My 320 Observations Over The Years.
There might not be a more controversial firearm than the Sig P320. You either love them or hate them. Defend it or mock them. I've watched every single video possible with the ND's. And I have tried to read every article good or bad. I have torn apart every FCU I own and tried to learn as much as possible as to why Sig designed it the way they did. I don't know if the ND's are the mechanism but it's almost impossible to deny it at this point, something is weird.
So, here's my take and my experience.
I decided to build the Harrington Arms Gucci 320 a few years ago. I assembled my build list and got to ordering. I picked up a X Compact from my local dealer and waited parts to arrive. In the meantime, the 320 shitstorm started. I assumed it was stupid cops, women throwing it in their purse, keys getting in the trigger gaurd, etc. Honestly, some of those things probably happened. At this point I knew nothing about the 320 FCU but I know Glocks and Shadow Systems like the back of my hand. I could assemble them blindfolded. They're simple, 34 sturdy parts, proven. Comparing it to the 320 FCU, I was actually kind of pissed. Fragile springs, an overcomplicated FCU and slide components that are laughably small. The thought of this FCU surviving combat overseas, in a dirty environment just isn't possible. Just putting the FCU in the module made me scratch my head. The trigger bar spring almost looks like it could catch on the module while assembling. I did all the tests and checked my build dates for the recalls. All passed and off to the range I went. I built a couple module version, 1 a cerakoted stock frame and the other a Icarus Precision Socom Elite with a Delta Point Pro but eventually a C&H Precision enclosed emitter, TLR-1HL, a Harrington Arms comp and a Agency Arms trigger shoe with the safety dingus. I'm used to Glocks so the trigger felt more comfortable. The gun shot great. Better than great, it felt like a .380. I put damn near 1000 rounds through it.
I did notice something interesting when I ordered holsters that brought me back to the ND conversation. My first holster from Tier 1 was worrying. The trigger coverage was nonexistent and damn near scary. I love Tier 1, I contacted them about it and after some back and forth they sent out a second one that was slightly better. I couldn't use it so I ordered 1 from T Rex that did a better job and it was enough coverage that I was comfortable with. I just picked up another FCU and decided to put together an X Compact with no bells and whistles but with a TLR-7A. That holster looks more like a traditional G19 holster with TLR-7A. It doesn't have the gaps you get with a TLR-1HL or a SureFire X300. The size of the opening has to be massive with the larger light. I had a hard time ordering holsters for this particular gun so maybe these pictures will help others. The blue holster with the metal clips is the T Rex, blue with plastic clips is the Tier 1, both with TLR-1HL. The red holster is the T Rex with the TLR-7A.