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Posted: 11/19/2013 2:39:02 PM EDT
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I've built a 300blk and used a low pro gasblock. This is my first time using one (usually shave the fsb) so i'm not sure of a few things. 1) How do I ensure its lined up perfectly with the gas port? 2) Do you just tighten up the set screws, locktite them or stake them? 3) Do I have to worry about them coming loose? This won't be a high round count rifle as I will be using it for hunting only. Thanks for the help and I hope I'm just over thinking this.
Rifle in question... 
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Quoted:
I've built a 300blk and used a low pro gasblock. This is my first time using one (usually shave the fsb) so i'm not sure of a few things. 1) How do I ensure its lined up perfectly with the gas port? 2) Do you just tighten up the set screws, locktite them or stake them? 3) Do I have to worry about them coming loose? This won't be a high round count rifle as I will be using it for hunting only. Thanks for the help and I hope I'm just over thinking this. I typically line it up visually with the gas tube slid back into the upper, then slide the gas tube into the block. Using the tube as a reference, I'll check alignment visually from front and rear. I've also got a piece of metal stripping the width of the rails on an upper that I'll use as a reference to make sure everything's straight and aligned. Absolutely use a threadlocker on the set screws. I've never staked one myself. ETA: Nice looking build. |
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Quoted:
Ima shoot it first to check function then locktite it. Will red hold up to the heat or is there something stronger / better? Thanks. I've used red with no problems. You'd have to be doing a hell of a lot of shooting to sustain the temperature required for the necessary duration to break loose high-temp Loctite. |
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Quoted:
I've built a 300blk and used a low pro gasblock. This is my first time using one (usually shave the fsb) so i'm not sure of a few things. 1) How do I ensure its lined up perfectly with the gas port? If your barrel is dimpled, seating the set screw in the dimple should ensure that the port is lined up. I always dimple barrels if they're aren't already using the BRDE Engineering diimpling jig. Still, the port on the gas block is usually pretty large and allows for quite a bit of mis-alignment before things stop working. Visually aligning it should be fine though. 2) Do you just tighten up the set screws, locktite them or stake them? I always use rocksett -- not loctite. 3) Do I have to worry about them coming loose? This won't be a high round count rifle as I will be using it for hunting only. Thanks for the help and I hope I'm just over thinking this. I have not seen a properly installed set screw gas block ever come off. |
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Someone ships their gas blocks with Rocksett, though I can't remember who. |
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