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It says clamp on but, does my barrel still need to be milled for an a2 sight post? — 2 Answers

by Andrew, from FL, United States Asked on September 12, 2018

Name DEZ Arms A2 Fixed Front Sight Clamp-on w/Bayonet Lug (4.5)
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Answered by DEZ, guest, from WI, United States, on September 21, 2018

There's no milling/machining required to install this front sight.

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Answered by Harold, guest, from TX, United States, on September 21, 2018

This is not a true "clamp-on" sight - it uses 5 set screws to affix it to the barrel. The barrel doesn't need any machining, but it does benefit from having the dimple for a traditional set-screw gas block drilled opposite the gas port. Without this dimple, you'll need to lightly snug all the set screws, level your sight, then go back & tighten them up. If the barrel is dimpled, just tighten the screw opposite the gas port first, then the remaining screws. Use a tiny bit of red loctite on each screw (LESS IS MORE!!!).

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