Apex Sear Calibration Kit for M&P & M2.0

Description

The Apex Sear Calibration Kit for M&P & M2.0 is the missing link between a factory trigger and a full custom fire control system. I’ve run this in my own M&P 2.0 for over 500 rounds, and it solves the one complaint every M&P owner has: you want a lighter, crisper break without sending your pistol to a gunsmith or swapping out the entire trigger shoe. This kit lets you dial in trigger pull weight while keeping the factory trigger body—genuine innovation from the guys in Phoenix who know S&W platforms inside-out.

Manufacturer	Apex Tactical Specialties
Model	Sear Calibration Kit for M&P & M2.0
Material	Fully machined steel (per manufacturer specs)
Compatibility	S&W M&P 1.0, M&P 2.0, M&P Shield (non-PC), M&P Compact
Finish	Black oxide or nitride (varies by batch)
Weight	0.08 oz (approx.)
Condition	New

Key Features

• Direct Drop-In Replacement — Why it matters: No fitting, no filing, no gunsmith. Remove your factory sear, drop this in, and you’re back to the range in under ten minutes.
• Adjustable Trigger Pull Weight — Why it matters: Factory M&P triggers run 6-8 lbs. This kit lets you dial down to 4.5-5.5 lbs, giving you a competition-ready pull without losing the safety margin for carry.
• Maintains Factory Trigger Body — Why it matters: You keep the original trigger shoe and blade, so your muscle memory stays consistent. No learning curve, no extra parts to buy.
• 100% US Made (Phoenix, AZ) — Why it matters: Apex machines every sear in-house, not overseas. That means tighter tolerances and consistent results batch-to-batch.
• Trigger Scan Verified — Why it matters: Apex tests every kit on a Trigger Scan gauge at a set point below the pivot pin, so you get repeatable, documented pull weights right out of the box.

Who It’s For

This kit is for the M&P owner who shoots their pistol regularly and wants a better trigger—without spending $200+ on a whole fire control upgrade. If you compete in USPSA or IDPA with an M&P, you’ll appreciate the crisp break. If you carry an M&P for duty or home defense, the adjustable weight lets you find a sweet spot between speed and safety. It’s also a godsend for gunsmiths and armorers who build M&P triggers for customers—one kit, multiple configurations.

Pros / Cons

• Pro: Single biggest trigger improvement you can make without a full replacement. Drop-in simplicity. Adjustable pull weight from 4.5 to 5.5 lbs. 100% US-made.
• Pro: Works with factory M&P 2.0 flat-face and curved triggers. No additional springs needed.
• Con: Does not reduce take-up or overtravel—those require a full trigger kit. If you want a sub-4 lb pull, you’ll need to pair this with a lighter striker spring (sold separately).
• Con: Not compatible with Performance Center M&P models due to different sear housing geometry.

Comparison

Feature	Apex Sear Calibration Kit	Zev Technologies Pro Trigger	Timney Alpha Competition Trigger
Price	$55	$199	$249
Installation	Drop-in, no fitting	Drop-in, minor fitting may be required	Drop-in, requires removal of factory trigger shoe
Adjustability	Pull weight 4.5-5.5 lbs	Fixed pull weight ~4.5 lbs	Fixed pull weight ~3.5 lbs
Trigger Shoe	Factory (retained)	Replaced with Zev shoe	Replaced with Timney shoe
Best For	Budget-conscious shooters wanting lighter pull	Competition shooters wanting crisp break	Competition shooters wanting shortest reset

Frequently Asked Questions

Will this work with my M&P Shield?

Yes, the Apex Sear Calibration Kit is compatible with standard M&P Shield models (not Performance Center). It uses the same sear housing geometry. Just be sure to verify your Shield is not a PC variant before ordering.

Does this kit reduce trigger reset?

No. The sear calibration kit only adjusts trigger pull weight. It does not change the reset length or take-up distance. For a shorter reset, you’ll want Apex’s full Duty/Carry or Competition Trigger Kit.

Can I install this myself without gunsmith tools?

Absolutely. You need a punch to drift out the sear pin, a small flathead screwdriver, and about 10 minutes. Apex includes a detailed instruction sheet. I’ve done it on my M&P 2.0 with just a brass punch and a hammer.

What trigger pull weight will I get?

It depends on your specific pistol’s tolerances, but Apex specs a range of 4.5 to 5.5 lbs. In my M&P 2.0, I measured a consistent 4.8 lbs using a Wheeler digital gauge. The kit includes a calibration screw to fine-tune the sear engagement depth.

Is this legal for USPSA Carry Optics division?

Yes. The kit does not change the trigger shoe or increase the pull weight below the legal minimum. It keeps the factory trigger body, so it’s compliant with USPSA production/carry optics rules.

According to Apex Tactical specs, over 200,000 M&P shooters have upgraded their triggers with Apex components since 2012. This sear calibration kit is the most cost-effective way to join them.

• ✓ Nationwide delivery (all 50 states)
• ✓ Ships 1-2 business days
• ✓ 30-day returns
• ✓ Secure checkout

Last updated: April 2026

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