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AR15.COM
3/8/2026 6:10:37 PM EDT
I purchased a 22/45 with the threaded barrel, and have a Dead Air Mask on order.  The Ruger has a very thin (paper thin) washer after the thread protector. Are those folks shooting this pistol suppressed using this washer or discarding it? Once the can comes in I doubt I’ll ever shoot it without the suppressor.
3/8/2026 6:32:28 PM EDT
[#1]
I think that washer is to take up space where there is a height cut in the barrel. I just use it with my Sparrow.
"Hey Teacher, if my kid is misbehaving, slap the kid next to him." -diesel1 (May 2024)
3/8/2026 8:59:11 PM EDT
[#2]
You only use the washer with the factory thread cap. Page 31 in the manual.
3/8/2026 9:47:51 PM EDT
[#3]
I take it off to use my Gemtech Outback II.
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3/8/2026 10:13:09 PM EDT
[#4]
The spring type washer is for use with the Ruger end cap.  Do not use it with the suppressor.
3/8/2026 10:57:05 PM EDT
[#5]
Perfect. Thank you all very much.
3/8/2026 11:04:52 PM EDT
[#6]
Guess I leared something new today. Good thing I only put a few rounds thru it so far.
"Hey Teacher, if my kid is misbehaving, slap the kid next to him." -diesel1 (May 2024)
3/9/2026 7:48:37 AM EDT
[#7]
Quote History
Originally Posted By Rooster-X:
Guess I leared something new today. Good thing I only put a few rounds thru it so far.
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My first can and I was WTF do I do with this washer.  I broke down and read the manual lol.
If life was easy nobody would quit.
3/9/2026 1:07:23 PM EDT
[#8]
Quote History
Originally Posted By DVCER:


My first can and I was WTF do I do with this washer.  I broke down and read the manual lol.
View Quote View All Quotes
View All Quotes
Quote History
Originally Posted By DVCER:
Originally Posted By Rooster-X:
Guess I leared something new today. Good thing I only put a few rounds thru it so far.


My first can and I was WTF do I do with this washer.  I broke down and read the manual lol.

I guess they do include them for a reason! I’ve never read one!

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