In "Down to the Wire" (S6E20), a Beretta 92FS also appears in the hands of Private Investigator Kurt Rossi (Tom Sizemore) being used by Kurt to kill a woman in a parking garage.
Non-Gun Beretta 92F
In "Cyber-Lebrity" (S06E02), Damon Argento (Justin Baldoni) fires a Non-Gun Beretta 92F at Horatio before realizing that the pistol contained blanks.
In "Dangerous Son" (S06E01), Detective Jake Berkeley (Johnny Whitworth) is seen with his Glock 17. An MDPD SWAT officer is also seen with a Glock 17 fitted with a tactical light.
In "Permanent Vacation" (S06E08), Vasco Torres (Jesse Garcia) draws a Glock 17 from his waistband when Eric is attempting to arrest him.
Glock 17 (Full Auto)
In "Going Ballistic" (S6E21), a fraudulent ammo manufacturer named Brad Gower (Steve Braun) uses one converted to full-auto fire with a 33-round high-capacity magazine (likely impersonating a Glock 18, evidenced by the lack of a selector switch) to shoot his victim Manny Ortega (Jay Tavare) when he thought he had survived a fall from a high-rise window, killing a luckless Medical Examiner that was caught in the line of fire.
Glock 24
In "Dangerous Son" (S06E01), Rick Bates (David Gallagher) uses a Glock 24 (it is even identified as such by Calleigh).
Glock 26
In Season 6, Natalia Boa Vista (Eva La Rue) makes the transition to a full CSI and thus starts to carry a Glock 26. In the early episodes of the season she is seen training with it and other weapons.
Lt. Horatio Caine (David Caruso) continues to use his SIG-Sauer P229 during season 7.
In "Inside Out" (S06E03), Natalia Boa Vista (Eva La Rue) is seen using a SIG-Sauer P229 to train at the firing range.
Unknown Pistol
In "Permanent Vacation" (S06E08), Denise Partney (Leslie Hope) kills Vasco, her sons killer, using an unknown pistol.
Smith & Wesson 459
In "Stand Your Ground" (S06E09), a carjack aims a pistol at Calleigh when he attempts to carjack her. The pistol is later identified by Calleigh as a "Smith & Wesson 459 with a wood grain grip and adjustable rear sight."
Browning Hi-Power
At the end of "Ambush" (S06E15), Chief Braga gives Horatio (David Caruso) a Browning Hi-Power with which to defend himself against the Mala Noche. In the following episode, "All In" (S06E16), Horatio is seen using the Browning to take out multiple members of the Mala Noche.
Revolvers
Unknown Revolver 1
In "Cyber-Lebrity" (S06E02), an unknown revolver is used as a starter pistol at a swim meet.
Unknown Revolver 2
In "Deep Freeze" (S06E05), Natalia Boa Vista (Eva La Rue) is seen with an unknown revolver when practicing at the range.
Unknown Revolver 3
In "Permanent Vacation" (S06E08), Vasco Torres (Jesse Garcia) uses an unknown revolver to kill a kid in an elevator.
Colt Detective Special
In "You May Now Kill the Bride" (S06E14), Greg Tanner's bodyguard is found to be carrying an Colt Detective Special revolver which Calleigh is later seen firing it. The bodyguard is also seen firing the revolver in the nightclub to stop the patrons from grabbing money being thrown to the dancers.
Submachine Guns
Cobray M11/9
In "Chain Reaction" (S06E07), a pair of models are seen with Cobray M11/9s that they use to get the attention of the audience as part of the show.
Shotguns
Unknown Shotgun 1
In "Deep Freeze" (S06E05), Natalia Boa Vista (Eva La Rue) is seen with an unknown shotgun when training at the firing range.
Unknown Shotgun 2
In "All In" (S06E16), one of the Mala Noche members that confronts Horatio holds an unknown shotgun.
Assault Rifles
Unknown ARs
In "Dangerous Son" (S06E01), MDPD SWAT officers are seen with multiple M4 style rifles. NOTE: These rifles may not be the same variant.
Unknown AK
In "All In" (S06E16), a member of the Mala Noche hit team is seen with an unknown AK-47 variant.
M4A1 Carbine
Miami Dade SWAT officers are armed with M4A1's when a man is tricked into engaging SWAT with a knife in "Down to the Wire" (S6E20).
Sniper Rifles
M39 Enhanced Marksman Rifle
In "Guerillas in the Mist" (S06E11), a sniper fires at one of the gun runners with an M39 Enhanced Marksman Rifle.