How to disassemble the G3 rifle for cleaning in 8 easy steps.

How to reassemble the G3 rifle after cleaning in 11 easy steps.

Detail of locking piece ref. step 2 in assembly manual.

Detail of bolt carrier ref. step 2 in assembly manual.

Detail of bolt carrier ref. steps 3 and 4 in assembly manual.

Detail of bolt carrier ref. step 5 in assembly manual.

Done!

The Swedish AK 4 tool depicted above can come in handy when disassembly is necessary. It features a screwdriver to remove the pistol grip (1.), a flash hider key (3.), an extractor spring removal tool (4.) and a key to insert in the bolt head to help rotating  it -see image below (5.).

#2. I do not know what is for, so if anybody knows, please e-mail me.

Insert in the end of the AK 4 tool marked "5." in the slot indicated by the arrow to aid in rotating the bolt head, ref. step 5 in the assembly manual.

Still, I find the Norwegian "bottle opener" extractor spring removal tool a lot easier to use than the Swedish AK 4 tool for removing the extractor spring.