I was wondering with the Sigma being cheeper than a Glock are the internal parts of the same quality or not?

I was wondering with the Sigma being cheeper than a Glock are the internal parts of the same quality or not?

Glocks are not more expensive because they are made with better parts. They cost more to buy because Glock has to offset the hit they take when offering police departments to trade in their old non glock guns for Glock at no fee or a very low one. The gun buying public is willing to pay the price because glocks have to be the best guns because 70% of police departments use them.

I don't see many posts here regarding reliability issues, so I'm guessing that LuddhaBuddha has it right. The internals are amazingly similar, both in shape and composition, hence the infamous lawsuit. I generally describe my Sigma 40F as "a Glock designed to be held by the human hand." I went to a very experienced gunsmith friend before buying it and asked what he knew about them, having been to every armorer school S&W offered at the time. He responded that he'd owned both a Sigma and a Glock, and the biggest difference was that he'd had one recall on the Glock and none on the Sigma.