During the shootout in the garage, the rear view mirror of the car in which Tanner is hiding, gets shot off twice.
The car in which the "sniper" drove away in was a third generation Chevy Caprice. These were made from 1977-1990. In the debriefing, the Colonel states that the glass left behind was identified as having come from a GM vehicle manufactured between 1996-2002. In fact the next generation Caprice was made from 1991-1996. It was the big bubble style that was used by so many police departments before the Ford Crown Victoria became the "crown jewel" of police departments, after GM did away with the line-up. The Caprice line-up was revived in 1999, but for a small car sold in the Middle East. Also the car was identified as a Chevy Impala, which were not even made between '96 and '00
The husband (Abe Miller) mentions a bullet pulled from Tanner's body by his wife Martha is a "Teflon coated bullet, made to pierce body armor". Such bullets were never made to, intended to nor able to defeat body armor. Teflon was and is coated on bullets to reduce barrel wear and provide more slip for reliable feeding from the magazine. Its not a surprising error from NBC as their news arm has historically repeated this misinformation in pursuit of more gun control laws.
Bullets made to defeat body armor use a combination of 3 things to achieve that - material (steel), shape (pointed) and velocity. Steel penetrators are small cores in an otherwise regular jacketed bullet that aim to slip through the weave of Kevlar. IE M855 "green tip" ammo. However, that isn't a necessity as the normal jacketed lead bullet of the same caliber 5.56 is pointed like most rifle bullets and with its 3,000 fps velocity easily penetrates most soft body armor not backed by steel plates - and in tests has proven to penetrate thin armored steel better then the "penetrator" round does simply because its a faster bullet. Energy = Mass X Velocity^2 Velocity counts a lot more than mass with its squared value. True armor piercing rounds are solid steel, not very common (haven't been made domestically in @20 years) and very expensive if they can be found. That said, they get thru armor but pass right thru the target, they don't expand so they actually are considerably less effective than lead bullets that deform and damage the target more severely.
No legal handgun rounds are "body armor piercing", such bullets would be pointed whereas all handgun rounds available are blunt, rounded or hollow points. Handgun rounds aren't using steel at all (quite likely illegal) and none have the velocity required to defeat level IIIA soft armor. The movie Lethal Weapon at least had this somewhat right, the body armor piercing bullets they found were pointed, and steel (since they were making holes in the bucket of a loader, which is made of virtual armor plate itself). And notably illegal.
Bullets made to defeat body armor use a combination of 3 things to achieve that - material (steel), shape (pointed) and velocity. Steel penetrators are small cores in an otherwise regular jacketed bullet that aim to slip through the weave of Kevlar. IE M855 "green tip" ammo. However, that isn't a necessity as the normal jacketed lead bullet of the same caliber 5.56 is pointed like most rifle bullets and with its 3,000 fps velocity easily penetrates most soft body armor not backed by steel plates - and in tests has proven to penetrate thin armored steel better then the "penetrator" round does simply because its a faster bullet. Energy = Mass X Velocity^2 Velocity counts a lot more than mass with its squared value. True armor piercing rounds are solid steel, not very common (haven't been made domestically in @20 years) and very expensive if they can be found. That said, they get thru armor but pass right thru the target, they don't expand so they actually are considerably less effective than lead bullets that deform and damage the target more severely.
No legal handgun rounds are "body armor piercing", such bullets would be pointed whereas all handgun rounds available are blunt, rounded or hollow points. Handgun rounds aren't using steel at all (quite likely illegal) and none have the velocity required to defeat level IIIA soft armor. The movie Lethal Weapon at least had this somewhat right, the body armor piercing bullets they found were pointed, and steel (since they were making holes in the bucket of a loader, which is made of virtual armor plate itself). And notably illegal.