As we all aware, the Smith & Wesson Sigma/SD series has a long and storied history within the halls of handguns. Moreover, some of it isn’t deserved. The Sigma/SD is noted for being kind of a workhorse, even with its trigger being among one of the most commented-on features of the lineup. They are extremely reliable firearms; when a person pulls the trigger on a Sigma or an SD, they are going to go bang, pretty much every time.
I bought a Sigma for my first gun ever, a private purchase about four years ago from another member of my church that I trusted, for about $400. They even threw in about 250 rds of range ammo to sweeten the deal, plus 25 rounds of personal defense JHP rds. Given the going rate for these guns, I would say it was a fair deal. I noticed right off the bat that the trigger was just one of the most difficult I’d ever worked with. Smith & Wesson wanted to make sure you REALLY wanted whatever was in front of you to have a hole in it.
So, I began reading up on trigger kits and noticed that Galloway Precision and Apex Tactical had trigger kits available. The Galloway Precision product got mediocre reviews where Apex Tactical users reported the trigger being…well, usable for once. So, I ordered the kit from Apex, including the new polycarbonate trigger that was supposed to improve reset distance and Apex claimed it would work with the Sigma and the SD series.
Turns out I ordered the wrong spring kit, I ordered the full SD kit, when I should have read closer. The trigger would work, but the springs were unsuitable. So, I ordered the proper springs on a second order and installed it all after carefully watching and rewatching Scott Wolf do it on YouTube. I got to the range yesterday and tried using it. The new trigger wouldn’t reset all the way, turning a semi-auto pistol into a breechloader.
So, back went the factory trigger, with its terrible travel and reset, but at least it worked. Apex suggests filing down the polycarbonate replacement trigger to get it to reset properly and as soon as I feel brave enough to screw one up, I’ll do it. Now, I replaced the sear spring with the MCARBO part. I replaced the striker spring, striker block spring, and trigger reset spring with the kit from Apex. I replaced the recoil spring and factory plastic guide rod with a stainless steel one from Stainless Steel Springs. Essentially, I replaced everything that was ‘budget’ about a budget firearm, and the minute someone makes a steel striker guide sleeve to replace the flimsy plastic one, I’ll replace that, too.
And you know what I have for all that? A gun that shoots about as well as a factory-stock Ruger American Pistol in the same caliber. Actually, not even that well. So, take a gun that retails for about $350 at Cabela’s, throw in about $100 in parts, and you get the same results as you would if you’d spent another $50 at the outset. I cannot recommend the Sigma/SD series pistols for anything more than a last-resort truck gun. Though I’m sure the gun has its fans, I just simply don’t care for it. It will be my son’s range gun for the next few years, and he may even have it gifted to him when he turns 21.
Spend a little more. Get a better gun. Your life may depend on this thing, so don’t be afraid to spend a few bucks more and get better quality.