The Egyptian 8mm Hakim is one of my favorite rifles she's big and a little not so purdy at first but she sure draws attention with the muzzle blast at the range. I had 6 of them but i have 4 left now all in tip top working order. You must disassemble the gas valve and clean & lube the threads with an anti-seize so it remains free. You have to adjust the gas valve to the ammo your using too or accidents can happen. If the gas valve is all the way open at the 6 oclock position pointing at the shooter and with a hotter ammo it can pull out/extract the fired case with the breech pressure still in the barrel. Thus hitting the shooter in the face with hot gases like an out of battery firing. My hakims run around 1 or 2 clicks open from fully closed on the gas valve it seems to be the norm but your gun and ammo may vary.
I use only moly anit-seize and moly to lube all my guns. It elimates all wear, reduces friction and prevents galling too. It stays wet and were you put it and doesn't attract dirt too. The gun is ready to rock n roll even after long term storage. The gun will cycle faster and smoother too. I put it on the trigger sears too it lessens the trigger pull by up to 50% right away and more as it works into the pores of the metal. Moly works into the pores of the metal so there is no metal to metal contact its moly against moly thus no wear. I use it in pistols, revolvers, bolt action and semi-auto rifles.