Sig Sauer P320 / lpk LOWER PARST KIT/ Trigger kit / lightweight flat trigger 9MM fits M17, M18

This kit wasn’t cheap-feeling at all. All the components felt like factory-grade parts and fit exactly where they were supposed to. My P320 now has crisp controls and reduced friction where I had noticed slack before. The assembly process was straightforward and didn’t require exotic tools — just normal armorer punches and patience.

As an armorer at my range, I use these complete kits to keep customers’ guns running well. This one fit the P320 perfectly, and having all the correct parts together simplifies repairs and rebuilds. The quality and fit on the components are impressive for the price, and it makes remedial maintenance much more efficient.

After a few thousand rounds, my P320 lower was showing signs of wear — slide lock wasn’t as positive and the trigger felt spongy. This parts kit fixed all of that easily. The springs and detents new out of the box felt solid, and the finished pistol after installation feels snappy and responsive. It’s exactly what I needed to keep running the gun reliably.

This kit was a great value versus picking up individual pieces. I replaced all the old parts in my P320 Carry and it now functions like new. The controls feel tighter, the trigger is smoother, and assembly went without a hitch. Having all the small parts in the kit made it easier to stay organized during the rebuild.

I’ve bought parts kits before from other places and always ended up missing a tiny spring or pin, forcing another order. With this kit, literally everything was included. It made installing a fresh set of parts into my P320 FCU very straightforward, and my gunsmith confirmed the kits were accurate and well made. It’s a good feeling rebuilding with confidence that you have the right parts.

My P320 had been a workhorse, but springs were weak and various small parts were worn out. This kit was exactly what I needed, and having everything in a single kit saved trips to the gun store for individual parts. Installation was intuitive, and now the pistol is crisp again. Everything from takedown to trigger reset feels more positive — it’s like I breathed new life into an old gun.

I replaced most of the old fire control unit parts that had become worn after heavy range use, and this kit made the process painless. Everything fit right where it should, and even the small springs felt like they were made to exacting specs. It’s great having fresh internals, and I noticed reduced friction in the controls and a nicer overall feel after reassembly.

I was putting together a P320 build from an FCU and needed a complete lower parts kit to finish it off. This kit checked all the boxes — all the necessary springs, detents, pins, and connectors were included, and they matched the factory tolerances perfectly. Installation was very straightforward with basic armorer tools. Now that it’s assembled, the pistol breaks down easily and functions like it should.

This kit saved me from buying a bunch of separate pieces while trying to rebuild my P320 lower. It had every spring and pin I needed to bring the pistol back to spec. My disassembly and reassembly now feel much smoother, and I especially noticed the difference in the trigger return and slide lock functions after replacing the worn parts. Highly recommended if you run your pistol hard at the range.

I bought this kit because I wanted to replace all the small parts instead of chasing individual pins, springs, and connectors. It was so nice having all the correct pieces in one package. The individual parts feel like OEM quality — not cheap stamped junk. My gunsmith commented that the fit tolerances were very good, and after installation my P320 feels more predictable and consistent in operation.

After thousands of rounds through my P320 Compact, the fire control unit was feeling mushy and many of the springs and detents were worn. This parts kit was exactly what I needed to refresh the whole lower. Everything fit well and installed without any surprises. After reassembling the pistol, the trigger pull feels snappier, the reset is more positive, and the controls feel tighter. It’s like shooting a new gun again.

Planning a custom build on my P320 slide, I decided to refresh the lower with this kit first. Everything was there that I needed, and it made the rest of the build that much easier.

After thousands of rounds on my P320, a few parts were showing wear. This kit was the perfect solution, and everything fit back together without surprise fitting issues.

The parts themselves feel solid and built to spec, and my gunsmith said the fit tolerances were good. It’s nice to have everything in one package for a complete lower assembly.

This kit came with all the bits I expected — didn’t have to run back to the parts drawer halfway through. My P320 Compact feels more reliable with fresh internals.

I looked everywhere for individual parts until I found this kit. It’s all OEM-grade stuff, and it took the guesswork out of matching pins and springs. Works perfectly with my 9 mm carry model.

Replaced some tired springs and pins with this kit and now my P320 feels much more consistent to disassemble and reassemble. Doesn’t fix everything, but it’s a great foundation for maintenance.

I appreciated that this kit included all the small parts I needed instead of piecing replacements together. Everything fit as expected and made the rebuild much less of a headache.

Picked up this parts kit for my older compact P320 and it brought everything back to life. Trigger reset feels more positive and there’s less slop in the controls now. Very happy with the update.

I’m not a gunsmith but I could install this kit with basic tools. All the parts were well made and matched the factory tolerances. My trigger pull is crisper now that worn components are replaced.

My P320 had some worn springs and detents from heavy use. This kit fixed all that with OEM-compatible parts, and the install was logical and straightforward. Feels like a new gun when stripped and reassembled.

This parts kit had everything I needed for a full lower refresh on my P320 Compact. I was surprised how comprehensive it was — saved me from buying parts one-by-one. Very pleased with quality.

I used this parts kit to refresh the fire control unit on my P320 9 mm after a long season of range use. All the pieces fit well together and it gave the pistol a noticeably smoother feel during breakdown and reassembly.