MAGAL was a limited use replacement weapon for the M1 Carbine that was issued to semi-civilian personnel (teachers) and I believe some police.
They are extremely rare. Blackthorne had scores of the plastic shells for sale years ago, probably the entire lot that IMI made.
As far as I know they are no longer around Israel. .30 Carbine is an outdated cartridge and the police get Micro Galils now or MTAR.
I don't know that it was to replace the M1 carbine -- it was to supplement and use up all the WW2 and Korean War-era .30 carbine ammo and mags the US and Europe gave them after France implemented an arms embargo in the late 1960s and they feared other nations might follow... There were also issues of Israel having economic recessions/depressions throughout much of this time as well, meaning they had to pinch pennies.
The Galil was originally produced domestically for similar reasons -- to ensure available small arms before US under Reagan began granting Israel military "grants" instead of previous "loans" and to help stimulate the domestic economy, as well as an export item for trade.
Reagan's 1980s grants is when floodgates opened and US-produced small arms (M16/M4), provided for free by the US taxpayer, began flooding into Israel along with many other forms of military aid. And when the Galil was largely dumped and remaining Israeli vintage small arms/ammo were mothballed or sold.
Importantly, the 5.56 Galil was a frontline infantry weapon, while Magal was a support troops and police weapon due to slightly less effective caliber; however, the Magal weighed as much if not less than the Uzi while having significantly more capability... Increase in terrorism probably necessitated this more precise and powerful weapon system over previous handguns and SMGs. 7.62 Galil was more of a DMR role, while Galatz obviously a precision weapon.
