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 Post subject: Need parts
PostPosted: Fri Aug 03, 2018 9:56 am 
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Joined: Fri Aug 03, 2018 9:27 am
Posts: 1
I have a RM 422 Mendoza (22cal) air rifle. Have been trying to track down parts and especially seals. Anyone have an address I can contact for these parts?


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 Post subject: Re: Need parts
PostPosted: Fri Aug 03, 2018 10:08 am 
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Joined: Wed Oct 29, 2014 10:49 am
Posts: 243
Location: QC
This thread might be of interest: topic72511.html


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 Post subject: Re: Need parts
PostPosted: Sun Aug 05, 2018 4:35 am 
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Joined: Thu May 07, 2015 8:30 pm
Posts: 1184
Location: Eastern Townships
Hi Scott,

I too have an RM422 air rifle and although I got a good one, I did some research for parts, ''just in case''. I didn't find a lot of parts sources/infos, this rifle seems to be a black sheep amongst the Mendoza/Crosman clan. However PyramydAir/Oshoot have some parts availables: https://www.oshoot.ca/en/43-mendoza-parts No seals though.

I found a cross reference chart in PDF format showing that the main seal is the same for all air rifles models listed, so maybe if you find a source for a specific model chances are the seal may fit your rifle. The models listed in the chart are:

RM-177, RM-222, RM-277, RM-377, RM-522, RM-577, RM-677, RM-622, RM-777, RM-877. Original piston seal part # seems to be RM-163. I believe I saw somewhere the 522 is very similar to the 422.

An option I see is using those screw-on seals made to replace leathers seals, like this one https://www.airgunsource.ca/en/vortek-v ... eplac.html, but machining the piston would be required. If you can't find a source for a seal, custom machining one could be another option. I made a piston seal out of Teflon for an old Relum rifle and it gave great results, more power and smoother shot cycle.

Hope that helps.


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