Quote:
Originally Posted by Jwcarr1
New to the M&P-15. Can anyone help me with front sight adjustment? I need to push it on down the barrel to allow for a longer quad rail. Not sure how long, just not carbine length.
I figure I need to push those two pins out to slide the sight forward on the barrel. What's the best way to do it?
Thank You.
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You can't move the front sight post because it also serves as part of the gas system. To do what you want to do, you need to get a low-profile gas block, and a mid-length or full-length floating hand guard. This also means you have to change out the barrel nut (most of the floating hand guards on the market come with the appropriate nut and other attaching parts). You also would need to purchase a rail-mounted front sight because your front sight will be gone after making the other ascribed changes.
Finally, you would have to purchase the tools required to remove the factory handguard/barrel nut, and install the replacement parts.
Total approximate cost is $500-$600.