What's Out There For .177 Non Blowback Semi Automatic Suppressorable Pistols

I am not an expert but my understanding is there are only two systems that operate a semiautomatic firearm.. That is gas and blowback. I guess for airguns you could add electric as a third system as used on the old Evanix select fire guns. All of the pellet and BB semiautomatic pistols that I have seen use blowback. I have the Hatsan Sortie and it works very well in semiautomatic using blowback providing it s tuned properly so that there is enough blowback force to completely compress the hammer spring and the reloading spring..
 
THIS but needs to be sent to a professional for custom made and fitted LDC... Nothing with wings is safe out to 55-65 yards. 

20200920_154537.1601586338.jpg