![sten mk ii s sten mk ii s](https://www.nvidia.com/content/dam/en-zz/Solutions/SHIELD/overview/phase2/icon-4k-tv@2x.png)
Second production model silencing units are found on guns with Serial numbers with TF prefix and a one and a half inch diameter silencing unit with asbestos string as insulation covered by a web handguard. As mentioned above, these silencing units are possibly the shortened Kulikowski silencing units mentioned in the reports. This model appears to have only been used by SOE agents. Most of the observed silencing units with night sights were in the 1-350 serial number range with one exception around serial number 3400. Guns with night sights had the silencing unit permanently attached to the submachine gun. A number of these weapons were also equipped with night sights. It is not possible to say if as many as 3,400 were made but the observed numbers from 1-1500 have been so many that it’s quite possible that this range was filled. The silencing units are serial numbered and observations have been made in a range from 1-3400. A number of silencing units have been observed with light bullet strikes at the muzzle, possibly caused by firing in recent times after the rubber had hardened thus diverting the bullets. The effect of the silencing unit decreases as the rubber disc wears out. A thick rubber disc is placed at the muzzle of the silencing unit to stop the powder gases from escaping. The silencer has a number of metal discs in front of the 7.2 inch barrel, which is ventilated with 6 bleed holes. These Sten guns are typically marked STFN instead of STEN, indicating a worn die used for marking the guns. All the weapons observed have had the letter “S” stamped on the bottom of the magazine housing. The insulation is integrated in the silencer between the inner and outer tubes of the silencer. The silencing units are two inches in diameter and are not equipped with any web handguards. manufactured guns with B prefix in serial number series B 341000, B 360000 and B 363000. "Three main types of Special Sten/Sten Mk.II(S) have been observed in quantity as follows:įirst production model silencing units are found on B.S.A. From an archived Small Arms Review article: