The guns seen in this movie are:
In many scenes, the flat 'slab side' upper receiver of the original M16 (AR-15/SP1) rifle is seen. Some of them appear to be genuine civilian AR-15/SP1s and aren't seen fired full-auto. Instead, M16A1s seem to be used to depict full-auto fire. That is, until the Grenada sequence, when the Recon platoon's weapons are both M16A1s and M16 rifles, possibly AR-15/SP1's converted to fire full-auto, perhaps to to a lack of enough M16A1 rifles for those scenes.
Error creating thumbnail: File missing M16 (AR-15/SP1) 5.56x45mm
Error creating thumbnail: File missing Recon Marines in training fire their M16s down range, although they are likely AR-15/SP1s, as they aren't seen firing full-auto until in Grenada, when more full-auto guns were required. One marine fires his weapon full-auto during the rifle training, but it is clearly an M16A1.
Error creating thumbnail: File missing Gunnery Sgt. Highway (Clint Eastwood ) shows his recruit his AR-15/SP1 is not "Fuckin' fucked up."
What's the language limits of this site? Just to be sure.
Error creating thumbnail: File missing Pvt. "Stitch" Jones (Mario Van Peebles ) with his AR-15/SP1 while Highway hassles him over pawning his kevlar helmet.
Error creating thumbnail: File missing Highway with his AR-15/SP1 in Grenada. This one appears to be converted to full-auto or it could be an actual M16 fitted with an A1 birdcage muzzle break, but it's a bit less likely.
Error creating thumbnail: File missing Lt. Ring with the AR-15/SP1 in Grenada, his also featuring full-auto fire, making it a possible M16 with a birdcage muzzle break as well.
Seen in the hands of several Recon Marines, used when a fully-automatic weapon is required early in the film, until Grenada when possibly all the weapons were converted to full-auto fire, perhaps do to a lack of M16A1s.
File:M16A1 brimob.jpg M16A1 5.56mm
Error creating thumbnail: File missing Highway pulls a Marine's M16A1 out of his face when he complains about his weapon malfunctioning, nearly getting his head blown off. The weapon empties a full magazine, almost killing the other men on the firing range.
Error creating thumbnail: File missing A Marine in Grenada with his M16A1.
Error creating thumbnail: File missing Lance Corporal Fragatti, nicknamed "Fagetti", empties a mag from his M16A1 into a skeleton model from a classroom in Grenada.
Error creating thumbnail: File missing Cpl. "Stitch" Jones, now armed with an M16A1 in Grenada.
Error creating thumbnail: File missing Cpl. Ring is seen using an M16A1 after taking the hill, a possible continuity error, since he was using an AR-15/SP1 rifle earlier.
One of the Marines has an AR-15/SP1 (or possible M16) fitted with an underslung M203 40mm grenade launcher.
37mm Colt flare launchers
Error creating thumbnail: File missing M203 grenade launcher 40mm
Error creating thumbnail: File missing A Recon Marine fires his M203 launcher at Cubans in Grenada.
Error creating thumbnail: File missing The same Marine orders his men up armed with his M16(AR-15/SP1)/M203.
Error creating thumbnail: File missing The Marine fires his M16(AR-15/SP1) with underslung M203.
Used by Recon Marine Private Johansson "The Swede", Used inside an armored vehicle by the Cubans, and seen on the helicopter that picks up the Recon men after the operation is complete.
Error creating thumbnail: File missing M60E1 machine gun 7.62x51mm NATO
Error creating thumbnail: File missing Johansson "The Swede" gives supporting fire with his M60E1.
Error creating thumbnail: File missing "The Swede" walks with the rest of his men to the hill, somehow comfortably holding the 23lb M60E1 with one hand. Perhaps it was lightened for the film or perhaps he really is strong enough to hold it like that.
Error creating thumbnail: File missing "The Swede" climbs the hill with his M60E1.
Error creating thumbnail: File missing A Cuban soldier fires an M60E1 out of the armored vehicle.
Error creating thumbnail: File missing The Helo that picks up the Recon Marines is fitted with a door mounted M60E1.
Gunnery Sgt. Tom Highway (Clint Eastwood ) uses an AKM to teach his recruits in basic training, by shooting at them so they know the distinct sound of an AK-47 being fired at them. Several Cuban soldiers use them as well, just as Highway said they would.
File:IMG 7046.JPG AKM, Stamped Steel Receiver w/ slant muzzle brake 7.62x39mm
Error creating thumbnail: File missing "This is the AK-47 assault rifle, the prefered weapon of your enemy, and it makes a distinct sound when fired at you, so remember it.".
Error creating thumbnail: File missing Highway fires his AKM at the recruits as they crawl through barbed wire trenches. Clint clearly knows how to fire this rifle, to add.
Error creating thumbnail: File missing An AKM lays next to a dead Cuban soldier.
Error creating thumbnail: File missing Cuban soldiers fire their AKM rifles at the Recon Marines using the armorer vehicle as cover.