Upgrading the P320 trigger. If you're looking to improve control and comfort, changing the trigger can be the way to go. Knowing which options are best can definitely make this process smoother since it's a bit confusing what's available on the market.
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Common Issues with Stock P320 Triggers
Trigger Pull Weight
Even though the Sig Sauer P320 is a solid piece of hardware, some folks find the factory trigger pull a bit too much to handle, affecting both accuracy and comfort over time.
Travel and Reset
The factory trigger can feel like it's taking a scenic route, both while being pulled and when resetting, which might slow you down when you're in rapid-fire mode.
Safety Concerns * The Biggest
Even after Sig addressed drop safety concerns with their upgrade program, some gun owners stick with concerns about safety when handling.
Top P320 Aftermarket Trigger Upgrades
Apex Tactical Advanced Flat Trigger (Please Check InSTOCK Status)

Specifications:
- Reduces pull weight by ~2 lbs
- Flat-face design
- Easy, no-tool installation
- Price: From $100 to $120
Benefits:
- Ready for those who don’t love the factory's heavy trigger pull
- Get back on target faster with a red dot
- Offers a smoother, more consistent pull with a flat design
- 20% reduction in overall trigger travel and about a 10% reduction in trigger pull weight
For those on a budget but wanting a solid upgrade, it's a great option.
Grayguns P320 Adjustable Straight Trigger Kit
Specifications:
- Customizable overtravel reduction
- Pull weight adjusted between 3–4 lbs
- Preserves factory safety mechanisms
- Price: $159 to $164
Benefits:
- Perfect for competition shooters
- Adjustable for a customized shooting experience and better reset
Armory Craft Dual Adjustable Flat Trigger
Fits ALL P320 Models (including AXG, M17/18, X5, X5 Legion, Compact, Sub-Compact, X-Compact, X-Carry, X-VTac, X-Ten etc.) in ALL calibers.
Specifications:
- Allows for pretravel and overtravel tweaks
- Enhanced geometry for accuracy
- Compatible with post-2017 P320 models
- Price: $120 to $150
- 100% compatible with California M18 P320 pistols, while the magazine disconnect feature does NOT have to be removed.
Benefits:
- Can be tweaked for precision at rapid fire and accuracy
Tactical Triggers P320 Trigger Kit
Specifications:
- Adjustable to a light 2.5 lbs
- Customizable reset controls
- Modular installation
- Price: $140 to $160
Trigger | Pull Weight Range with kit |
Sig Sauer OEM Curved Trigger | 4 to 5# |
Sig Sauer OEM Flat Trigger | 3 to 4# |
Sig Sauer OEM Skeletonized Flat Trigger | 2.5 to 3.5# |
Benefits:
- Allows maximum tweaking for those who like playing around with settings
Great kit for adjustability lovers who want that custom feel. Source
Installation Tips
Swapping out a P320 trigger often means digging into the Fire Control Unit. Here's the lowdown:
- DIY Installation: Kits like the Apex Tactical are a breeze to handle and require no special tools.
- Professional Installation: Some other kits may need a bit more finesse. Just be sure to never trade for safety.
Misconceptions and Considerations
When thinking about trigger mods on the Sig P320:
- Warranty: Be mindful that such changes might impact Sig Sauer’s factory warranty. Always smart to double-check with them first. Source
- Drop Safety: A lot of folks fret over safety, but a well-installed, quality aftermarket trigger should maintain safe standards without issue.
Pricing Overview
Trigger Upgrade | Approx. Price Range | Key Benefits |
---|---|---|
Apex Tactical | $100–$120 | Easy installation, reduced pull weight |
Grayguns Competition | $159–$164 | Adjustable, competition-grade performance |
Armory Craft Dual Adj. | $120–$150 | Dual adjustments, rapid-fire optimization |
Tactical Triggers Kit | $140–$160 | Highly customizable trigger performance |
Whether you're tightening up your competition game or just want a smoother bang for your buck, upgrading your P320 trigger can make an everyday shooter feel like a pro's choice. Enjoy the process, keep it safe, and maybe give yourself permission to have some fun tinkering along the way.
FAQ
Is upgrading my P320 trigger legal?
Yes, upgrading your P320 trigger is legal in most jurisdictions. However, it's essential to check your local and federal laws to ensure compliance with any regulations regarding firearm modifications.
Will modifying my trigger void the warranty?
Modifying the trigger may affect Sig Sauer's factory warranty. It's advisable to consult with Sig Sauer or review their warranty policies before making any changes. Source
Can I install the new trigger myself?
Many trigger kits are designed for easy installation without professional tools. However, if you're uncomfortable with the process, seeking help from a professional gunsmith is recommended.
How do aftermarket triggers affect safety?
Nothing is guaranteed to work flawlessly. Always ensure that any modifications do not compromise the safety mechanisms of your P320. I rather have a heavy trigger that goes off whenever I deliberately press the trigger than something that can show off on the range, but potentially endanger everyone around it.