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mrerick · 01-19-2016, 10:12 AM

To be clear, the "hump" is not the addition of metal at the rear of the receiver.

The presence of the "hump" is actually the result of an additional milling procedure which removed metal below the area of the rear toggle hinge.

After the early 1937 engineering change, new receivers all had the "hump". It is, of course, possible that older receivers were used out of manufacturing sequence...

I wonder why Mauser stopped milling away the area from 1935 until 1937? It was certainly a reduction of labor and time to manufacture...

Marc

01-19-2016, 10:12 AM	#17
mrerick Super Moderator - Patron LugerForum Life Patron Join Date: Dec 2009 Location: Eastern North Carolina, USA Posts: 3,925 Thanks: 1,377 Thanked 3,139 Times in 1,520 Posts	To be clear, the "hump" is not the addition of metal at the rear of the receiver. The presence of the "hump" is actually the result of an additional milling procedure which removed metal below the area of the rear toggle hinge. After the early 1937 engineering change, new receivers all had the "hump". It is, of course, possible that older receivers were used out of manufacturing sequence... I wonder why Mauser stopped milling away the area from 1935 until 1937? It was certainly a reduction of labor and time to manufacture... Marc __________________ Igitur si vis pacem, para bellum - - Therefore if you want peace, prepare for war.