F marked FSB Height?

**Puffy93** · 06-20-09, 23:34

Okay, so I recently had an A2 style FSB installed on my AR and I thought it was F height but it does not marked. How tall is an F marked FSB compared to an A2?

**DRich** · 06-20-09, 23:37

Pics courtesy of GOTM4:

**Puffy93** · 06-20-09, 23:39

Thanks.

**lanceriley** · 06-21-09, 05:54

curious.. why ask?

**Molon** · 06-21-09, 09:56

Originally Posted by DRich

Pics courtesy of GOTM4: Try again.

.....

**Robb Jensen** · 06-21-09, 12:08

That's not my pic, but I've used it for reference.

**DRich** · 06-21-09, 12:19

Originally Posted by Molon

.....

Well, from the picture properties, it appears to be hosted on GotM4's picture site and his post didn't didn't mention you. https://www.m4carbine.net/showthread.php?t=13149

My apologies.

**Puffy93** · 06-21-09, 12:32

Originally Posted by lanceriley

curious.. why ask?

Just wanted to make sure it is F height, it isn't marked like it should be.

**Bread is People** · 06-21-09, 15:05

Not to hijack or anything, but is there any real advantage/disadvantage in using one over the other? The reason I ask is that I'm probably going to get an armalite flat top upper sooner or later, but their FSBs are not F marked. I'd probably end end up replacing it with a railed gas block anyways, but it's been on my mind a while now.

**lanceriley** · 06-21-09, 18:47

it will matter when you attempt to zero @50 yards

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