Happy New Year and welcome! I'm fairly new here myself. I love my 43 too, an Austrian model that came with just the normal plastic sights (remedying that soon with some CAPs!). When I bought it, I didn't think the relatively low capacity would bug me much but it sorta does, so I bought a Ghost Inc. Mini M.E.D. +2 extension for my other mag and I'm loving it. It works great and the owner absolutely stands behind his product: its warranted unconditionally for life, even if you break it due to abuse! The owner said so himself in an email. Long story short I thought the extender was cracked; it was just a molding mark but he STILL offered to send me a new one if I would purposefully break my old one, JUST so I would see how tough it was!! No I do not work for Ghost, I'm just a very satisfied customer. The guy earned the plug for sure.
Anyway, I also got a PT job at Big 5 sporting goods just to pay for my toys (I'm a healthcare worker by career, a respiratory therapist), lol, and man, I have seriously been taking advantage of my employee discount! I'll post a pic of what I got for the G43 so far. No malfunctions for my first 150 rounds and I don't expect any to come. After another check or two I'm gonna buy a 19 or maybe even a G40 MOS to keep her company.
Enjoy the forums and your new gun! You'll love it.