This is kind of funny. Every time the Sigma is mentioned, everyone starts whining about it being a "cheap" Glock knock-off, and they bring up the problems with the early Sigmas.
Instead of whining, here are the facts:
S&W recognized their problems with the early Sigmas. The former owners (Brits) forced the engineers to put the early Sigma into production when it really wasn't ready. Later, too much later IMO, they redesigned the Sigma and made many improvements to it. This resulted in a "Glock-type" pistol which is a vast improvement over the Glock.
-They lowered the ejection port which solved the ejection problems.
-They swapped from a chisel tip, loose tolerance striker system (like the ones that keep breaking for NYPD on their Glock 19's) to a close tolerance (everything within .002") round striker system. Not a single striker breakage reported since the "Enhanced" Series Sigma has been introduced.
-They completely redesigned the trigger system. No more misfires.
-They added the equipment rail. Not only is it perfect for a Streamlight M4, but it strengthened the front of the dust cover. Not a single frame crack reported since the new design.
-Simple changes like checkering on the grips and recontouring of the slide, and a loaded chamber indicator.
All this, with the most ergonomic grip angle I have ever felt. You don't have to break your wrist to shoot it like you do with a Gluck. And, it has cut rifling and MUCH more chamber support so reloads and cast bullets are completely safe. Hmmm, never heard of a Sigma "Kaboom!"
Sure, you can call it a "cheap" knockoff. The only reason the price is so much lower than a Gluck is because S&W makes a quality product, with a lifetime warranty, and sells it for a modest profit. On the other hand, Glock sells something which is "perfect"
for a completely outrageous profit. You can't tell me that the plastic in a Glock costs $200 more than the plastic S&W uses!
But, this is going to turn into a huge P***ing match. Glock finatics are just that, finatical. All I'll say is "KABOOM!"