Angel Heart (2005)
Angel Heart is the anime adaptation of the manga series that ran in Japan from October 2005 to September 2006. The manga is an "alternate universe" spin-off of the popular manga City Hunter by the same author.
The following weapons were used in the anime Angel Heart:
A second generation Glock 17 can be seen in the pilot episode used by the Zhuque Corps trainers to kill of the trainees when they failed to assemble a M1911 in time during the grueling training process.
The task previously mentioned was to assemble a completely disassembled 1911A1 in one minute. The 1911A1 also appears to be Xiang-Ying/Glassheart's preferred weapon through the series.
Ryo Saeba's weapons of choice is a Colt Python with 4" barrel.
Smith & Wesson Model 586
The young trainees use a Smith & Wesson Model 586 to practice their marksmanship.
Hideo Mochiyama carries a Zastava M57, as identified by the lanyard loop on the magazine butt, during his first encounter with Xiang-Ying/Glassheart in the episode "Kaori has Returned".
Superintendent Nogami Saeko sidearm is a Walther PPK/S
Heckler & Koch MP5 Variant
Assassin's of the Zhuque Corps are seen with Heckler & Koch MP5A3s in addition to their PSG-1s. The young trainees are seen carrying them in their final exam as seen in a flashback in "True Friends".
A cut-down FN FAL can be seen in episode 8 being used by Xiang-Ying during a flashback.
Heckler & Koch PSG-1
Assassin's sent by the Zhuque Corps are armed with Heckler & Koch PSG-1 rifles. An interesting note is that they are shown as being able to fire in fully automatic, either that or the users are firing in semi-auto extremely quickly.
Steyr AUG A1
Saeba can be seen using a Steyr AUG A1 in the episode "My Beloved City".
M20A1/A1B1 "Super Bazooka"
Umibozu can be seen scaring some of the assassins by pulling out two Super Bazookas in episode 7 "My Beloved City" when they enter his café, Cat's Eye, another reference to City Hunter as well as referencing the authors earlier work "Cat's Eye"