It looks like an ARM model that’s missing the bipod-wire cutter-bottle opener.
The scratched star on the grip doesn’t prove it was IDF. An IDF gun will have the info engraved on the left side in Hebrew and 5.56 in Hindu-Arabic numerals. There will also be a prominent IDF crest. I can’t tell from your photos if they are present.
IMI came up with some of the changes from AK and took a lot from
Finnish
Valmet Rk 62.
Used to see the exported version in Central and
South America
. I was told they were very reliable in the jungle conditions and have very little recoil.
BTW, the barrel threads into the receiver making it a bit more difficult to set the headspace than the AKM’s pressed and pinned method.