The Rex Zero 1S is one of the highest quality pistols and best values in today’s handgun market. The Rex is an all metal, hammer fired pistol that has passed extensive Slovenian military/NATO based tests, and has a lifetime warranty. The Rex allows the user to operate the gun in their choice of modes; either DA/SA or SAO. AREX is an ISO90001 certified company. Their expertise shows in the exceptional fit and finish of this gun. The frame is T7075-T6 aluminum with full-length slide rails, dust cover picatinny rail, ambi-safeties, and ambi-magazine releases. The slide is cut from solid bar stock, coated to protect against wear and corrosion, and has forward cocking serrations. The steel sights can be replaced with any after-market dovetail sights. AREX makes their own magazines, and they are of superb quality. They contain a unique progressive rate spring, are easy to disassemble for cleaning, are coated inside and out for corrosion resistance, and the spring is attached to the follower (can be removed).

Rex Zero 1S Standard Size 9mm 17 Round Pistol Specifications

  • Can be operated either “cocked & locked” or safely de-cocked for DA/SA operation. External safety operates in either configuration
  • Ambi- safety and magazine release
  • The slide-stop also serves as the de-cocker
  • Hard anodized T7075 aluminum frame made from solid bar stock with steel locking block insert
  • Nitrocarburized steel slide made from solid bar stock
  • Forward cocking serrations
  • 1 piece cold hammer forged barrel made from solid bar stock and Nitrocarburized
  • Loaded chamber indicator
  • Full length slide rails
  • Picatinny railed dust cover
  • Large trigger guard for use with gloves
  • High profile white dot steel dovetail sights
  • Approved for all commercial SAAMI specification +P ammunition
  • Ships with two 17 round magazines.

Rex Zero 1S Standard Size 9mm 17 Round Pistol Features

Caliber: 9mm Luger (9x19mm)

Operating Principle: Short recoil

Action Type: Modified Browning linkless locking system

Trigger System: Single- and Double-action, Hammer fired

Length: 7.7 in / 195 mm

Barrel Length: 4.3 in / 108 mm

Height: 5.7 in / 144 mm

Width (slide): 0.98 in / 25 mm

Width (frame): 1.1 in / 27 mm

Width (safety levers): 1.46 in / 37 mm

Weight (without magazine): 29 oz / 826 g

Weight (empty magazine): 3 oz / 85 g

Magazine Capacity: 17

Trigger Pull SA: 5.5 lb / 2,5 kg

Trigger Pull DA: 13 lb / 6,0 kg

Trigger Travel DA: 0.5 in / 13 mm

Reset Travel SA: 0.16 in / 4 mm

Barrel Profile/Twist: 6 grooves, right-hand twist

Barrel Twist Rate: 9.8 in / 250 mm

Limited Lifetime Warranty for the original retail (commercial/civilian) purchaser.


REX zero 1 pistol has several independent safety features that guarantee safe operation under most unfavourable circumstances. The Firing Pin Safety catch acts as a main drop safety catch which is disengaged only when the trigger is fully depressed. The hammer can be lowered safely by a dual-purpose lever located on the left side of the frame in front of the ambidextrous manual safety catch. The safety catch can be engaged with the hammer in either a cocked or decocked position. When put on “safe” it disconnects the trigger bar from the sear. The safety catch can be intuitively disengaged with the thumb in a down-sweeping motion. A loaded chamber indicator both visually and tactilely declares the presence of a round in the chamber.



REX zero 1 semi-automatic pistol operates on the modified Browning short recoil principle with the enlarged back portion of the barrel locking into the slide’s ejection port (the 7.65 mm model is blowback operated). Pushing down on the dual-purpose slide stop/decocker will first release the slide (if locked to the back) and then safely lower the hammer. The firing mechanism with exposed hammer operates is classical single and double action modes with the hammer remaining cocked after each cycling of the slide. The single action trigger breaks crisply at 2.5 kg (5.5 lbs) and resets with a short travel of 3 mm. the smooth and long double action 6 kg (13 lbs) trigger pull is engineered with safety in mind. The magazine is released with an ambidextrous button at the base of the trigger guard.


All key components: the slide, the frame as well as the barrel are made from solid bar stock. The slide is machined from chromolly steel and light but though 7075 aircraft aluminum alloy is used for the frame. The heart of the pistol is a precision machined barrel, cold hammer-forged from one piece of chromolly steel. The slide and barrel undergo a proprietary nitro carburizing surface protection process that provides high surface hardness and extreme corrosion resistance for extended use or storage in hostile environments. Hard anodizing is used on the aluminum frame for its abrasion resistance. The barrel unlocking block with an angular ramp is also a solid steel piece inserted in the frame.


The entire design process was performance driven and oriented towards long-term durability. The materials and technologically advanced manufacturing process will ensure cost effectiveness and an extremely long life cycle. An internal extractor was chosen since it allows for a closed slide design and renders the same or better reliability with fewer parts. The long dustcover adds to the rigidity of construction and incorporates full-length slide guides and an extended accessory interface (MIL-STD-1913). The large trigger guard was conceived for use with various gloves. The iron sights with contrasting white dots enable quick target acquisition. The pistol can be safety disassembled without any tools – the slide must be fully retracted and no trigger pull is necessary.

FFL Address Required Yes
Shipping Class
Handgun Yes

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Arex Rex Zero 1S Standard

  • Brand: Arex
  • Product Code: Rex Zero 1S
  • Rating:
  • $618.00

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Tags: patreon, arex, rex, rex zero 1s, rex zero, standard