Understanding Tattoo Cartridge Needles: A Complete Guide for Professio

Understanding Tattoo Cartridge Needles: A Professional Guide

Tattoo cartridges changed the workflow of modern tattooing. They simplified setup, improved sanitation, and allowed artists to switch needle groupings faster than ever before.

But once you start looking at cartridges, the questions start stacking up:

What's the difference between tight liners and loose liners?
What does bugpin actually mean?
Should I run curved mags or flat mags?
What's the difference between open and closed cartridges?

If you've ever asked any of those questions, you're not alone.

At Maverick Supply Co., we talk to working tattoo artists every day. Some are veterans with decades behind the machine. Others are newer artists dialing in their setup. Either way, everyone wants the same thing:

Reliable tattoo cartridges that perform consistently and make tattooing easier.

This guide breaks down the most common tattoo cartridge needle configurations, what they're used for, and how to choose the right grouping for your style.

What Makes a Quality Tattoo Cartridge?

Before we get into needle groupings, it helps to understand what separates a professional cartridge from cheap knockoffs.

All Maverick cartridges except our Bugpins Curved mags (.030's) are built with:

#12 long taper polished needles (.35mm) for consistent ink flow
Medical-grade plastic housings for durability
Precision needle groupings for reliable performance
Silicone membrane systems to prevent backflow contamination
EO gas sterilization for medical-grade safety

These details matter because when your tools work correctly, you spend less time fighting equipment and more time focused on tattooing.

Tight Round Liners (TRL) — Precision Line Work

Tight round liners are designed for crisp, controlled linework.

These configurations are ideal for:

• Fine line tattoos
• Script lettering
• Geometric tattoos
• Detailed illustrative work
• Stippling and dotwork

Because the needles are grouped tightly together, they deliver maximum precision and minimal spread.

Many artists reach for tight liners when they need absolute control over detail.

👉 Shop Tight Round Liner Cartridges

Loose Round Liners / Round Shaders

Loose liners give you a slightly softer spread compared to tight liners.

They're commonly used for:

• Bold traditional outlines
• Small shading areas
• Portrait detailing
• Small color packing zones

Some tattooers also use loose liners as micro round shaders, especially in black and grey realism.

👉 Explore Loose Round Liner / Shader Cartridges

Curved Magnum Cartridges (COM / CCM)

Magnum cartridges are the workhorse of tattooing.

If you're shading large areas, blending gradients, or packing color, this is where mags shine.

Curved mags are particularly popular because the arched needle formation reduces skin trauma while distributing ink smoothly.

Two housing options exist:

Curved Open Mag (COM)

Open housing cartridges allow you to see the needles while working, which many artists prefer for visibility and control.

👉 Shop Curved Open Magnum Cartridges

Curved Closed Mag (CCM)

Closed cartridges cover the needles with the housing.

Some artists prefer this style simply because it reduces visual distraction during tattooing.

Functionally, the needles perform the same — it's purely personal preference.

👉 Shop Curved Closed Magnum Cartridges

Flat Magnum Cartridges (FOM)

Flat mags are built differently than curved mags.

Instead of an arc, the needles are arranged in a straight line.

This creates a harder edge when packing color, making them ideal for:

• Traditional tattoos
• Neo traditional
• Bold color saturation
• Packing color near linework

Flat mags excel when you need strong color saturation in tight areas.

👉 Shop Flat Open Magnum Cartridges

Bugpin Magnum Cartridges (BP-CM / BP-FM)

Bugpins use smaller diameter needles (.30mm) compared to standard #12 needles.

This allows for softer ink flow and more delicate shading.

Bugpins are commonly used for:

• Black and grey realism
• Smooth portrait shading
• Soft gradients
• Fine detail shading

Many realism artists prefer bugpins because they allow slow, controlled ink buildup without overworking the skin.

👉 Explore Bugpin Magnum Cartridges

Hollow Round Liners (HRL)

Hollow liners are another specialized configuration designed to deliver clean, consistent linework with excellent ink flow.

These cartridges are often used for:

• Bold outlines
• Lettering
• Traditional tattoo styles

Because of their construction, they can carry more pigment through the needle grouping, making them great for solid lines.

👉 Shop Hollow Round Liner Cartridges

Choosing the Right Tattoo Cartridge

Every tattoo style requires different tools.

A typical professional setup might look like this:

Line Work

Tight Round Liner (TRL)
Hollow Round Liner (HRL)

Black & Grey

Bugpin Curved Mag (BP-CM)

Color Packing

Flat Magnum (FOM)

Soft Shading

Curved Magnum (COM / CCM)

There's no single perfect cartridge — the best artists understand when to use each configuration.

Why Tattoo Artists Choose Maverick Cartridges

Maverick Supply Co. is tattooer-owned and artist-driven.

This isn't a boardroom brand guessing what artists want. It's built by people who actually tattoo every day.

Our cartridges are designed for:

• Consistent needle groupings
• Reliable ink flow
• Backflow protection
• Long session comfort
• Professional sterilization standards

When you open a Maverick box, you know exactly what you're getting.

No surprises.
No inconsistency.
Just tools that work.

👉 Browse the Full Maverick Tattoo Cartridge Collection

Final Thoughts

Tattoo cartridges are more than just disposable tools — they're extensions of the artist's hand.

Understanding needle configurations helps you choose the right setup for your style and improve the overall quality of your work.

Whether you're pulling razor-sharp lines, building soft black and grey gradients, or packing bold traditional color, the right cartridge makes all the difference.

Run it clean.
Run it precise.

Run it Maverick.

Miss it, regret it.