This was a hard piece to write, because guns by definition are manly, except for Berettas, gold-plated TEC9s, .25 caliber pistols or anything made by the French. To simplify things, I have limited it to modern cartridge firearms a man might, can, and should collect and shoot. There are certainly other manly weapons, and you may have a different list. As long as the list contains nothing French, gold-plated, .25 or with pearl grips (which Patton correctly observed are the mark of a New Orleans pimp), it is a good list.
#9: Mosin-Nagant M44
Speaking of guns without safeties, here's the Mosin-Nagant M44 Carbine from Russia. The Mosin was used by the Russians against the Finns, the Finns against the Russians, the Estonians against the Russians, the Russians against the Russians, and the Russians against the Germans. It does, in fact, have a safety, but it's quite hard to engage. But this is not a complaint one would ever voice in the Red Army. Your officer would reply, "Safety? Safety? Is gun! Meant to kill! No warrior should know he has safety on gun, because he should be killing enemies of homeland! Safety make loud click to aid enemy in locating warriors! No safety!" while pounding his fist on the table.
And the Mosin can kill enemies of homeland. The muzzle blast will vaporize green growth within a few feet of the muzzle, and even if you miss, the enemy will be reduced to shouting "WHAT?" to communicate. You'll need a recoil pad or shooting jacket. Ordinarily, this might be considered unmanly, but this rifle has a short stock for using while wearing several layers of wool for a Russian winter. It is acceptable to wear padding to fire a Mosin.
Of course, there are also M38, 91/30 and other variations of Mosin-Nagant and all are cool. All, also (except the M38), come with a bayonet. Russian doctrine held that the bayonet was mounted except while traveling in a vehicle, because the Russians understood that an empty rifle could still be a pointy stick—a Viking spear. The Russians loved to spear Turks. So, coincidentally, did the Vikings. This rifle sounds better all the time, doesn't it? The Finns used the Mosin as a sniper rifle during the Winter War, and their greatest Sniper was Simo Häyhä, who had 500 confirmed kills in 100 days. This is a man the Finns describe as "modest" and "self-effacing." It's a good thing the Russians didn't run into a Finn who was proud and arrogant. They'd have been wiped out.
It fires a 7.62X54R (for "Rimmed") cartridge, about as powerful as .30-06, and holds the distinction of being in service from 1891 to the present, longer than any other military cartridge. It is still used in Dragunovs, PKMs and other Russian weapons. It's cheap in quantity. So are the rifles, because they were built for (all variations) over 70 years, by Russia, Finland, Poland, Romania, even the US. As I write this, arsenal-new M44s are $55 to $200. At that price, you should have several, so any guests you have during the Collapse can be outfitted as they receive Enlightenment. Then they can rape, kill, sack and loot with the rest of the men who secure a new Dark Ages to hasten the new renaissance. It will be a manly duty.
Read the whole list here.