The M1930 is the final configuration of Sjogren-pattern inertial operation rifle in 7mm Mauser as adopted after a lengthy development process that started with the M1920. These were developed from the Sjogren rifle submitted to the UK for testing in 1908 that did not get any traction although reports at the time indicated little by way of problems.
The M1930 has the bolt/upper receiver assembly smoothed off like the shotgun but with an added charging handle that can be installed to the right or left side. This allows for a more positive manipulation in field conditions. Ex factory, the charging handle is fitted to the left side of the upper receiver to be manipulated with the support hand. This is a departure from the manual of arms for the M1912 rifle where manipulations are done primarily with the firing hand. (Manual of arms is similar to FAL)
The M1930 has a separate stock and fore end like the shotgun. It allows us to use much simpler and cheaper furniture. The 2-stage trigger assembly drops out en bloc for maintenance.
Our evaluation of foreign rifles post war indicated that the most effective sighting arrangement was the Enfield P14 pattern rear aperture. Unfortunately the general layout of the Sjogren precludes this so the M1930 adopts a compromise , a large ring aperture tangent sight mounted to the trunnion. A semi-circular sight hood (a la AK) helps index front and rear sights and is used for rapid and close engagements. A finer sight blade permits accurate shooting at distance. In field trials, this sighting arrangement proved substantially superior to the U notch and barleycorn of the M1912 and will be retrofitted to the M1912/30 refurbishments of these bolt actions. (primary change is detachable box magazine)
M1930s can be fitted with an optic rail on the right hand side of the rifle receiver. Our ejectors are designed to fling brass to the right and away from the optic. The side mount is however quite expensive and this is why we are retaining M1912/30s as sharpshooter rifles. Their mounts are much smaller and cheaper.
We are just going to buy the first lot of ZB LMGs from the Czechs with modifications. Mainly has to do with taking our pattern of 7mm box magazines and a sighting arrangement similar to the M1930 rifles. This is to reduce the amount of training needed to make troops proficient with the LMG.
Edited by Simon Tan, 01 August 2019 - 2354 PM.