Sig Sauer P320-MAX 2.0 9mm 5 in ROMEO3MAX (4)21rd
- Firearms ship to the FFL dealer you choose, in any state
- Free shipping on orders over $99 · ships in 1–2 business days
- 30-day returns on unused parts and accessories
About this product
Sig Sauer P320-MAX 2.0 9mm 5 in ROMEO3MAX (4)21rd
The Sig Sauer P320-MAX 2.0 9mm 5 in ROMEO3MAX (4)21rd is a competition-ready striker-fired pistol built with direct input from world champion shooter Max Michel. It combines a TXG tungsten-infused grip frame, a match-grade bull barrel, and a factory-mounted ROMEO3MAX red dot to deliver consistent, repeatable accuracy right out of the box.
| Manufacturer | Sig Sauer |
|---|---|
| Model | P320-MAX 2.0 |
| Material | TXG tungsten-infused polymer grip, stainless steel slide |
| Compatibility | P320 holsters and magazines (per manufacturer specs) |
| Finish | Black nitride slide, black grip module |
| Weight | 30.2 oz (empty, with optic) |
| Condition | New |
Key Features
- Tungsten-infused XFULL Grip Module — This TXG frame adds significant weight low in the hand, reducing muzzle flip and helping you stay on target for faster follow-up shots. It matters because competition shooters need every advantage to shave tenths of a second off their split times.
- Flat Skeletonized Competition Trigger — The trigger breaks cleanly at around 4.5 pounds with a short, positive reset. It matters because a predictable trigger pull builds confidence and accuracy under pressure.
- 5-Inch Match-Grade Bull Barrel — The barrel is precision-machined for tight lockup and consistent accuracy. It matters because a bull barrel adds mass at the muzzle to dampen recoil and keep the dot on target.
- Factory-Mounted ROMEO3MAX Red Dot — The ROMEO3MAX features a large 6 MOA dot and a wide field of view for lightning-fast target acquisition. It matters because a reliable, out-of-the-box optic saves you time and money on aftermarket mounting.
- Four 21-Round Magazines — You get four steel 21-round magazines, giving you plenty of capacity for extended practice sessions or competition stages. It matters because reloading less means more time focusing on fundamentals.
Who It’s For
This pistol is built for the competitive shooter—whether you’re a seasoned USPA or IDPA competitor, or a weekend warrior looking to improve your times. It’s also a solid choice for the serious bird hunter who wants a reliable sidearm for the field, or for anyone who appreciates a high-end 9mm that’s ready to run right out of the box.
Pros & Cons
- Pro: Outstanding factory trigger with a crisp break and short reset.
- Pro: Tungsten-infused grip reduces felt recoil noticeably.
- Pro: Comes with a premium red dot already mounted and zeroed.
- Con: The TXG grip is heavier than standard polymer, which may not suit shooters who prefer a lighter carry gun.
Comparison
| Feature | Sig Sauer P320-MAX 2.0 | Zev Technologies OZ9 | Agency Arms AOS G19 |
|---|---|---|---|
| Caliber | 9mm | 9mm | 9mm |
| Barrel | 5 in match bull | 4.5 in match | 4.02 in match |
| Grip Material | TXG tungsten-infused polymer | Zev aluminum grip | Polymer w/ stippling |
| Optic Included | ROMEO3MAX (yes) | No (optic-ready slide) | No (AOS cut) |
| Magazine Capacity | 21 rounds | 17 rounds | 15 rounds |
| MSRP | $1,399.99 | $1,699 | $1,499 |
FAQ
Is the ROMEO3MAX included with the Sig Sauer P320-MAX 2.0?
Yes, the ROMEO3MAX red dot sight comes factory-mounted and is included in the box with the pistol. According to Sig Sauer specs, it is pre-installed and ready for use.
Does this pistol come with extra magazines?
Yes, the P320-MAX 2.0 ships with four (4) 21-round steel magazines, giving you plenty of capacity for competition or training.
What holsters fit the P320-MAX 2.0?
Any holster designed for the Sig Sauer P320 full-size with a 5-inch barrel and optic cut will work. Many competition holsters from companies like Blade-Tech or Safariland are compatible.
Can I use the P320-MAX 2.0 for concealed carry?
While it’s possible, the full-size grip and 5-inch barrel make it better suited for competition, range use, or as a duty sidearm rather than everyday concealed carry.
Ready to Order
- ✅ Nationwide delivery (all 50 states)
- ✅ Ships 1-2 business days
- ✅ 30-day returns
- ✅ Secure checkout
Browse more options in our Semi Auto Handguns or check out Sig Sauer Pistols and Competition Pistols.
Last updated: April 2026