A successful and reliable design, it remained standard issue in the British Army until 1994,[18] when it began to be replaced by the L85A1, a bullpup assault rifle.[21] The army quickly recognised the Patchett's significantly increased accuracy and reliability compared to the Sten and ordered 120 examples for trials.Towards the end of the Second World War, some of these trial samples are rumoured to have been used in combat by airborne troops during the battle of Arnhem[22] and by special forces at other locations in Northern Europe[23] where it was officially known as the Patchett Machine Carbine Mk 1.[24] For example, a Patchett submachine gun (serial numbered 078 and now held by the Imperial War Museum), was carried in action by Colonel Robert W.P.Sterling submachine guns with minor cosmetic alterations were used in the production of the Star Wars films as props for the E-11 blaster rifle used by Imperial Stormtroopers.[31][better source needed] The Sterling submachine gun is constructed entirely of steel and plastic and has a shoulder stock that folds underneath the weapon.This double-spring arrangement is intended to give improved reliability when firing 9mm ammunition types other than the British '2Z' standard, which typically have different propellant charges and bullet weights.[38] The Sterling employs a degree of what is known as Advanced Primer Ignition, in that the cartridge is fired while the bolt is still moving forward, a fraction of a second before the round is fully chambered.A bayonet of a similar design as that for the L1A1 Self-Loading Rifle was produced and issued in British Army service, but was rarely employed except for ceremonial duties.[37] A Chilean variant was made by FAMAE as the PAF submachine gun but was different externally as it had a shorter receiver lacking the barrel shroud.
An example of the Mk 5 suppressed variant. The wooden foregrip was unique to commercial and export models and did not appear on the British-issue L34A1 model.
Side view showing ejection port and offset cocking handle
Argentine POWs guarded by soldiers of
2 PARA
with Sterling submachine guns, June 1982