If it says "SIG" on the receiver, I would buy it sight unseen.
And again, if you avoid the so-called "light magnum," you'll be fine.
Buy that SIG, and ENJOY!
And I looked, and behold a pale horse: and his name that sat on him was Death, and Hell followed with him. And power was given unto them over the fourth part of the earth, to kill with sword, and with hunger, and with death, and with the beasts of the earth.