Grex Micro Spray Gun Set

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These are the Tritium.TS and Tritium.TG at heart, and bundled with all the essential accessories to make it work and play like a mini spray gun. Along with the heavy duty, ready for anything case, the MF.TS and MF.TG are ready for almost anything you throw its way. Reach in to the tightest areas for that perfect finish job. Precision spraying, spot repairs and touch-ups are quick and easy with minimal overspray. This gun even evolves with your needs with plenty of accessories and attachments to accommodate all your applications.

Grex Tritium airbrushes represents our premium line of double action pistol style trigger airbrushes. Their intuitive easy-to-use design appeals to beginners, yet their fine detail control and comfortable operation makes them appeal to professionals as well.

Grex Tritium airbrushes are a comprehensive line that can accommodate to your airbrushing preferences - top or side gravity, left or right hand, big or small reservoir, fine or wide spraying. These are feature packed airbrushes and you'll find the same reliable, high performance quality you've come to expect from any Grex product.

Grex Tritium airbrushes come in two forms - Tritium.TG, a top gravity version and Tritium.TS, a side gravity version. Each version is available in three different models with either a 0.2mmm, 0.3mm, 0.5mm or 0.7mm nozzle size.

Other than feed type, features of the Tritium.TG and Tritium.TS are the same. Which one to choose is really a matter of preference. See the advantages of each versions' feed type by clicking here.

The nozzle size on any of the Tritium airbrushes can be changed with optional conversion kits. See side panel for the different model numbers, contents of the airbrush sets and information on the Nozzle Conversion Kits.

Advantages to Tritium.TG Top Gravity Feed:
Interchangeable Reservoirs:
Top mount reservoirs are detachable so you can choose the perfect reservoir type and size for your project. Set includes a 2mL (1/20 fl. oz.) top cup w/ lid, a 7mL (1/4 fl. oz.) top cup w/ lid and a 15mL (1/2 fl. oz.) top cup w/ lid.

Integrated Paint Cup:
A small built-in paint reservoir - easy to clean and perfect for minute amounts of paint.

Optimal Paint Flow:
The shape of the top gravity cups are designed for optimal paint flow even when the airbrush is held at large angles. It's a streamlined design so no paint gets collected in the cup.

Balanced Design:
In-line top gravity cups directly above the airbrush offers balanced handling.

Advantages to Tritium.TS Side Gravity Feed:
Interchangeable Reservoirs:
Side mount reservoirs are detachable so you can choose the perfect reservoir type and size for your project. Set includes a 7mL (1/4 fl. oz.) side cup w/ lid, a 15mL (1/2 fl. oz.) side cup w/ lid and a side siphon attachment w/ 30mL bottle.

360° Adjustable Reservoirs:
Side reservoirs are screwed on to the airbrush and then secured in position with a lock nut. This allows the reservoir to be adjusted to any angle so that paint flows correctly regardless of the angle and position you're working in.

Left or Right Mount:
Side reservoirs can be mounted on either side of the airbrush to accommodate both left and right hand users.

Clear Line of Sight:
Side reservoirs provide a clear view of your work when you're holding your airbrush perpendicular to your body.


  • Easy-to-use "pull" trigger controls both air and paint.
  • Cutting edge design for precise control of fine detailed work.
  • Internally mixed media for fine atomization.
  • Ergonomic pistol handgrip with a textured surface for a firm comfortable hold.
  • Patented Quick-Fit™ needle caps are quick and easy to setup and remove.
  • Quick-Fit™ crown cap allows detailed spraying close to work surface.
  • Rear handle Quick-Fit™ needle cap storage for quick and convenient access.
  • Interchangeable side mount reservoirs - use the perfect reservoir for your project.
  • Left of right mount side reservoir to accommodate left and right hand users.
  • 360 degree adjustable reservoirs allows you to work in any position and angle.
  • Side reservoirs allow a straight line of sight to where you're spraying.
  • Preset adjustment knob for precise paint volume control.
  • Replaceable solvent proof teflon seals allows use of all media.
  • Includes 2 reservoirs with lids; 15mL (1/2 fl. oz.) and 125mL (4 fl. oz.)
  • Precisely machined stainless steel nozzle and needle.
  • New nozzle design for improved air flow and durability.
  • Micro fan spray cap offers efficient coverage with minimal overspray.
  • Included round spray cap transforms gun into a super detailed airbrush.
  • Durable heavy nickel chrome plated housing.
  • Convenient to clean design for ease of maintenance.
  • Short passageway from cup to nozzle for a responsive feel.
  • Convert to different nozzle sizes with optional kits.
  • Bundled with a 10' nylon braided hose, G-MAC, 1/4"F adapter & airbrush carrying case.
  • Available 0.5mm or 0.7mm nozzle size.


  • Type: Double Action Pistol Style
  • Fluid Nozzle: 0.3mm, 0.5mm, 0.7mm (sold separately)
  • Feed Type: Top Gravity
  • Fluid Capacity: 15mL (1/2 fl. oz.) and 125mL (4 fl. oz.)
  • Weight: 180g (6.4 oz.)
  • Length: 159mm (6.25")
  • Oper. Pressure: 5 ~ 80psi (0.34 ~ 5.52bar)
  • Air Consumption: Up to 0.6 cfm @ 30 psi


  • Double Action Pistol Style Trigger:
  • An intuitive, easy-to-use, and comfortable trigger system that offers fine control from detailed to wide spraying. Two stage operation; first half of trigger motion controls the air and the second half controls the paint volume.
  • Ergonomic Handgrip:
  • Pistol style handgrip with a textured surface offers a firm and comfortable grip. It helps minimize hand fatigue and cramping and allows individuals with chronic finger or hand problems to airbrush.
  • High Performance Nozzle Design:
  • Fine thread screw-in design for precise nozzle centering. Stainless steel construction with large diameter threads for extra durability. Precision machined for optimal paint flow through nozzle and optimal air flow around nozzle.
  • High Performance Needle Design:
  • Long taper at needle tip provides superior fine paint volume control. Precision machined from stainless steel for a durable matched fit to the nozzle.
  • Pre-set Adjustment Knob:
  • Allows for precise paint volume control and adjustments. Dial in the Pre-set Knob to limit the paint volume for an easy way to create consistent spray patterns. Or dial it all the way back for full trigger control.
  • Quick-Fit™ Needle Caps:
  • Patented design that makes it easy to take off and easy to put on yet still securely stays on when you need it to protect the airbrush needle tip. Available as a standard and crown type cap.
  • Quick-Fit™ Crown Needle Cap:
  • The crown version of our Quick-Fit™ needle cap. Cut-away sides allows improved air flow when spraying close to the work surface so that fine detailed patterns can be achieved.
  • Quick-Fit™ Needle Cap Storage:
  • Convenient storage and quick access for either of your Quick-Fit™ Needle Caps when you're not using them. Easy to take off and easy to put on, but they're held on securely until you need them.
  • Nozzle Conversion Kits:
  • Optional nozzle conversion kits allow you to modify any Tritium airbrush to a 0.2mm, 0.3mm, 0.5mm or 0.7mm nozzle size. See side panel for details.
  • Internal Mix Design:
  • provides fine atomization for a smooth finish.
  • Solvent Proof Teflon Seals:
  • are replaceable and accepts most paint media.
  • Chrome Plated Housing:
  • provides durability and ease of cleaning.
  • Short Paint Passageway:
  • from reservoir to nozzle tip for a responsive feel.


In The Box

  • Titrium Airbrush
  • Round Spray Cap
  • Fan Spray Cap
  • 1/8"M x 1/4"F Adapter
  • 10' Nylon Braided Air Hose
  • G-MAC Quick Connect and Micro Air Control Valve
  • 125mL Cup w/Lid
  • 15mL Cup w/Lid
  • Carrying Case



Please note, Aircraft Spruce Canada's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce Canada assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.