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Posted: 1/4/2006 12:23:58 PM EDT
I have monkied around with a few Ars but none had any type of muzzle device, I am trying to tell a buddy how to change out his Flash Hider and I realized I have never taken one off, this is just screwed onto an A2 barrel not a Perm attached. What tool should you use to unscrew it?
Link Posted: 1/4/2006 12:30:40 PM EDT
A 3/4" open end wrench I beleive. It has 1/2"x28 RH threads. Unscrews like and other nut and bolt.
Link Posted: 1/4/2006 12:32:27 PM EDT
Link Posted: 1/4/2006 12:35:59 PM EDT
Thnaks Guys
Link Posted: 1/4/2006 3:34:42 PM EDT
What does the crush washer do? We got his Flash Hider off and I dont think there was a a crush washer or a peal washer on there?
Link Posted: 1/4/2006 3:51:26 PM EDT
so there was no washer on there?

basically a ring that sits on the barrel behind the flash hider, a peel washer being silvin in color and when closely inspected there are layers which are peeled to achieve proper timing of fh. a crush washer has a convex and concave sides to it which crush or flatten when torqued to allow proper timing.
Link Posted: 1/4/2006 3:55:56 PM EDT
There is a ring behind the flash hider but no silver washer
Link Posted: 1/4/2006 3:59:40 PM EDT
Link Posted: 1/4/2006 4:03:52 PM EDT
[Last Edit: 1/4/2006 4:04:39 PM EDT by MTNmyMag]
I put the entire upper in my in the vise with an action block, as far as I can tell there never was a peel washer we put it back on with just the crush washer he says it is "Good Enough" What problems will he have with no peal washer?
Link Posted: 1/4/2006 5:40:45 PM EDT
It is a one or the other type deal. Crush washer crushes so that you can index the FH or a peal washer that has many thin layers that are fused together that can be removed as needed to index the FH.
Link Posted: 1/5/2006 2:41:17 AM EDT
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