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Q&A for DEZ Arms A2 Fixed Front Sight Clamp-on w/Bayonet Lug — 6 Questions & 8 Answers

Name DEZ Arms A2 Fixed Front Sight Clamp-on w/Bayonet Lug (4.5)
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Q
Dale W, member, from GA, United States, asked on February 03, 2019

Does this sight also serve as a gas block? And if it does is the roll pin included?

Expert Answer
A
Answered by Armando R., Gear Expert, from IL, United States, on July 10, 2019

Yes, this front sight serves as the gas block as well and includes the gas tube roll pin.

3 of 3 found the following answer helpful.
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Q
Andrew, member, from FL, United States, asked on September 12, 2018

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

A
Answered by DEZ, guest, from WI, United States, on September 21, 2018

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

3 of 6 found the following answer helpful.
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Q
Charlie, guest, from CA, United States, asked on January 03, 2020

Will this fit a anderson 300 blackout barrel ?

Expert Answer
A
Answered by Jonathan D., Gear Expert, from IL, United States, on January 08, 2020

It should as long as the barrel has a .750 gas journal index.

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Q
Tooter, guest, from IL, United States, asked on March 26, 2019

Does it come with the sight blade, spring,decent and swivel hardware

Expert Answer
A
Answered by Armando R., Gear Expert, from IL, United States, on July 10, 2019

No, it does not as those parts are optional direct from the manufacturer. This allows the end user to choose their preference of post.

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Expert Answer
A
Answered by Armando R., Gear Expert, from IL, United States, on July 10, 2019

No, the manufacturer does not include a front sight post assembly (Front Sight Post, Detent and Spring).

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Q
KEN, member, from WA, United States, asked on October 13, 2018

will this fit on a Bushmaster BFI XM15 QRC with a 15mm diameter barrel. thanks

Expert Answer
A
Answered by Ethan C., Gear Expert, from IL, United States, on December 18, 2018

This is for standard .750" gas journal barrels, as long as your barrel has a gas journal diameter of .750" this should fit.

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Last updated 2026-09-20 UTC.