The Complete Guide to Gun Holster Types: IWB, OWB, Paddle, Duty, Competition, and AIWB Sidecar Holsters
Choosing the right holster is one of the most important decisions a firearm owner can make. A quality holster doesn’t just hold your firearm—it determines how securely you carry, how quickly you can access your firearm, how comfortable it is throughout the day, and how well it stays concealed.
With so many holster options on the market, many gun owners find themselves asking the same question: Which type of holster is right for me?
In this comprehensive guide, we’ll break down the most common holster types used today:
- IWB (Inside the Waistband) Holsters
- OWB (Outside the Waistband) Holsters
- Paddle Holsters
- Duty Holsters
- Competition Holsters
- AIWB Sidecar Holsters
Understanding the strengths and limitations of each style will help you choose the holster that best fits your carry method, lifestyle, and training needs.
Why Choosing the Right Holster Matters
A holster serves several critical purposes:
- Safety: A properly designed holster fully covers the trigger guard, preventing accidental discharges.
- Retention: The holster must securely hold the firearm in place during movement while still allowing a smooth draw.
- Accessibility: In a defensive situation, draw speed and consistency matter. The right holster supports a reliable draw stroke.
- Comfort: If a holster is uncomfortable, people are less likely to carry consistently. Comfort is especially important for everyday concealed carry.
- Concealment: Some holsters are specifically designed to reduce printing and keep the firearm discreet.
With those fundamentals in mind, let’s explore the most common holster types.
IWB Holsters (Inside the Waistband)
An Inside the Waistband (IWB) holster is designed to sit inside the waistband of your pants, positioned between your body and your clothing.
This style is one of the most popular options for concealed carry because it hides the majority of the firearm below the belt line.
Key Features
- Excellent concealment
- Slim profile design
- Belt clips or loops for secure attachment
- Adjustable cant and retention on many models
Advantages
Superior Concealment: Because most of the firearm sits inside the pants, IWB holsters offer minimal printing under clothing.
Ideal for Everyday Carry: Many concealed carriers prefer IWB holsters because they allow them to carry discreetly throughout the day.
Wide Compatibility: IWB holsters are available for nearly every handgun model and can accommodate accessories like optics or lights.
Considerations
While IWB holsters provide excellent concealment, comfort can vary depending on:
- Body type
- Holster material
- Ride height
- Clothing choices
Choosing a well-designed IWB holster with proper ergonomics and retention makes a significant difference in long-term comfort.
OWB Holsters (Outside the Waistband)
Outside the Waistband (OWB) holsters are worn on the outside of the pants and attach directly to the belt.
This design prioritizes comfort and accessibility, making OWB holsters a popular option for range training and open carry.
Key Features
- Belt loops or slots for secure attachment
- Comfortable positioning outside clothing
- Natural draw angle
- Stable platform for larger firearms
Advantages
Comfortable for Extended Wear: Because the firearm does not press between the body and waistband, OWB holsters are often more comfortable than IWB options.
Faster Draw: The firearm is easier to access because it is not partially concealed inside clothing.
Great for Larger Firearms: OWB holsters can comfortably carry full-size pistols, which may be difficult to conceal in IWB setups.
Considerations
The main drawback is concealment. OWB holsters typically require:
- A jacket
- Overshirt
- Hoodie or coat
Without a cover garment, the firearm will usually remain visible.
Paddle Holsters
A paddle holster is a variation of an OWB holster that uses a paddle-shaped backing plate inserted inside the waistband.
The holster itself remains outside the pants while the paddle stabilizes it against the body.
Key Features
- Paddle attachment instead of belt loops
- Quick installation and removal
- No need to remove your belt
- Adjustable cant on many models
Advantages
Quick On and Off: Paddle holsters are ideal for situations where you need to attach or remove your holster quickly.
Convenient for Training: Many shooters prefer paddle holsters for range days, training classes, or competitions because they are easy to remove between drills.
Comfortable Weight Distribution: The paddle spreads weight across a larger area of the waistband.
Considerations
While paddle holsters are convenient, they may not be as secure as belt-loop holsters during intense physical activity.
For this reason, they are most commonly used for:
- Range practice
- Training environments
- Casual carry
Duty Holsters
Duty holsters are designed for professionals such as law enforcement officers, military personnel, and armed security.
These holsters emphasize weapon retention and durability.
Key Features
- Advanced retention systems
- Locking mechanisms or hood guards
- Compatibility with weapon lights and optics
- Heavy-duty construction
Retention Levels
Duty holsters often include retention classifications:
Level I Retention: Basic friction retention.
Level II Retention: Includes one active retention mechanism such as a thumb release.
Level III Retention: Multiple locking systems designed to prevent unauthorized access.
These retention features protect the firearm during physical confrontations or close contact situations.
Advantages
- Maximum weapon security
- Durable construction
- Designed for professional duty belts
Considerations
Duty holsters are typically larger and heavier than concealment holsters, making them impractical for everyday concealed carry.
Competition Holsters
Competition holsters are designed specifically for shooting sports, where performance and speed are the primary goals.
These holsters are commonly used in disciplines such as:
- USPSA
- IDPA
- IPSC
- 3-Gun competitions
- Action pistol shooting
Key Features
- Minimal retention
- Extremely fast draw
- Adjustable ride height
- Adjustable cant and positioning
Advantages
Maximum Draw Speed: Competition holsters expose more of the firearm for rapid access.
Precision Adjustments: Shooters can fine-tune the holster position to optimize their draw stroke.
Lightweight Construction: Many competition holsters are designed to minimize weight and maximize efficiency.
Considerations
Competition holsters are not designed for concealed carry or defensive use. They prioritize speed over retention and security.
AIWB Sidecar Holsters (Appendix Carry)
AIWB (Appendix Inside the Waistband) refers to carrying a firearm at the front of the body, typically between the 12 and 2 o’clock positions.
A Sidecar holster integrates a spare magazine carrier directly into the holster platform.
Key Features
- Appendix carry position
- Integrated magazine holder
- Slim modular design
- Optimized concealment geometry
Advantages
Fast Access: The appendix position allows for a fast and efficient draw.
Excellent Concealment: Many users find appendix carry easier to conceal, especially with modern holster designs that reduce printing.
Spare Magazine Integration: A sidecar design allows you to carry extra ammunition without needing a separate pouch.
Improved Weight Distribution: The firearm and magazine balance each other across the beltline.
Considerations
Appendix carry requires:
- Proper holster design
- Good trigger protection
- Consistent training
With the right setup, AIWB sidecar holsters provide one of the most efficient concealed carry systems available.
How to Choose the Best Holster for Your Needs
The right holster depends on how you plan to carry and what you prioritize most.
Consider These Factors
Concealment: If discreet carry is your priority, IWB or AIWB holsters are typically the best choice.
Comfort: OWB and paddle holsters often provide the greatest comfort for extended wear.
Security: For professional environments, duty holsters with multiple retention levels are essential.
Performance: Competition holsters are built for shooters who prioritize speed and precision.
Convenience: Paddle holsters offer the fastest on-and-off capability.
Holster Comparison Chart
| Holster Type | Best Use | Key Benefit |
|---|---|---|
| IWB | Concealed carry | Maximum concealment |
| OWB | Range / open carry | Comfort and accessibility |
| Paddle | Training / quick use | Easy removal |
| Duty | Law enforcement / security | Maximum retention |
| Competition | Shooting sports | Fastest draw speed |
| AIWB Sidecar | Concealed carry | Gun + spare magazine system |
Final Thoughts
The best holster is one that fits your firearm properly, supports safe handling, and matches your intended use.
Whether you’re carrying for personal defense, working in a professional security role, training at the range, or competing in shooting sports, selecting the right holster style can significantly improve your comfort, safety, and performance.
By understanding the differences between IWB, OWB, paddle, duty, competition, and AIWB sidecar holsters, you can confidently choose the setup that best supports your carry style.
A high-quality holster isn’t just an accessory—it’s an essential part of responsible firearm ownership.