Description
The AREX Delta X Tact Gen2 9mm 4.60″ Threaded Optic Cut 17+1 is a striker-fired, modular service pistol engineered for shooters who demand adaptability and precision. This optic-ready platform ships with five mounting plates for miniature red dots, a threaded barrel for suppressor or compensator use, and two 17-round magazines. Built around a removable fire control unit and interchangeable frame inserts, the Delta X Tact Gen2 lets you tailor grip profile and trigger feel without serialized part swaps. At $545, it delivers a rugged duty-grade build with suppressor-height sights and aggressive slide serrations for positive manipulation in any condition.
| Manufacturer | AREX |
|---|---|
| Model | Delta X Tact Gen2 |
| Material | Polymer frame, steel slide |
| Compatibility | Miniature red dot sights (RMR, Docter, C-More, Leupold, Shield pattern) |
| Finish | Black nitride slide, black polymer frame |
| Weight | 24.5 oz (unloaded, per manufacturer specs) |
| Condition | New |
Key Features
- Removable Fire Control Unit (FCU) — The serialized FCU drops out for transfer or replacement, letting you swap frames, grip modules, and trigger components without a new background check. This modularity future-proofs the gun for evolving regulations or personal preferences.
- Five Optic Mounting Plates — Included plates cover RMR, Docter/Noblex, C-More, Leupold DeltaPoint Pro, and Shield RMS patterns, giving you a low-profile, secure mount for nearly any micro red dot on the market.
- Threaded 4.60″ Barrel (1/2×28) — Factory-threaded for direct suppressor attachment or muzzle devices, with a thread protector included. The barrel is cold-hammer-forged for longevity and accuracy.
- Interchangeable Grip Inserts — Front and rear frame inserts swap to adjust palm swell and backstrap contour, accommodating hand sizes from small to extra-large with a single frame.
- Aggressive Slide Serrations — Deep, sharp serrations at front and rear provide non-slip purchase for press checks or slide manipulations with wet, gloved, or compromised hands.
Who It’s For
This pistol fits shooters who want a duty-grade 9mm with optic-readiness and suppressor capability out of the box, without paying custom-shop prices. It appeals to competition shooters needing fast dot acquisition, home defenders who suppress their handgun, and service pistol users who value modularity for grip and trigger tuning. The removable FCU also attracts owners in restrictive jurisdictions who want to own one serialized component and swap frames as laws change.
Pros & Cons
- Pro: Modular FCU and grip inserts rival systems costing twice as much. Con: Aftermarket support (holsters, triggers, barrels) is still growing, so current options are fewer than for Glock or SIG.
- Pro: Threaded barrel and five optic plates included at this price point. Con: The trigger reset is audible but slightly longer than high-end competition triggers — acceptable for duty, not match-level.
- Pro: Suppressor-height steel sights co-witness with most red dots. Con: Factory magazines lack witness holes beyond 10 rounds, making ammo checks less intuitive.
How It Stacks Up
| Feature | AREX Delta X Tact Gen2 | Zev Technologies OZ9 | Agency Arms Agency Premier |
|---|---|---|---|
| Price | $545 | $1,800+ | $2,400+ |
| Optic Plates Included | 5 plates | 1 plate | 1 plate |
| Threaded Barrel | Factory (1/2×28) | Optional ($200) | Optional ($350) |
| FCU Modularity | Removable FCU, grip inserts | Removable FCU, grip module | Fixed frame, no FCU |
| Weight (unloaded) | 24.5 oz | 22.0 oz | 25.0 oz |
FAQ
Does this pistol come with suppressor-height sights?
Yes. The AREX Delta X Tact Gen2 ships with steel suppressor-height sights that co-witness with most miniature red dots when using the included mounting plates. The front sight is fiber-optic for fast acquisition.
Can I use standard Glock 17 holsters with this gun?
Not directly. The Delta X Tact has a different trigger guard shape and slide profile than a Glock 17. Use holsters specifically molded for the AREX Delta series. Brands like Red Hill Tactical and Knightfall Customs offer compatible options.
What thread pitch is the barrel?
The barrel is 4.60″ long with a 1/2×28 thread pattern, the most common for 9mm suppressors and compensators. A thread protector is included.
How do I swap the grip inserts?
Remove the slide, drift out the two roll pins securing the front and rear inserts, then slide in the new inserts. No special tools required beyond a punch and hammer. The process takes under 5 minutes.
What magazines are compatible?
The pistol uses proprietary AREX 17-round steel magazines. They are available in 17- and 21-round capacities. No cross-compatibility with Glock or SIG magazines.
Last updated: April 2026
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Browse more options: Semi Auto Handguns | Optic Ready Pistols | Suppressor Ready
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