Action Enhancement Trigger & Duty/Carry Kit for M&P Shield 45
About this product
What is the Action Enhancement Trigger & Duty/Carry Kit for M&P Shield 45? It is a drop-in trigger system engineered to optimize the M&P Shield 45's trigger mechanics for duty and carry applications. Based on Apex's proven design philosophy, this kit transforms the factory trigger's feel and performance without compromising safety protocols.
What is the Action Enhancement Trigger & Duty/Carry Kit used for?
This kit is used for enhancing the trigger performance of the Smith & Wesson M&P Shield 45 pistol in duty and concealed carry roles. It reduces trigger pull weight by approximately 2 lbs, minimizes pre-travel and over-travel, and provides a crisp break with a shortened reset distance. The result is improved shot placement and faster follow-up shots under stress.
How does the Action Enhancement Trigger & Duty/Carry Kit compare to the Apex Tactical Forward Set Sear Kit?
The Break Point Armory kit offers a more balanced approach between duty reliability and performance enhancement compared to the Apex Forward Set Sear Kit. While the Apex kit reduces reset distance to 2.1mm for competition use, our kit maintains a 3.5mm reset for enhanced reliability in defensive scenarios. The Break Point kit is better for duty use where absolute reliability is prioritized over maximum speed.
What does it weigh and what are the dimensions?
The complete kit weighs 85 grams in packaging and measures 120mm × 80mm × 25mm. Individual components include a trigger shoe measuring 12mm wide with a 5mm face profile, and a sear assembly that occupies approximately 15mm × 8mm × 6mm within the fire control group housing.
Who is this NOT for?
This kit is not for shooters who prefer the factory trigger's longer travel and heavier break characteristics. It's also unsuitable for M&P Shield models chambered in 9mm or .40 S&W, as the sear geometry is specifically calibrated for the Shield 45's unique fire control group dimensions. Competition shooters seeking the shortest possible reset should consider our more on Action Enhancement Kit for CZ P-10 instead.
What's in the box?
The kit contains precisely machined components including one trigger shoe, one sear (#2 or 2-dot variation per transition phase), one trigger return spring rated at 4.5 lbs, and one pivot safety lever. All components are packaged in anti-corrosion treated foam with installation instructions referencing our see 4" Pillar File for any necessary deburring.
Is the Action Enhancement Trigger & Duty/Carry Kit worth it at $150?
At $150, this kit provides measurable performance improvement for serious Shield 45 users who require enhanced trigger control. The 2 lb reduction in pull weight and 40% reduction in reset distance translate to tangible accuracy gains. For professionals who carry this platform daily, the investment justifies itself through improved shot placement and confidence in the weapon system.
Specs at a glance
Video review
Pros & cons
What works
- Reduces trigger pull weight by 2 lbs — from factory 6.5 lbs to 4.5 lbs
- Shortens reset distance to 3.5mm — 40% reduction from factory 6mm
- Maintains factory safety margins — pivoting safety lever retains original drop safety function
- Drop-in installation — requires zero fitting or modification to firearm
Trade-offs
- Sear transition phase creates inventory inconsistency — customers receive either #2 or 2-dot sear randomly
- No included installation tool — requires separate purchase of armorers punch set ($25-40)
- Limited caliber compatibility — works only with Shield 45, not 9mm or .40 S&W variants
Expert review
Key attributes
| Caliber | .45 ACP |
| Compatibility | M&P Shield 45 |
| Pull Weight Reduction | 2 lbs |
| Reset Distance | 3.5 mm |
| Installation Type | Drop-in |
| Safety Features | Pivoting safety lever |
| Package Weight | 85 g |
| Sear Type | #2 or 2-dot (transition phase) |
Frequently asked questions
- Is it compatible with M&P Shield 9mm?
- No, this kit is specifically engineered for the M&P Shield 45 platform only. The sear geometry and trigger bar interface dimensions differ by 0.8mm from the 9mm version. Apex Tactical produces separate kits for Shield 9mm and .40 S&W models.
- Does it fit M&P Shield 45 Performance Center models?
- Yes, it maintains full compatibility with Performance Center variants. The fire control group dimensions are identical to standard Shield 45 models. Installation requires approximately 45 minutes using standard armorers tools.
- How long does shipping take?
- Standard shipping via USPS Priority Mail takes 2-3 business days within continental US. International shipments to authorized dealers require 7-10 business days via DHL Express with proper export documentation.
- Can I return it if it doesn't fit?
- Returns are accepted within 30 days provided components are unused and original packaging is intact. A 15% restocking fee applies to opened kits, and return shipping is at customer expense. Contact support@breakpointarmory.com for RMA authorization.
- Does this work with aftermarket connectors?
- Compatibility is limited to factory-spec connectors only. Aftermarket connectors with altered geometry may cause engagement issues. We recommend using the included sear with factory connectors for guaranteed reliability.