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Posted: 1/7/2014 7:21:49 AM EDT
| I have a S&W M&P 15 sport. I'm looking to remove the front iron sight so I can put a full length rail on. When replacing the gas block to fit a full length rail what kind of gas block do I need? I have heard some people say a low profile and I have also seen ones with built in rails? |
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You'll need a big punch to start them. 5/16 or 3/8. Hit them once with a big hammer, like a 32oz Ball Peen. They go out left to right, as you look at things from the rear of the weapon.
Also make sure the sight block is up against something solid, or it will bounce. Once you get the pins broke loose. Go to the smaller punch they will come right out. 
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Quoted:
You'll need a big punch to start them. 5/16 or 3/8. Hit them once with a big hammer, like a 32oz Ball Peen. They go out left to right, as you look at things from the rear of the weapon. Also make sure the sight block is up against something solid, or it will bounce. Once you get the pins broke loose. Go to the smaller punch they will come right out. this is correct except I would verify the diameter of the pin ends with a micrometer before proceeding I have seen them in backwards before |
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Quoted:
this is correct except I would verify the diameter of the pin ends with a micrometer before proceeding I have seen them in backwards before Quoted:
Quoted:
You'll need a big punch to start them. 5/16 or 3/8. Hit them once with a big hammer, like a 32oz Ball Peen. They go out left to right, as you look at things from the rear of the weapon. Also make sure the sight block is up against something solid, or it will bounce. Once you get the pins broke loose. Go to the smaller punch they will come right out. this is correct except I would verify the diameter of the pin ends with a micrometer before proceeding I have seen them in backwards before I would add to that that it might not matter at all. My RRA pins were the same and came out in opposite directions so it might not matter at all. |
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