The Final Option (Original British Title: Who Dares Wins) is a 1982 action film starring Lewis Collins, Judy Davis, and Edward Woodward, with Richard Widmark and was directed by Ian Sharp (The Professionals). Producer Euan Lloyd (The Wild Geese, Shalako) was so inspired by the storming of the Iranian embassy by Britain's Special Air Service in 1980 (an event Lloyd watched live in person), he immediately got the ball rolling on a film about the SAS. Filming was done with the full cooperation of the SAS and the British Army. Lewis Collins, who stars as Captain Skellen, had actually passed SAS selection at one point, but was ultimately rejected due to his fame. This film also featured one of the earliest appearances of the Heckler & Koch MP5.
The following guns were used in the film The Final Option (1982):
SAS troopers are armed with Heckler & Koch MP5A3 submachine guns. All of the MP5's seen are fitted with "slimline" handguards and the original straight "waffle" magazines.
SAS troopers and Captains Hagen (Bob Sherman) and Freund (Albert Fortell) carry L1A1 SLR rifles during their field exercise in Wales.
MAC-10
Most of the terrorists are armed with MAC-10 submachine guns. Some of them are fitted with suppressors. In the dialogue, they are described as being chambered in "9mm."
An SAS trooper uses a Remington 870 shotgun to breach a door.
L7 Machine Gun
An L7 Machine Gun machine gun is seen mounted on a Land Rover at the SAS training facility.
XM177
An SAS trooper uses an XM177 during a training exercise.
Federal Gas Riot Gun
Two SAS troopers suspended from a helicopter fire grenades from a Federal Gas Riot Gun.
Schermuly Training Grenade
The SAS troopers have Schermuly Training Grenades on their webbing. The body of the grenade is plastic with an open bottom with the interior filled with a paper wrapped pyrotechnic charge. Once the lever was released there was a two second delay before this charge was propelled out the base of the grenade and exploded about half a second later. Although, as the name implies, it was originally intended as a training grenade it was found it could also be used as a stun grenade so its appearance on an SAS troopers webbing, particularly in the early 80s, is legitimate.