I posted this over on SIG Talk, but since I put a lot of work into it, I thought, what the heck, I'll post it here, too.
There have been some posts and threads on SIG Talk that have related bad experiences with SIG’s Voluntary Upgrade program for the P320 trigger. This post will not be one of them. Maybe I got lucky, but I had an extremely positive experience. Here’s what happened:
Just before Christmas, SIG notified me that they were ready for me to send in my P320 9mm and my .357 SIG caliber X-change slide. My P320 had fired 4,500 rounds as a 9mm, and 2,600 rounds as a .357 SIG, so it was fully broken-in. I sent everything off before New Year’s Day and SIG received them on Jan. 3. SIG kept them a little under three weeks, and I received them back Jan. 23. I gave them a good cleaning (they were covered in preservative oil), and checked them out thoroughly. The slides were original, and there was absolutely no damage.
I checked the trigger function, and all I could say is, “Wow!” There was no slop, grit, or sponginess whatsoever in the upgraded trigger. It felt the same with both slides. As soon as my finger touched the trigger, it was up against the break point. I checked trigger travel by placing a ruler along the horizontal trigger guard, and simply measured (several times) how far the tip of the trigger traveled from start to stop. Total distance was 5/16”. Take-up was 3/16”, and pull-through to trigger stop was 2/16”. I don’t have a trigger gauge, but the trigger pull weight appears to be unchanged, or at most, it’s half a pound lighter. It’s definitely not heavier. Given the short take-up, it’s probably a good thing that it’s not significantly lighter, as it would then be too easy to pull.
Next, I let a couple of friends who are experienced shooters dry fire my P320. One of them has his own P320 with an Apex trigger. Like me, they both said, “Wow!” The P320 owner said my trigger was equal to or better than his Apex, and that if he had known he could get a trigger like mine for free, he wouldn’t have spent his money on an Apex.
OK, it looks good and feels great, so how does it shoot? The day after I received it, I took it to the range and shot 135 rounds of 9mm and 100 rounds of .357 SIG. I shot Speer Lawman and Gold Dot in both calibers, plus Win NATO in 9mm. I shot 50 rounds each slow-fire at 15- and 20-yard targets with 9mm, and 40 rounds each at 15- and 20-yard targets with .357 SIG. The rest of the ammo was used in rapid-fire and one-handed practice at 10 yards. The performance was flawless, and with the 15- and 20-yard targets, I shot the best 4-target sequence at those distances that I have ever shot with any gun.
I’ve attached photos of the 20-yard targets for each caliber. The target on the left in each photo is the last one I shot before the upgrade, the one on the right is the first one I shot afterwards. The first photo is of the 9mm targets, the second of the .357 SIG targets. I calculated an accuracy score, which is the percentage of shots that landed in the 4” X 4” square surrounding the bullseye. My 9mm pre score was 38%, and the post score was 54%. My .357 SIG pre score was 47% and my post score was 63%. The groupings were also tighter for each caliber on the post-upgrade targets.
While I’m clearly no marksman, I believe my shooting has definitely benefited from the smooth, crisp upgraded trigger in my P320. If this somewhat shaky 74 year-old can shoot better post-upgrade, think of how it can benefit you steady-handed young whippersnappers.
If we’re voting here, I’m definitely in the pro-upgrade camp.
There have been some posts and threads on SIG Talk that have related bad experiences with SIG’s Voluntary Upgrade program for the P320 trigger. This post will not be one of them. Maybe I got lucky, but I had an extremely positive experience. Here’s what happened:
Just before Christmas, SIG notified me that they were ready for me to send in my P320 9mm and my .357 SIG caliber X-change slide. My P320 had fired 4,500 rounds as a 9mm, and 2,600 rounds as a .357 SIG, so it was fully broken-in. I sent everything off before New Year’s Day and SIG received them on Jan. 3. SIG kept them a little under three weeks, and I received them back Jan. 23. I gave them a good cleaning (they were covered in preservative oil), and checked them out thoroughly. The slides were original, and there was absolutely no damage.
I checked the trigger function, and all I could say is, “Wow!” There was no slop, grit, or sponginess whatsoever in the upgraded trigger. It felt the same with both slides. As soon as my finger touched the trigger, it was up against the break point. I checked trigger travel by placing a ruler along the horizontal trigger guard, and simply measured (several times) how far the tip of the trigger traveled from start to stop. Total distance was 5/16”. Take-up was 3/16”, and pull-through to trigger stop was 2/16”. I don’t have a trigger gauge, but the trigger pull weight appears to be unchanged, or at most, it’s half a pound lighter. It’s definitely not heavier. Given the short take-up, it’s probably a good thing that it’s not significantly lighter, as it would then be too easy to pull.
Next, I let a couple of friends who are experienced shooters dry fire my P320. One of them has his own P320 with an Apex trigger. Like me, they both said, “Wow!” The P320 owner said my trigger was equal to or better than his Apex, and that if he had known he could get a trigger like mine for free, he wouldn’t have spent his money on an Apex.
OK, it looks good and feels great, so how does it shoot? The day after I received it, I took it to the range and shot 135 rounds of 9mm and 100 rounds of .357 SIG. I shot Speer Lawman and Gold Dot in both calibers, plus Win NATO in 9mm. I shot 50 rounds each slow-fire at 15- and 20-yard targets with 9mm, and 40 rounds each at 15- and 20-yard targets with .357 SIG. The rest of the ammo was used in rapid-fire and one-handed practice at 10 yards. The performance was flawless, and with the 15- and 20-yard targets, I shot the best 4-target sequence at those distances that I have ever shot with any gun.
I’ve attached photos of the 20-yard targets for each caliber. The target on the left in each photo is the last one I shot before the upgrade, the one on the right is the first one I shot afterwards. The first photo is of the 9mm targets, the second of the .357 SIG targets. I calculated an accuracy score, which is the percentage of shots that landed in the 4” X 4” square surrounding the bullseye. My 9mm pre score was 38%, and the post score was 54%. My .357 SIG pre score was 47% and my post score was 63%. The groupings were also tighter for each caliber on the post-upgrade targets.
While I’m clearly no marksman, I believe my shooting has definitely benefited from the smooth, crisp upgraded trigger in my P320. If this somewhat shaky 74 year-old can shoot better post-upgrade, think of how it can benefit you steady-handed young whippersnappers.
If we’re voting here, I’m definitely in the pro-upgrade camp.
