The officer on the other side of the officer with the Glock is carrying a SIG-Sauer P226, which was recently added to NYPD's approved carry list. The exact specifications are DAO, 9mm, but the one in this film seems to have a hammer, so it is not DAO. An officer with a shield (or body bunker as NYPD ESU refers to them) can also be seen carrying one when they raid the bank.
Several NYPD ESU officers are armed with Heckler & Koch MP5A3 submachine guns with Surefire 628 dedicated fore-end flashlights.
Rifles
AK-47
The other three bank robbers, Steve Damerjian (Carlos Andres Gomez), Stevie (Kim Director), and Steve-O (James Ransone) carry AK-47 rifles. During an interview with Det. Frazier, Steve-O (posing as one of the bank hostages) has a discussion with Frazier about how "everyone who's seen a halfway decent action movie" knows what an AK-47 looks like after identifying the gun as such. When Frazier enters the bank after the robbery, another detective points out to him that the AKs are "toy guns". (Although identified as toys, the bank robbers can be seen using firing AK models when the detectives consider the consequences of raiding the bank. Since these sequences don't show events that actually happened, it is not a mistake that the guns would be "toys".)
M4A1 Carbine
Many NYPD ESU officers are armed with M4A1 Carbines.
Remington 700PSS
An ESU sniper is seen holding a Remington 700PSS fitted with a Harris bipod.
Other
Penn Arms L-6 Rotary Launcher
NYPD ESU officers fire less-lethal rounds from Penn Arms L6 Rotary 37mm launchers at the hostages when they emerge from the bank.