HanzMcFeely; January 7th, 2021 at 07:44 AM.

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