Am I correct this should not be removed for cleaning? Seems like it would require fair amount of force and doesn’t come off easily.
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A400 piston ring
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DooFighter
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You can buy just the ring or the entire valve (including the ring) as replacement parts, so there must be a way to get that ring on there and be OK. I just purchased both to have ready in the bag for a new-to-me A400 Xcel as others have commented that these parts sometimes give people trouble. This was from Midwest Gun Works. YMMV
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I just replaced the ring on my A400 as I noticed a tiny offset. Very easy -- just do it gently. The one I removed actually looked fine and I stuck it aside should I ever need one in a pinch.
So you just pulled it off?
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Interesting assortment of brushes. Any chance you might post what they are and where you got them?
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fairly good vid for it>
I just pulled that pic off the internet but Harbor(China) Freight had a 5 pack assortment last time I bought some. Home Depot has the one that fits inside cup on barrel to clean up after scraping crud out. might need a touch of trimming at times but cleans it up nicely.
Thanks for that video - very helpful!
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just as good but takes longer if done right.
I just leave mine soak overnight and blow dry. These pistons don't need to sparkle. Im just not that anal about cleaning gas gun pistons.
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On more complex pistons like the Browning Active valve style the solvent dunk is the way to go. I am actually getting ready to order an extra 12 and 20 to rotate, keeping round count consistent for wear.
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That's what the L4S pulse system looks like.
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I have been pretty ignorant of automatics because I have never owned one until now A400 excel. I don’t have it in my possession yet but posts like these already have me thinking of what spare parts do I need to have on hand?
Are these available to buy
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