The Smith & Wesson M&P9 M2.0 is one of the best striker-fired duty pistols on the market, and it responds beautifully to a few targeted upgrades. Where the full-size M2.0 already gives you a great grip, an aggressive texture, and an optics-ready slide, the aftermarket lets you fix the two things owners most often want to improve — the trigger and the sights — and then build outward into an optic, a light, and match accuracy. A tuned M2.0 shoots with guns costing far more.
Below are the M&P 2.0 parts and accessories we would buy first, from the trigger that transforms the gun to the holster that finishes a carry or duty setup. These picks fit the full-size and compact M2.0 in most cases; match magazines and any frame-specific part to your exact model. Each is backed by a live price check across the retailers we track.

How we tested: Every pick here was run through our testing methodology. Minimum round counts, accuracy and reliability protocols, the failures that disqualify a gun. If we haven't shot it, we don't recommend it.
M&P 2.0 Upgrades at a Glance
| Category | Our Pick | Why It Makes the List |
|---|---|---|
| Trigger | Apex Tactical Action Enhancement | Fixes the M2.0’s one real weakness — the trigger |
| Match barrel | Apex Tactical | Tighter groups and a drop-in accuracy bump |
| Night sights | Night Fision | Bright tritium, co-witness ready, holds zero |
| Red dot optic | Holosun 507C X2 | The value benchmark dot for the OR slide |
| Weapon light | Streamlight TLR-7 | Slim 500-lumen light for duty and home defense |
| Magazine | S&W factory | Reliable spare capacity, straight from the maker |
| Magazine extension | Tyrant CNC | Adds rounds and a flared base for competition |
| Holster | Molded IWB Kydex | Comfortable carry with a clean, consistent draw |
Best Trigger: Apex Tactical Action Enhancement
The M2.0’s factory trigger improved on the original M&P but is still the part owners most want to upgrade. Apex Tactical is the name in M&P triggers, and their Action Enhancement Trigger and kits deliver a lighter, smoother pull with a crisper, more tactile reset while keeping the gun’s safeties intact. It is the single upgrade that most changes how the M2.0 shoots — make it first.
Best Match Barrel: Apex Tactical
A match-grade drop-in barrel is the easy accuracy upgrade. Apex Tactical’s M&P barrels use a tighter chamber and better rifling than the factory tube for measurably smaller groups, and they drop in without fitting on most guns. It is an optional upgrade rather than a must-have, but a satisfying one if you shoot your M2.0 for accuracy or competition.
Best Night Sights: Night Fision
Upgrade the M2.0’s sights to a proper tritium set and you gain a fast front-sight focus in daylight and a glowing aiming point at night. Night Fision’s sights are bright, durable, and offered in suppressor and optic co-witness heights, so they still work if you add a red dot. It is a cheap upgrade that pays off every time the light gets low.
Best Red Dot Optic: Holosun 507C X2
The M2.0 optics-ready (OR) slide is built for a red dot, and adding one is the biggest hit-probability upgrade you can make. The Holosun 507C X2 is the value benchmark: a rugged open reflex with shake-awake, a multi-reticle system, a solar backup, and years of battery life. Confirm your slide’s cut and use the correct adapter plate, then co-witness it with suppressor-height irons for a backup.
For more optic options and how to choose, see our best red dots for concealed carry guide.
Best Weapon Light: Streamlight TLR-7
A duty or home-defense M2.0 needs a light. The Streamlight TLR-7 is the slim-body standard at 500 lumens, with a compact head that clears most holsters, ambidextrous switching, and a price that undercuts the SureFire alternative without giving up reliability. Buy a holster molded for a light-bearing gun once you mount it.
Best Magazine: S&W Factory
Full-size M2.0 magazines hold 17 rounds, and you should own several. Smith & Wesson factory magazines are reliable and available in flush and extended options across the full-size and compact models. Stock up so you always have a fresh reload for carry, duty, or a long range day.
Best Magazine Extension: Tyrant CNC
Shooting the M2.0 in competition or want a little more capacity and a better grip on the reload? A Tyrant CNC magazine extension adds rounds and a flared, positive base to your factory mags without hurting reliability. It is a favorite for USPSA and range use where a few extra rounds and faster seating matter.
Best Holster: Molded IWB Kydex
Whatever role your M2.0 plays, the right holster makes it work. A molded IWB Kydex holster made for the M&P gives you comfortable concealment, solid retention, and a clean, consistent draw. Match it to your exact configuration — bare gun, light-bearing, or optics-cut — and skip the universal holsters that fit nothing well.
How to Prioritize Your M&P 2.0 Build
The M2.0 is a great gun out of the box, so upgrade in the order that fixes its weak points and adds capability:
- An Apex trigger first. It addresses the M2.0’s one real shortcoming and changes how the whole gun shoots.
- Sights. Cheap, easy, and they work when the light is bad.
- A red dot if you have the OR slide — the biggest hit-probability gain once you learn to find the dot.
- A light for any gun with a defensive role.
- A match barrel, magazines, extensions, and a holster to round out an accuracy or competition build.
Want the background on the gun first? Read our Smith & Wesson M&P9 M2.0 review, then the Sig P320 vs M&P 2.0 and Glock vs M&P comparisons. See how it fits the wider field in our best full-size 9mm pistols roundup, and feed it quality 9mm ammo.
Frequently Asked Questions
What is the best upgrade for an M&P 2.0?
An Apex Tactical trigger. The M2.0 improved on the original M&P but the trigger remains the part owners most want to upgrade, and Apex is the recognized name for M&P triggers, delivering a lighter, smoother, crisper pull while keeping the safeties intact. After that, sights and, on the OR slide, a red dot are the highest-value upgrades.
Is the M&P 2.0 optics ready?
Many versions are. Smith & Wesson offers the M2.0 in optics-ready (OR) configurations with a cut slide and adapter-plate system that accepts common red dots such as the Holosun 507C, Trijicon RMR, and Leupold DeltaPoint Pro. Non-OR slides require machining to mount an optic. Check your specific model before buying a dot.
Do Apex parts fit both the original M&P and the M2.0?
Apex makes distinct parts for the original M&P and the M2.0 because the fire-control and trigger geometry changed between generations. Always select the version listed for your exact model — original M&P or M2.0 — and the correct frame size, and confirm caliber where it matters.
How many rounds does an M&P 2.0 magazine hold?
The full-size M&P9 M2.0 uses 17-round magazines, with 10-round versions for restricted states and extended options available. Compact and subcompact M2.0 models use shorter magazines with lower flush capacities. Aftermarket base pads and extensions from makers like Tyrant CNC can add a few rounds.
Can I install M&P 2.0 upgrades myself?
Most are drop-in: triggers, barrels, sights (a sight pusher helps), magazines, extensions, lights and holsters install at home with basic tools. Fitting an optic to a non-OR slide requires machining by a gunsmith, but the upgrades on this list are designed to be straightforward owner installs.
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