WTB marushin M16a1/XM177E2 stop bolt

I need a stop bolt assembly for Marushin M16A1/XM177E2 that's located on left side of the receiver. The thumb piece snapped off whilst cocking dry fire. M16A1 was bought from Jay at modelguns but have been waiting over 6 months with no joy. Can you please help

I had that happen to me on a Marushin XM a few years ago (now sold on)
I thought, would a real one work?
Ordered one from someone in the UK but cannot remember the seller.
I recall that it fit fine, had to slightly file the bottom I think?
But it worked flawlessly.
AR15 bolt releases are easily bought here in the UK (not a restricted part) I use Brownells without any problems, but it would cost you around £6.00 shipping for a £8 catch.
If you can wait until December, I'm putting in an order and can add one to my order, if you're needing one quite quickly drop Gavin at Brownells UK a quick email to see if he has one in stock in the stores?
When you get and fit one it will be easy to see how to alter it.
Hope this helps

£8.10 at Brownells UK at present.

Thanks for the heads-up, did not realise these parts would fit with little persuasion. I did not build this model so rather nervous dissembling to change, hope its simple

Found the AR15 Bolt catch so I'll place an order. Thanks again and for the kind offer.

The Marushin M series assemble almost like the real ones, especially the FCG, bolt catch, pivot pins etc.
Lots of helpful videos on YouTube about assembly.
Just take your time and be careful, zinc alloy isn't as robust as Aluminium.
There are many on here, myself included to give advice and help.
Brough