If you're considering buying a AA89 mp5 TYPE pistol from Atlantic Arms I could offer my personal experience with one....
I purchased a AA89 mp5 9mm directly from Atlantic Arms and I can honestly say it is a fantastic weapon....I've ran every brand of 9mm ammo down the pipe and have NEVER had a failure....this is after a few thousand rounds since approximately March of his year (2014) ...I can verify that all the internal parts are all high quality as is the platform itself....I can not see where any short cut was taken on the pistol by using below par parts...on the contrary , after comparing my AA89 with a couple of friends "other" brand mp5 type pistols, I came away very pleased with what I have....
I'm a retired Texas LEO and have shot a ton of different weapons ...including authentic HK mp5's and my AA89 performs just as well in my opinion....
And another thing to consider...CUSTOMER SERVICE....if you have any questions on a weapon you may purchase from Atlantic Arms they are always there to take the call and assist....top notch service!
I want one of there newly listed reverse stretch Atlantic Arms mp5k pistols , and was getting ready to get one but car trouble put a damper on that plan for awhile unfortunately.....I'll get one , it's just gonna take a bit longer...
But all the above aside, the AA89 is a quality weapon thru and thru.....it is a fine choice...
Good luck, God Bless everyone and Merry Christmas to one and all!
Russell / jackpot ....in Texas