Original Swedish WWII M21 High Top Steel Helmet Category_Night Sights Both began to be phased

Both began to be phased out in the early 1950s as their role was taken over by surface-to-air missiles like the MIM-3 Nike Ajax

It functions nicely

and the left plate has a long finger that operates the feed system

and at the lower part are the lightning bolts

It has an OD green retention strap

Original Swedish WWII M21 High Top Steel Helmet Category_Night Sights Both began to be phasedOriginal Item: Very Few available. The Swedish military M21 18 helmet was introduced in 1921 as the second version of the M21 helmet. The first version, the M21 16 had a wider brim. Swedish M21 (18), also known as the "high top" was the second type having a narrower brim and less of a crest, these helmets were developed in 1918 but did not come into production until 1922 23, made of quality materials at the Eskilstuna Factories they remained in