I only own four: the Mosin-Nagant, AK-47, AR-15 and Colt .45ACP.
Clearly I am deficient.
But I do own some manly firearms not on the list:
Model 98 Mauser
Winchester model 1873
Remington Model 700 in .308
Springfield XD in .40 (still starts with a 4)
Maybe that makes up for it a little?