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Handguard length? #16272822 07/22/21
Joined: Feb 2002
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pointer Offline OP
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Is there a formula you use for determining what handguard length you use? The AR I am putting together will have an 18" barrel. Thinking of going with a 16-17" free float handguard. I like the look and will not be using any irons.

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Re: Handguard length? [Re: pointer] #16273102 07/22/21
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A 15 inch or greater free float handguard should completely cover your gas block, if your barrel has rifle length gas.

[Linked Image from cdn3.volusion.com]

Re: Handguard length? [Re: pointer] #16273142 07/22/21
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antelope_sniper Offline
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Originally Posted by pointer
Is there a formula you use for determining what handguard length you use? The AR I am putting together will have an 18" barrel. Thinking of going with a 16-17" free float handguard. I like the look and will not be using any irons.


I like a handguard that ends just before the threads begin.


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Re: Handguard length? [Re: pointer] #16273190 07/22/21
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pointer Offline OP
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Thanks for the information! The barrel I'm looking at is mid-length gas, so it should be covered easily enough.

The "formula" regarding the location of the threads was very helpful. I will contact the barrel manufacturer about that measurement.

Re: Handguard length? [Re: pointer] #16273196 07/22/21
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TWR Offline
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Ya I have a couple of 13” hand guards on 16” barrels but my last one, I used a 15” and I just really like the extended rail.

I get a longer sight radius and more room to add my light where it needs to be instead of where it has to be. And I do like the way it looks.

IC-A

Re: Handguard length? [Re: TWR] #16273250 07/22/21
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Tyrone Offline
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Originally Posted by TWR
Ya I have a couple of 13” hand guards on 16” barrels but my last one, I used a 15” and I just really like the extended rail.

I get a longer sight radius and more room to add my light where it needs to be instead of where it has to be. And I do like the way it looks.

I can see how it would help to have room for the light/accessories AND still be able to place your support hand where it needs to be.
Thanks.


Politics is War by Other Means
Re: Handguard length? [Re: Tyrone] #16273502 07/22/21
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bsa1917hunter Offline
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Originally Posted by Tyrone
Originally Posted by TWR
Ya I have a couple of 13” hand guards on 16” barrels but my last one, I used a 15” and I just really like the extended rail.

I get a longer sight radius and more room to add my light where it needs to be instead of where it has to be. And I do like the way it looks.

I can see how it would help to have room for the light/accessories AND still be able to place your support hand where it needs to be.
Thanks.

Yes, but the part about sight radius is a moot point. Sights mounted on a handguard are not for precision work, so the sight radius doesn't matter. For an 18" barrel like the op has (mid length gas system), a 13"-15" handguard would be ideal.


Originally Posted by raybass
I try to stick with the basics, they do so well. Nothing fancy mind you, just plain jane will get it done with style.

Originally Posted by Pharmseller
You want to see an animal drop right now? Shoot him in the ear hole.
P


BSA
Re: Handguard length? [Re: bsa1917hunter] #16273555 07/22/21
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TWR Offline
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Originally Posted by bsa1917hunter
Originally Posted by Tyrone
Originally Posted by TWR
Ya I have a couple of 13” hand guards on 16” barrels but my last one, I used a 15” and I just really like the extended rail.

I get a longer sight radius and more room to add my light where it needs to be instead of where it has to be. And I do like the way it looks.

I can see how it would help to have room for the light/accessories AND still be able to place your support hand where it needs to be.
Thanks.

Yes, but the part about sight radius is a moot point. Sights mounted on a handguard are not for precision work, so the sight radius doesn't matter. For an 18" barrel like the op has (mid length gas system), a 13"-15" handguard would be ideal.


When you get old and can't see the front sight until it's way out there, you'll understand....

Re: Handguard length? [Re: pointer] #16273745 07/22/21
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Bluedreaux Offline
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When using a barricade for support a longer hand guard also let’s you spread out your points of contact without getting the barrel on the barricade.

I’ve used a 15” rail on an 18” barrel and didn’t feel handicapped. I’m not sure I could take advantage of anything longer.


Originally Posted by SBTCO
your flippant remarks which you so adeptly sling
Re: Handguard length? [Re: Bluedreaux] #16274752 07/22/21
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bsa1917hunter Offline
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Originally Posted by Bluedreaux
When using a barricade for support a longer hand guard also let’s you spread out your points of contact without getting the barrel on the barricade.

I’ve used a 15” rail on an 18” barrel and didn’t feel handicapped. I’m not sure I could take advantage of anything longer.

15" handguard on an 18" barrel looks fitting too.
[Linked Image from i.imgur.com]


Originally Posted by raybass
I try to stick with the basics, they do so well. Nothing fancy mind you, just plain jane will get it done with style.

Originally Posted by Pharmseller
You want to see an animal drop right now? Shoot him in the ear hole.
P


BSA
IC-B

Re: Handguard length? [Re: TWR] #16274757 07/22/21
Joined: Aug 2010
Posts: 35,859
bsa1917hunter Offline
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Originally Posted by TWR
Originally Posted by bsa1917hunter
Originally Posted by Tyrone
Originally Posted by TWR
Ya I have a couple of 13” hand guards on 16” barrels but my last one, I used a 15” and I just really like the extended rail.

I get a longer sight radius and more room to add my light where it needs to be instead of where it has to be. And I do like the way it looks.

I can see how it would help to have room for the light/accessories AND still be able to place your support hand where it needs to be.
Thanks.

Yes, but the part about sight radius is a moot point. Sights mounted on a handguard are not for precision work, so the sight radius doesn't matter. For an 18" barrel like the op has (mid length gas system), a 13"-15" handguard would be ideal.


When you get old and can't see the front sight until it's way out there, you'll understand....

Ok buddy. You made me laugh. I guess I will wait and see.. Thanks


Originally Posted by raybass
I try to stick with the basics, they do so well. Nothing fancy mind you, just plain jane will get it done with style.

Originally Posted by Pharmseller
You want to see an animal drop right now? Shoot him in the ear hole.
P


BSA

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