The following weapons were used in the film A Bittersweet Life:
Stechkin APS
Sun-Woo (Byung-hun Lee) uses a Stechkin APS pistol for much of the latter half of the film, stealing it from a weapons dealer who claims it is the "finest gun manufactured in Russia". Although the Stechkin is select fire, Sun-Woo only fires it in semi-automatic.
Moo-Sung is armed with a Smith & Wesson Centennial revolver during the finale. Another of Baek's thugs is seen loading one by spinning the cylinder and flicking his wrist to the right in order to push the cylinder back into place.
Sun-Woo's friend Min-gi is armed with what looks like a Taurus Model 85 at the beginning of the film. As it is not properly in focus, it could also be a Smith & Wesson Model 36 In the slightly altered Director's Cut, there is an extra scene not present in the theatrical version before Sun-Woo and Min-gi confront Baek's men where Min-gi is seen checking the revolver.
Error creating thumbnail: File missingSmith & Wesson Model 629 Classic with wood grips - .44 MagnumError creating thumbnail: File missingThe brother retrieves a S&W 629 Classic, on the far left, from an arms cache. Two other revolvers are present in this shot, one might be the same prop used on several film posters featuring Sun-Woo. However, they are somewhat out of focus, making them difficult to properly identify.Error creating thumbnail: File missingThe brother fires the Smith & Wesson Model 629 Classic.
Steyr SPP
The Steyr SPP, mounted with a front grip and converted to automatic fire possibly to give the appearance of a Steyr TMP, is used by the arms dealer Myung-Gu before Sun-Woo kills him, taking the gun for himself and using it for the rest of the film. Another slightly modified Steyr SPP is used by one of Baek's thugs in the finale, but he is killed by the gun dealer's brother before he can ever fire it.
Two thugs working for the mobster Mr. Baek use Norinco Type 56-1 rifles during the finale, firing them wildly at Sun-Woo before they are killed.
Error creating thumbnail: File missingNorinco Type 56 (Imported into the U.S. as the Norinco AKS-47 or AKS-47 Sporter) - 7.62x39mm. Rather than having the underfolder pig sticker Bayonet assembly, this has the standard Bayonet lug underneath the gas block as the AKM and later variants.Error creating thumbnail: File missingA thug fires a Type 56-1. Note the hooded sight that distinguishes Norinco Type 56 from other Kalashnikov variants.Error creating thumbnail: File missingAnother thug fires a Norinco Type 56-1.Error creating thumbnail: File missingThe thug realises he has run out of ammunition and reloads the empty magazine into his Norinco Type 56-1.