NAA mini .22lr revolver problem -

[elmacgyver0]

Perhaps the spring behind the button rusted and that is what's holding it up.
Try some Iron Out in the water for the ultrasonic.
There is an answer to this.

[schutzen-jager]

thanks for the reply, spring action is functioning properly -

[popper]

If the plunger doesn't push in, order a new shaft from NAA and dremel the old one off. The spring just holds the pin out, ball fits in detent in pin and barrel. Or try the 4-6 thous feeler gauge - they are cheap. Navel jelly will dissolve rust but it has to get out, US may not alloy small particles to float out. Anyway, new pin assy is cheaper than shipping.

[elmacgyver0]

I would try the thin feeler gauge as popper suggests.
You should be able to twist the pin enough to see a bit of the ball, at that point hold the button in and insert the feeler gauge.
You probably need to remove the grips and hold the gun in a vise with padded jaws so you can keep the button depressed while doing all this manipulation.

[schutzen-jager]

If the plunger doesn't push in, order a new shaft from NAA and dremel the old one off. The spring just holds the pin out, ball fits in detent in pin and barrel. Or try the 4-6 thous feeler gauge - they are cheap. Navel jelly will dissolve rust but it has to get out, US may not alloy small particles to float out. Anyway, new pin assy is cheaper than shipping.

thanks for the reply the plunger + spring are functioning properly, it seems that detent ball is not retracting into the recess - the parts list that came with it shows the cyl. pin only available as a complete assy. - when i hear from NAA i'll just order a new pin assy. -

[schutzen-jager]

again thanks for the replies - heard from NAA + they are shipping a replacement assembly - will post when it arrives -

[schutzen-jager]

received the replacement pin from NAA a few minutes ago, now functioning like new - could find no visible problem with old one - i do not know what was causing detent ball to not retract - pin assy. is a sealed unit + days of soaking in acetone, choke cleaner, kroil + every other solvent i had + an ultra sonic cleaner did little to help - spring + plunger action feel identical on both new + old, possible gum or carbon build up internally ? -kudos + an atta boy to Jason at NAA -

[sigep1764]

Ok, but how did you get the old one out?

[schutzen-jager]

Ok, but how did you get the old one out?

depressed the plunger on edge of work bench, held knurled part with padded jaw pliers, + pulled back on grip frame - tried the .0004 feeler gauge as suggested but not enough space between pin + barrel -

[sigep1764]

Got it. Just wanted to know in case I have a similar problem with the few I own!

[elmacgyver0]

Glad you got your little revolver fixed without sending it in.