i have the same red dot that i just replaced. if you look at both pics, your red dot is the same way which is correct. the mount itself does not really matter. for placement, most people go towards the front of the receiver without mounting to the handguard which can flex.
i actually used nail polish cause it was cheap and easy to clean up, just use acetone free remover so you dont damage the finish.
btw not all mapgul pts parts are made in china, just the replica. the pts line is an actual magpul line for airsoft that is high quality. its the replicas that are chinese made.
once you have decent optics and a comfortable grip, the FCG is your next place to upgrade as mentioned. i just did the jp yellow springs for a slightly lighter pull and polished the mating surfaces slightly to make it smoother.
btw welcome and enjoy!
i actually used nail polish cause it was cheap and easy to clean up, just use acetone free remover so you dont damage the finish.
btw not all mapgul pts parts are made in china, just the replica. the pts line is an actual magpul line for airsoft that is high quality. its the replicas that are chinese made.
once you have decent optics and a comfortable grip, the FCG is your next place to upgrade as mentioned. i just did the jp yellow springs for a slightly lighter pull and polished the mating surfaces slightly to make it smoother.
btw welcome and enjoy!