Crush washer alternatives?

mackm

Member
Rating - 98.9%
87   1   1
They're out of stock everywhere in stores and I want one for this weekend so shipping is out of the question.. Anyone use a splitwasher? Other options?

If anyone in the Uxbridge area has one ill buy one off ya!
 
You should use jam nuts. It's reusable and very solid.

HTB1K0GaB2iSBuNkSnhJq6zDcpXa2.jpg_q50.jpg
 
Maybe it’s because it’s what I’m used to but I prefer peel-washers. They’ve gone out of style since the crushwasher was introduced but can still be found on eBay and the odd retailer.

True North Arms has them in stock I believe. They are a little more work but I prefer the aesthetics.
 
I would get a shim kit. Shimming can take a bit of time to get the muzzle brake timed right but they are better than crush washers in my opinion. A jam nut would also work well. Like stated above.
 
They're out of stock everywhere in stores and I want one for this weekend so shipping is out of the question.. Anyone use a splitwasher? Other options?

If anyone in the Uxbridge area has one ill buy one off ya!


Would it matter if the crush washer is for a .308 caliber barrel? If not PM me your address I'll mail it too you.
 
They're out of stock everywhere in stores and I want one for this weekend so shipping is out of the question.. Anyone use a splitwasher? Other options?

If anyone in the Uxbridge area has one ill buy one off ya!

Split washer or lock washer works just fine if the device doesn’t need to be timed. It’s what was used on the original M16 as the flash hider slots went 360. The closed off bottom portion of the M16A2 flash hider is what necessitated the use of peel washers so that the flash hider could be timed correctly. Crush washers were brought out as an easier and cheaper method to time the device with the adoption of the M4 carbine I believe.

Shim kits are just a more expensive version of a peel washer.
 
Jam nuts can potentially back off, they also take up more space on the threads then a crush washer.

I respectfully disagree. The amount of torque I apply to crush washers is tiny during the crush phase, vs torquing two 3/4 wrenches on the jam nut and muzzle device. Sometimes I feel like I’m about to strip out the muzzle threads with a jam nut.

Maybe I am missing something, but why do you think a jam nut would back off easier than a crush washer?
 
The OP posted on the 28th, looking for a solution for this weekend.
Hope he found something.

If I am installing a brake, I like to set it up so that the brake and barrel torque together on a shoulder with proper indexing.
Crush washers, peel washers, shim kits, jam nuts all create substitute shoulders.
If a spacer must be used, because torquing the brake and barrel together isn't an option, I just machine up a little ring.
 
Back
Top Bottom