#mp28

變形金剛角色除了大哥之外，最喜歡的就是洛迪文了，雖然他就是個被拱上台的富二代，但他的造型跟車形設計放到現在還是在線的，只能說設計師有遠見啊！

In the mid 1940s, engineer George Patchett set out to design a submachine gun and magazine that would improve on the STEN gun's shortcomings. Below are diagrams showing the make up of the two guns’ magazines.

First we have the 32 round, double stack, single feed STEN magazine. The STEN’s magazine was derived directly from that of the Lanchester Machine Carbine, which was itself a clone of the MP28, II′s magazine designed by Hugo Schmeisser. While the magazine was effective, with a tight control on the rounds fed into the action, it was difficult to load and prone to jamming in adverse conditions.

STEN Magazine

While George Patchett’s experimental machine carbine had initially been designed to feed from the same MP28/Lanchester/STEN magazines by 1945 he had decided that in order to improve reliability a new magazine was needed.

Sterling Magazine (L1A2)

Patchett’s magazine evolved over several years but its basic features included a a unique follower made up of a pair of rollers, a circular spring, a curved body - to improve the feeding of 9x19mm cartridges and it was of course double stack, double feed - which enabled it to be loaded easier. It held 34 rounds, on paper at least, and was robustly made from sheet steel with reinforcing ribs. 

The design seen above is the British Army’s L1A2 magazine - which was a slight simplification of the magazine’s produced by the Sterling Armament Company. The L1A2 magazine used two pieces of sheet metal, rather than four, however, it retained Patchett’s roller follower which. The rollers, in theory at least, could provide a stable feed and prevent jams by rolling dirt and grit out of the day.

Sterling Magazine (Patchett’s Sterling-produced original design)

Note the subtly different shape of the magazine, with the wall of the magazine making up the insertion guide and an extended lip at the sides to help prevent drop damage.