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Posted: 9/25/2026 9:26:34 PM EDT
| new build has an adjustable(Superlative Arms) gas block. This is the first non pinned GB I have and wonder what I should do to keep things where they are supposed to be. Should I use red lok tite or rockset for the set screws? The barrel is dimpled for them. I was also thinking about trying to stake the screws . |
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Gas blocks tend to get hot so I'd recommend rockset. I'd also be tempted to bed the gas block with rockset, i.e. put a thin coat of rockset on the journal before sliding on the gas block. I've never done this before, and I've never had one come loose, but if I wanted to be absolutely sure I'd consider it. |
I know I'll never go home.
So set fire to your ships, and past regrets, and be free.
So set fire to your ships, and past regrets, and be free.
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Originally Posted By TGWLDR: Loctite 243 and proper torque. I use knurled set screws personally. +1 This plus a dimple does the job very well. I've never had a gas block come loose with this process. In fact I have had two gas blocks installed with this method that filled my cuss jar when I tried to remove them to swap handguards. If 243 and the proper screws can cause me to swear like a sailor when I am intentionally trying to remove them, then they sure aren't going anywhere by accident. |
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Fasteners initially tightened to a specified torque value create a clamping force that is continously under attack from constant/repeated vibration (every round fired). Once a fastener loses initial tension (referred to as creep), it will only continue to loosen. Thread lockers provide an additional layer of security. Dimples in a barrel serve as an alignment point only. Edit: This will get you rock solid results:   |
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Thanks guys. I used Red Lok tite and torqued to 25in/lbs. All I have at home is the Red, Purple and some Vibra Tite plus some Hot Lock. I don't plan on needing to remove the gas block anytime soon and I guess if I need to and can't get the screws out I'll just cut it off, wouldn't be the first time I've had to cut a gas block off. Any benefit to making a small stake on each screw or will that just mess thing up? ETA. saw the comment above on staking |
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I use rocksett. Higher temp resistance than red and blue. Won't cook off. To remove drip water onto screws and hit with a small amount of heat. Heat doesnt do anything to the rocksett but it can help migrate the water to the threads. Never had an issue removing screws with rocksett. |
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