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Questions & Answers
how does it wok Expert Answer

The Yankee Hill Machine 5.56mm Crush Washer can be used with a muzzle device in order to properly time the muzzle device with your rifle/pistol.

by Ethan, Gear Expert, July 6, 2022
Customer Reviews
Helpful Positive Review
Great quality perfect crush by Brian, Verified Owner, June 6, 2024
I watch a YouTube video about crush washers and the guy show 5 top names and showed how they ‘crush’ and this was the best most consistent over all and I now now it’s true.
3/3 found this helpful
Helpful Positive Review
Works great by Big Ron, November 14, 2016
I installed this crush washer on a custom upper build with a bunch of various parts. everything went together with no issue and it works fine. It's very important to remember that if you're doing a new build you should not reuse the crush washer. I...
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2/2 found this helpful
Most Recent Reviews
Good price. well made by Sal Cappuccino, Verified Owner, September 1, 2021
It’s a crush washer. It does exactly what it supposed to do. I use them on all my barrels with muzzle devices. Yankee Hill is known for quality machining and manufacturing. This is well-made and machined. There’s not too much else love to say. Looks ...
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Most Recent Reviews
Works like a champ by ScottGA, August 15, 2018
Perfect fit for any AR15. The crush washer is great for timing any flash hider. Great value and fast shipping from Optics Planet. I would get it again for my next upper build. Always a pleasure to purchase from here.
Most Recent Reviews
Does what it's supposed to do. by the sheriff, September 7, 2016
I prefer a peel washer because a crush washer is very hard to crush. Unfortunately peel washers were out of stock. Other than that it's a simple piece of hardware that does what it's supposed to do. That's why I gave it five stars. There is nothing m...
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Read All 5 Reviews

Code: YHM-CPW-YHM-28-5C-W

MPN: YHM-28-5C-W

UPC: 816701015539

List: $9.00Save 56%
$3.99

Product Info for Yankee Hill Machine 5.56mm Crush Washer For 1/2 Inch Threads YHM-28-5C-W

Use these crush washers to install our flash hiders, muzzle brakes, or any other device that needs to be oriented to the barrel. Not to be used on any Q.D. suppressor mount.image

Specifications for Yankee Hill Machine 5.56mm Crush Washer For 1/2 Inch Threads YHM-28-5C-W:

Mfg Item Num:  YHM-28-5C-W
Type:  ACCESSORIES - GUN ACCESSORIES - GUN PARTS
made in specialized factories:  made in specialized factories
Tactica:  Tactical
Master Model Header:  5.56mm Crush Washer

Yankee Hill Machine 5.56mm Crush Washer For 1/2 Inch Threads YHM-28-5C-W Orderable Models

List of Orderable Models

  • Yankee Hill Machine 5.56mm Crush Washer For 1/2 Inch Threads YHM-28-5C-W , MPN: YHM-28-5C-W , UPC: 816701015539 , Code: YHM-CPW-YHM-28-5C-W
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Last updated 2026-07-07 UTC.