Warning

 

Close

Confirm Action

Are you sure you wish to do this?

Confirm Cancel
Member Login
Site Notices
10/20/2017 1:01:18 AM
9/22/2017 12:11:25 AM
Posted: 10/3/2005 10:08:52 AM EDT


i've put flash hiders on before using the peel washers and the old lock washers, but i tried one fo the "crush" washers the other day...

what's the deal? with my washer and FH on hand-tight, the FH needs to go about 1/2 turn to be where it needs to be. if i start to crank down on it though, it kind of looks like i'm going to torque the barrel/upper/pin area. how much is too much?

should i grind the "crush" washer down a bit before hand?

it's an M4 profile barrel in a CMT upper with a Phantom. do i have to worry about damaging anything, or do i just crank tat bad-boy down?


Link Posted: 10/3/2005 10:30:32 AM EDT
Why didn't you use a peel washer?
Link Posted: 10/3/2005 10:40:12 AM EDT
When I put my FH (Phantom also) on. I cranked it down using about 15lbs of torque. The washer "crushed" and the FH lined up perfectly.

Link Posted: 10/3/2005 10:43:11 AM EDT
I had the same thing and took it to the gunsmith and he said it wouldn't crush enough to index.
Brownells was backordered on peel washers.
So I crushed the shit out of mine to get it to index,
I've fired it since with no adverse effects.
YMMV
Link Posted: 10/3/2005 10:48:07 AM EDT

Originally Posted By Brahmzy:
Why didn't you use a peel washer?




i normally do, but i can never get them "just right". i always peel off too little, take averyhitng back off, peel a bit more, and then find out i've taken off too much.

i figured i'd try a crush washer this time, but it looks/feels like it won't go. honestly, it doesn't feel like it will crush at all.


Link Posted: 10/3/2005 11:02:00 AM EDT
You can slightly "pre-crush" the crush washer in a vice if you need to.
Link Posted: 10/3/2005 11:03:32 AM EDT

Originally Posted By Brahmzy:
Why didn't you use a peel washer?




that wasn't the question
Link Posted: 10/3/2005 11:06:13 AM EDT

Originally Posted By Ripcode:
You can slightly "pre-crush" the crush washer in a vice if you need to.



good thinking. damn, i guess that's my answer.

thanks.




Link Posted: 10/3/2005 1:36:35 PM EDT
My armorer's manual says that the flash suppressor torque spec is 25-30 ft. lbs.
Top Top