You mentioned the mainspring housing.
I bought an S&A magwell. I tried to install in on my Norinco just to see how it looks, but the fit was too tight that I scratched the magwell.
I'm not one to experiment with a 5K-peso part, so I'll leave it to a gunsmith. Plus it (the well part) needs to be blended with the frame by a gunsmith anyway.
You might want to visit this gunsmith's (Blindhogg)site. It may give you an idea which parts you will be able to fit yourself.
I bought an S&A magwell. I tried to install in on my Norinco just to see how it looks, but the fit was too tight that I scratched the magwell.
I'm not one to experiment with a 5K-peso part, so I'll leave it to a gunsmith. Plus it (the well part) needs to be blended with the frame by a gunsmith anyway.
You might want to visit this gunsmith's (Blindhogg)site. It may give you an idea which parts you will be able to fit yourself.