[ARCHIVED THREAD] - Front sight block

Posted: 11/29/2013 10:40:38 AM EDT

I just ordered one of the 16" M4 barrels from the Arfcom black friday sale. Its .750 diameter. I have a A2 front sight block that I took off of a pre-crap Bushmaster m4 it is marked R with a crown on it. Does anyone know the diameter off thoses barrels? Am I good to go with the block I have?

Thanks.

Posted: 11/29/2013 10:45:52 AM EDT

[#1]

It's very likely the same diameter, but you cannot install already-drilled FSB's to virgin barrels, if that's what you're thinking.

Posted: 11/29/2013 11:11:56 AM EDT

[#2]

Quote History

Quoted:
It's very likely the same diameter, but you cannot install already-drilled FSB's to virgin barrels, if that's what you're thinking.

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Not a jig and tapered drill bits. You will likely need to send it off to have the work done if you go that route.

Posted: 11/29/2013 11:16:17 AM EDT

[#3]

Quote History

Quoted:

Not a jig and tapered drill bits. You will likely need to send it off to have the work done if you go that route.

View Quote View All Quotes

View All Quotes

Quote History

Quoted:

Quoted:
It's very likely the same diameter, but you cannot install already-drilled FSB's to virgin barrels, if that's what you're thinking.

Not a jig and tapered drill bits. You will likely need to send it off to have the work done if you go that route.

Posted: 11/29/2013 11:41:35 AM EDT

[#4]

He probably meant:

Not without a jig and tapered drill bits.

Posted: 11/29/2013 11:47:09 AM EDT

[#5]

Awww holy hell.... never thought about that!!!! Shit! Not gunna be as economic as I originally thought.

Thanks guys

Posted: 11/29/2013 4:39:23 PM EDT

[#6]

Quote History

Quoted:
Awww holy hell.... never thought about that!!!! Shit! Not gunna be as economic as I originally thought.

Thanks guys

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LOL, rarely is

[ARCHIVED THREAD] - Front sight block

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[ARCHIVED THREAD] - Front sight block

[ARCHIVED THREAD] - Front sight block