AREX Delta M Gen2 9mm 15+1 Optic-Ready Black Frame

Description

The AREX Delta M Gen2 is a compact, striker-fired 9mm pistol built for shooters who demand reliability, modularity, and optic-readiness straight out of the box. This arex delta m gen2 9mm 15+1 optic-ready black frame ships with two 15-round magazines, five mounting plates for popular mini red dots, and a threaded barrel for suppressor or compensator use. It arrives ready to run, with no aftermarket fitting required.

Manufacturer	AREX
Model	Delta M Gen2
Material	Black polymer frame, black nitride slide
Compatibility	9mm Luger; fits most miniature red dots via included plates
Finish	Black nitride slide, black polymer frame
Weight	22.9 oz (unloaded, per manufacturer specs)
Condition	New

Key Features

• Optic-Ready Slide with Five Mounting Plates – Why it matters: You can mount a red dot without sending the slide to a machine shop. The included plates cover Shield RMS, Docter/Noblex, C-More, Trijicon RMR, and Leupold DeltaPoint Pro footprints, so you can zero your preferred dot in minutes.
• Modular Frame with Removable Serialized Front Insert – Why it matters: The serial number is only on the front insert, not the whole frame. This means you can swap grip modules or rear inserts without an FFL transfer, saving you time and money if you want to change ergonomics or color.
• Ambidextrous Slide Stop and Reversible Magazine Catch – Why it matters: Lefties and righties can run the gun without hunting for controls. The slide stop is accessible from both sides, and the mag release can be swapped in seconds for a true ambi setup.
• Threaded Barrel with Factory Thread Protector – Why it matters: You can attach a suppressor, compensator, or muzzle brake without buying a new barrel. The 1/2×28 threads are standard, so aftermarket accessories fit without adapters.
• Black Nitride Slide with Front and Rear Serrations – Why it matters: The nitride finish resists holster wear and corrosion, while the aggressive serrations give you a positive grip for press checks or slide manipulations with sweaty or gloved hands.

Who It’s For

This pistol is built for concealed carriers who want a compact 9mm with a red dot, competition shooters who need a reliable backup gun with a threaded barrel, and anyone who appreciates a modular platform that lets them swap grip inserts without a trip to the gunsmith. It also suits left-handed shooters who struggle with standard right-side-only controls.

Pros and Cons

Pros: True ambidextrous controls; five optic plates included; threaded barrel standard; modular frame with serialized front insert; nitride slide for durability; 15+1 capacity in a compact package.

Cons: The trigger pull weight is factory-set at 5.5 lbs and feels a bit gritty out of the box—expect a break-in period of 200-300 rounds before it smooths out. Also, aftermarket holster support is still building, so you may need to check compatibility before buying leather or Kydex.

Comparison

Feature	AREX Delta M Gen2	Zev Technologies OZ9C	Agency Arms Syndicate
Caliber	9mm	9mm	9mm
Capacity	15+1	15+1	15+1
Optic Ready	Yes, 5 plates included	Yes, RMR footprint only	Yes, RMR/SRO footprint only
Threaded Barrel	Yes, factory 1/2×28	No (optional)	No (optional)
Ambidextrous Controls	Slide stop + reversible mag release	Ambidextrous slide stop only	Ambidextrous slide stop only
Modular Frame	Yes, removable serialized front insert	Yes, full chassis system	No, one-piece frame
Price	$525	$1,200+	$1,000+

The AREX Delta M Gen2 undercuts both competitors in price while offering a threaded barrel and five optic plates out of the box. The Zev OZ9C has a more refined trigger and full chassis, but costs over twice as much and doesn’t include a threaded barrel. The Agency Syndicate is a solid duty gun but lacks the modular frame and ambi controls of the AREX.

FAQ

What optic footprints does the AREX Delta M Gen2 support?

The included five mounting plates cover Shield RMS, Docter/Noblex, C-More, Trijicon RMR, and Leupold DeltaPoint Pro. You can also mount a Holosun 407C/507C using the RMR plate. The slide is cut to accept plates, so you don’t need to modify the slide.

Is the AREX Delta M Gen2 compatible with Glock holsters?

No, the AREX Delta M Gen2 has a different trigger guard shape and slide profile than Glock models. You need a dedicated AREX Delta M holster. Several Kydex makers now offer them, but always confirm fit before ordering.

Can I swap the grip module without an FFL?

Yes. The serial number is only on the removable front insert, not the frame. You can swap the rear grip insert and the main frame module yourself without going through a dealer. AREX sells replacement inserts in different colors and textures.

What does the threaded barrel measure?

The factory barrel has 1/2×28 threads and comes with a thread protector installed. This is the most common thread pitch for 9mm suppressors and compensators, so most accessories will fit without adapters.

How does the trigger feel out of the box?

Per AREX specs, the trigger pull is 5.5 lbs. It has a short take-up and a crisp break, but the stock trigger can feel a bit gritty. After 200-300 rounds, it smooths out noticeably. Some shooters polish the sear engagement surfaces for an even lighter pull.

According to AREX, the Delta M Gen2 uses a patented modular frame design that allows the user to replace the grip without affecting the serialized fire control unit. This is a feature typically found on pistols costing twice as much. With over 15,000 units sold in the U.S. since launch, the Delta M Gen2 has proven itself as a reliable, budget-friendly alternative to custom shop guns.

✓ Nationwide delivery (all 50 states)
✓ Ships 1-2 business days
✓ 30-day returns on unfired, unmodified firearms
✓ Secure checkout with encrypted payment processing

Browse more options in our Semi Auto Handguns category or check out Optic-Ready Pistols. Also see our Compact 9mm selection.

Last updated: April 2026