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Learn More About The Enigma OS - Standard

Enigma OS – Standard

Bring your own holster.

The open-source Enigma platform. Pair it with a compatible holster of your choice for the broadest gun support in the line.

Shop OS – Standard Open the Fit Guide
Enigma OS Standard.
If you read one thing

The OS – Standard does not include a holster. You provide a compatible one. It's the right choice when your gun isn't on the Express list, or when you prefer a specific holster brand or model. Confirm your holster in the Compatibility tab before buying.

You choose the holster

No holster included. Pick a compatible one, matched to your firearm.

Beltless

The system carries its own structure. Wear whatever you want.

Open source

Works with compatible holsters from PHLster and other makers, not just the Express list.

Who it's for

People whose firearm isn't on the Enigma Express list, or who want a specific holster brand or model.

People comfortable selecting a holster with the Fit Guide and doing a bit of assembly.

How it works

Your body is the foundation, not your pants.

Most holsters clip to your waistband, which limits placement to where your pants ride. The Enigma is worn directly on your body, separate from your clothing.

Enigma OS Standard worn.

What changes

Your pants are no longer the anchor. Place the gun where it conceals best, and it stays put when you move.

What stays the same

A secure Kydex holster gives crisp retention, trigger protection, and a repeatable draw.

What "Open Source" means +
The OS model accepts compatible holsters from PHLster and other manufacturers. You're not locked into one holster, you choose the one that fits your firearm and meets the compatibility requirements. The Fit Guide helps you find what works.
Is it just a bellyband? +
No. A bellyband relies on compression and friction. The Enigma is a chassis system with a secure Kydex holster, so you get firm retention, consistent placement, and a stable draw without squeezing into elastic.

What's included

The platform and hardware. Not the holster.

Holster not included, by design. Use the Fit Guide to find a compatible holster before purchasing the Enigma OS.
Everything included with the Enigma OS Standard (holster not included).

Faceplate / chassis

The heart of the system. Variable stiffness and anti-slip texture for performance.

System belt

Anchors the system. Fits up to 46" (64" with the Sport Belt).

Leg leash

Keeps the holster from riding up on the draw. Two options, fits thighs up to 36".

Fidlock buckle

One-hand magnetic on and off. An optional Reduced Size Buckle is available.

Mounting hardware

All the screws and hardware to mount a compatible holster. Assembly required.

You provide

A compatible IWB holster with a ModWing, Dark Wing, or RCS VG2 and the correct hole spacing.

Up to 46"Waist belt (64" with Sport Belt)
Up to 36"Leg leash thigh
Red dotOptics compatible

Compatibility

The holster is the make-or-break piece.

Not every holster works with the OS platform. Yours must mount through a compatible concealment wing with the correct hole spacing and grip clearance. Confirm it with the Fit Guide before you buy.

Three compatible wings: ModWing, Dark Wing, RCS VG2. Holes spaced 0.625 inch center to center.

Three compatible wings: ModWing, Dark Wing, RCS VG2. Mounting holes spaced ⅝" (0.625") center to center.

Use OS – Standard when

  • Your firearm isn't on the Express list
  • You want a specific holster brand or model
  • No weapon light or attached laser

Consider Express instead when

  • Your firearm is on the Express list
  • You want pre-assembled and ready to wear
  • You prefer the simplest starting point
Holster requirements (full checklist) +
  • Two mounting holes directly below the trigger guard, ⅝" (0.625") center to center
  • A ModWing, Dark Wing, or RCS VG2 concealment wing
  • Enough clearance between the top of the wing and the grip to get a full firing grip
  • Fully encloses the slide (no open-top or trigger-guard-only)
  • No sidecar, hybrid (leather/fabric backer), or light-bearing holsters
Recommended holster brands +
PHLster Skeleton and Pro. Henry Holsters Flint and Flint Compact (also pre-assembled Enigma packages). JM Custom Kydex Quick Ship and custom shells. Haven Defense Co, KSG Holsters, Smoky Mountain Concealment, Dark Star Gear, Concealment Express / Rounded. PHLster isn't affiliated with other makers; see the Fit Guide for links and notes.
Do not modify your holster or faceplate. Don't drill, cut, or heat-form anything to make it fit. It voids the warranty and can cause a dangerous failure. If a holster isn't compatible, get one that is. See safety information.

Getting started

Assembly required, instructions included.

You'll mount your holster to the faceplate, route the belt, and dial everything to your body. More involved than the Express, but the instructions walk you through it.

Live Enigma Tune-Up Class
Have your holster in hand first. Confirm it has a compatible wing, the right hole spacing, and grip clearance before you begin. Use the Fit Guide.

Your first steps

  1. Read the safety information. This is critical. Do it first.
  2. Confirm holster compatibility. Use the Fit Guide. Don't skip this.
  3. Follow the assembly instructions. Written (left and right hand) and video both available.
  4. Set the leg leash. No tighter than a pair of briefs.
  5. Test: stand, sit, walk. Record yourself moving to check concealment.
Fixed vs. adjustable retention +
Fixed-retention holsters are easier to mount. If yours has adjustable retention, you may need a Fixed Retention Kit to install it safely. The Fit Guide notes which brands require this.

Concealment

Concealment is a skill.

The Enigma gives you the tools. A few core principles get you there faster. With a larger setup, they matter even more.

Find your sweet spot

Your body has valleys where the gun tucks in rather than sticks out.

Grip rotation & tuck

The grip is what prints. Rotating it toward your body and tucking it in is the key.

The poke and check

Poke the grip through your shirt. If it moves easily, you need more rotation or tuck.

Wedges

A wedge pushes the muzzle out and tucks the grip in, improving comfort and concealment.

Learn more

The keel principle

A longer holster can be more comfortable and concealable. Extra muzzle length keeps the gun from tipping out.

Learn more

Clothing

Drape beats cling. Patterns and texture break up outlines. Avoid dri-fit.

Enigma OS – Standard Shop OS – Standard Open the Fit Guide
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