Rear Sight?

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WDS485
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Joined: Tue Jul 02, 2019 9:37 am
Country: USA
Location: NH

Wed Apr 22, 2020 10:56 am

I have a standard 18" upper.
Which rear sight would you recommend? Would I need to modify the front post?
Thanks.


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apex
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Country: USA
Location: MD

Wed Apr 22, 2020 1:00 pm

You mean the 16in upper, the muzzle device legally does not matter unless it's pinned and welded in place.
Any standard-height AR-15 rear sight will work, you will just have to dial-up the front sight post quite high. If you want to use T91 rear sights, you will have to switch out the post for either a T91 post or any standard-height AR-15 post.

See my posts here for more info
viewtopic.php?f=5&t=315
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WDS485
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Joined: Tue Jul 02, 2019 9:37 am
Country: USA
Location: NH

Sun Apr 26, 2020 9:50 am

I stand corrected - it is 16". Do I need an AR15 tall post?
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apex
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Location: MD

Sun Apr 26, 2020 12:25 pm

If you're planning to use a standard-height AR-15 rear sight (A2 carry handle, MBUS, etc) you will need the tall post that comes with the upper.
If you're planning to use T91 rear sights you will need either a T91 post or a standard-height AR-15 front post.
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WDS485
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Posts: 6
Joined: Tue Jul 02, 2019 9:37 am
Country: USA
Location: NH

Sun Apr 26, 2020 12:52 pm

Thanks.
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