Apex Sear Calibration Kit for M&P & M2.0
About this product
The Apex Sear Calibration Kit for M&P & M2.0 is a precision-engineered component set that allows operators to fine-tune trigger pull weight while retaining factory trigger geometry and safety functions. Designed as a direct drop-in replacement for Smith & Wesson M&P and M2.0 series pistols, this kit provides surgical control over trigger performance without compromising reliability. Each component undergoes CNC machining to tolerances within 0.001 inches, ensuring consistent engagement surfaces across production batches.
What is the Apex Sear Calibration Kit used for?
This kit calibrates trigger pull weight while maintaining original trigger geometry for Smith & Wesson M&P series pistols. It allows operators to reduce pull weight from the factory 6.5-7.5 lb range down to a consistent 4.5 lb standard deviation of ±0.2 lb. The system preserves all factory safety features including trigger safety blade function and sear engagement depth verification.
How does the Apex Sear Calibration Kit compare to the Hyve Technologies Monarch Trigger?
The Apex kit maintains factory trigger geometry while the Hyve Monarch replaces the entire trigger assembly with an adjustable shoe. Our testing shows the Apex system provides more consistent break characteristics with a standard deviation of 0.2 lb versus Hyve's 0.4 lb variation. The Hyve offers greater visual customization but introduces additional tolerance stacking that affects predictability.
What does it weigh and what are the dimensions?
The complete kit weighs 28 grams with packaging dimensions of 3.2 x 2.1 x 0.8 inches. Individual sear components maintain critical engagement angles within 0.5 degrees of factory specifications. The hardened steel sear measures 0.312 inches in width with a Rockwell hardness rating of C58-60, providing approximately 15,000-round service life under normal use conditions.
Who is this NOT for?
This kit is unsuitable for competitive shooters requiring sub-3 lb trigger pulls or those seeking complete trigger assembly replacement. Operators needing full trigger replacement should consider our Action Enhancement Kit for CZ P-10 which provides complete trigger system overhaul. The calibration approach also doesn't address trigger travel reduction or reset modification.
What's in the box?
The kit contains three precision-machined sear variations providing pull weight options of 4.5 lb, 5.0 lb, and 5.5 lb respectively. Each sear receives final hand-lapping to ensure engagement surface uniformity. Packaging includes installation instructions detailing torque specifications for the sear pin (8-10 in-lb) and recommends using our 4" Pillar File for any necessary frame clearance adjustments.
Is the Apex Sear Calibration Kit worth it at $55?
At $55, the kit delivers measurable performance improvement for operators seeking pull weight reduction without geometry changes. The cost represents approximately 25% of a complete trigger replacement system while addressing the most common performance complaint. For duty or carry applications where reliability cannot be compromised, this calibrated approach provides the optimal balance of performance enhancement and safety preservation.
Specs at a glance
Video review
Pros & cons
What works
- Maintains factory safety margins while reducing pull weight by 1.5-2.0 lb
- Three sear options provide 4.5 lb, 5.0 lb, and 5.5 lb pull weight selections
- CNC machining maintains 0.001 inch tolerances for consistent engagement
- 28 gram total weight adds negligible mass to firearm system
- Compatible with all M&P/M2.0 full-size and compact models manufactured 2005-present
Trade-offs
- Does not address trigger travel or reset characteristics - limited to pull weight adjustment only
- Requires complete disassembly of fire control unit for installation (7-step process)
- Sear selection process requires trial installation - no external adjustment mechanism
- Not compatible with M&P Shield, SD9, or other S&W variants without modification
Expert review
Key attributes
| Compatibility | S&W M&P/M2.0 Full-Size/Compact |
| Pull Weight Options | 4.5 lb, 5.0 lb, 5.5 lb |
| Material | Hardened Tool Steel |
| Hardness | C58-60 Rockwell |
| Tolerance | ±0.001 inches |
| Installation Time | 12-30 minutes |
| Country of Origin | USA |
| Service Life | 15,000 rounds |
Frequently asked questions
- Is it compatible with M&P Shield models?
- No, the kit is specifically engineered for full-size and compact M&P/M2.0 frames with a sear housing block width of 0.312 inches. Shield models use a different sear configuration requiring separate calibration components. Verify your model's sear dimensions before purchase.
- Does this work with Apex Tactical trigger shoes?
- Yes, the sear calibration kit maintains compatibility with all Apex trigger shoes including the Forward Set Trigger and Flat-Faced models. Installation requires standard M&P disassembly procedures and typically completes in under 15 minutes with proper tools.
- How long does installation take?
- For an experienced armorer, installation requires approximately 12 minutes using standard punches and vise blocks. Novice installers should allow 25-30 minutes following the provided technical data sheet. The process involves 7 discrete steps including sear spring orientation verification.
- Can I return it if it doesn't fit my specific M&P variant?
- Break Point Armory accepts returns within 14 days for uninstalled components. Due to firearm regulation compliance, we cannot accept returns on installed or modified parts. Confirm your M&P generation (1.0 vs 2.0) and caliber variant before installation.
- Does this work with aftermarket striker assemblies?
- Compatibility depends on striker geometry - the kit works with OEM strikers and Apex Tactical failure-resistant strikers. Some aftermarket strikers with altered engagement angles may require additional fitting. We recommend testing function with a minimum of 50 dry-fire cycles before live firing.