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Best 21 Gauge Pin Nailer in 2024 [Top 4 Model Reviewed]

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If you are a professional contractor or an amateur repairman, then you require a range of power tools that you need for work. A pin nailer with 21 gauge nail head size is one of the most important tools you need in your toolbox.

With a 21 Gauge Pin Nailer, you should be able to get speed and versatility in a compact package. It can be used to drive both standard nails and pins without any adjustments.

Unlike traditional nailers that only have the option of either one or the other, these nailers can handle both. They have been designed with contractors in mind to be tough, durable, and dependable and they deliver on all three fronts.

By reading this article, you’ll learn about the features and specifications of the 21 gauge pin nailer as well as the benefits offered by them.

Magnum Industrial MPB 2150 21 Gauge nail gun

Senco 21 Gauge Pin Nailer

OMER MG40 21 Gauge Nailer

Our Top 4 Picks for 21 Gauge Pin Nailer

Pin nailers are a common tool in many industries and can be used for a number of different projects. However, not all nail guns are created equal. 

Some contractors may need a heavy-duty gun while others might only require something small enough to use on delicate materials like design trim or crown mouldings. 

Our review products are handpicked so that you can get the most out of your 21 gauge pin nailer.

1. Magnum Industrial MPB 2150 21 Gauge nail gun

Magnum Industrial 21 gauge nailer is the perfect tool to use for furniture, doors, window casings and design trimming, light woodworking, panel assembling and finishing.

It is a 21 gauge pin and brad driver with an air duster built-in. This 21 gauge nail gun includes a blow-molded plastic case. In general, the MPB 2150 Pin Nailer is an ideal choice for a variety of jobs, from trim to framing.

It shoots 21 gauge pins and brads from 5/8†to 2†(15mm to 50mm) in length with a magazine capacity of 200 pcs. This electric nail gun features a pressure range between 70-100 psi and weighs 1.3 kgs (2.8 lbs). Its dimensions are 9-1/4†x 2-3/8†x 8-7/8.

The Magnum Industrial MPB 2150 comes with a belt hook that is ideal for driving into all hardwoods. It has a fine precision nose for easy aiming and drives nails flush every time.

In addition, the no-mar soft plastic nose piece protects delicate work surfaces, and the cushion grip trigger safety provides comfort when in use.

This model also includes a magazine with a capacity of 200 nails with a sight window to make sure you are getting the right depth of nail placement.

The Magnum Industrial MPB2150 is a lightweight blow gun that’s easy to use and well balanced, making it perfect for any task around the house or garage.

Also, it has an anti-dry fire mechanism that prevents you from blowing air when there’s no nozzle attached to the end of the blowgun, which makes it safer than other models on the market.

All in all, the MPB2150 is a great tool with all the capabilities of a full-size nail gun, but in a compact design.

Highlighted Features

  • It includes a blow-molded plastic case for protection and portability.
  • The MPB2150 has an anti-dry fire mechanism and includes a blow-molded plastic case.
  • MPB 2150 Brad Nailer is great for trim and framing work.
  • It shoots 21 gauge pins and brads with a magazine capacity of 200 pcs.
  • The tool features a pressure range between 70-100 psi and weighs 1.3 kgs (2.8 lbs).

2. OMER MG40 21 Gauge Nailer

The Omer MG-40 is a professional pin nailer that accepts standard 21 gauge headless pins and M-series brads from 1/2″ – 1-9/16. Omer is an Italian brand that offers excellent quality for acceptable pricing.

Omer MG 40 21 Gauge nailer accepts a minimum of 15mm to a maximum of 40 mm pin. It will also accept 30mm stainless steel, so if you are using this nailer for an outdoor environment then this pin nailer will be perfect for you.

When you are in the single-shot mode, you can operate it by depressing the safety onto the work surface and fire pin nail. And when you are in multi-shot mode, you can hold the trigger and bounce fire.

For most applications, a single shot is more than appropriate. The pin magazine is a sideload type, so when you want to use it, load the pins into the magazine and you are good to go.

It also features an adjustable safety nut that conversely adjusts the depth of drive-by holding the tool closer or further away from the work surface. With this feature, you can choose if you want the nail just below the wood surface or countersunk.

It also comes with a rubber grip to make the tool comfortable to hold and safety on the nose prevents you from accidentally firing brads. 

It has an anti-dry fire mechanism so that the tool doesn’t fire without nails in the magazine. It also has a quick switch from bump to trigger fire so that different firing styles can be selected for different applications.

Moreover, it comes with no-mar plastic tip protectors so that it doesn’t damage the wood surfaces. This hand-made high-quality pin nailer features a lightweight design while providing high power performance.

The tool is excellent for rattan furniture production, light wood assembly, mirror frames, picture frames, and door and window trim construction.

Highlighted Features:

3. Senco 21 Gauge Pin Nailer

The Senco pinner 21lxp pin nailer is an extremely powerful nailer that delivers quality driving power and pin lengths and drives into hard substrates. The ergonomic handle of Senco 21 Gauge Pin Nailer allows for maximum comfort all day.

The Pinner also fits neatly between 18 gauge brad nail and 23 gauge micro pin, so whether you are nailing up frames or rattan backings there is no shortage of power or control to do the job right.

Additionally, the design adds convenience with onboard storage for a quality extra No-Mar pad plus a jam clearing wrench to help get the jammed nail out quickly and efficiently without making mistakes due to damaging the surface area.

This pin nailer is a metal-plastic construction with a 1/4 inch npt air inlet, weighing 3.15 lbs and 8.89 inches high, 7.87 inches long, and 1.85 inches width. 

The magazine of the nailer automatically adjusts for different fastener lengths. Also, it can hold 170 pins in the magazine at a given time.

This power tool also has a reversible belt hook for easy access, rear exhaust with embedded muffler for continuous working, and last nail lockout to help prevent dry-firing. The ultra-narrow nose allows easy access to the millwork and tight spaces.

The Pinner 21lxp is great for applying decorative trim, molding, paneling, picture frames, rattan, trim, and finish nail.

Highlighted Features:

  • This powerful nailer automatically adjusts to different fastener lengths.
  • The ergonomic handle ensures all-day comfort
  • It weighs 3.15 lbs with 1/4 inch NPT air inlet.
  • An embedded muffler in the exhaust allows continuous use.
  • The ultra-narrow nose allows easy access to the millwork and tight corners.

4. Senco 21 Gauge Pneumatic Pin Nailer

The Senco FinishPro 21LXP Pneumatic Pin Nailer is a lightweight, versatile pneumatic tool that can be used on just about any project.

With this nail gun, you can fasten like a champ and finish like a pro. This is not your average pin nailer and its performance easily outperforms some of the heavier, higher-end nailer models out there.

The Senco 21 Gauge Pneumatic Pin Nailer has a nice look and feel to it. The metal housing of these pneumatic nail guns with rubber over-mold is durable. This pin nailer bridges the gap between 23 gauge micro pins and brad nails of 18 gauge.

A comfortable ergonomic design of this framing nailer allows for hours of easy use. Its sequential actuation trigger is easy to use yet sturdy enough to hold up against tough jobs. This pneumatic nailer can operate on air pressure of 70 to 120 psi.

The Senco 21LXP accepts 21 Gauge Straight Strip Nails up to 200 with pin length from 5/8″ to 2″. These straight strip medium head pins offer the convenience of usage along with efficiency.

As mentioned, the 21LXP is compatible with the straight strip fastener type. Overall, the Senco FinishPro 21LXP Pneumatic Pin Nailer is an excellent finish nailer from a solid, well-respected manufacturer of quality construction tools at a great price.

Highlighted Features:

  • The nailer is lightweight and ergonomic in design.
  • Rubber over-mold for durability and comfort.
  • 200 straight pin capacity for convenience and efficiency.
  • Operating pressure ranges between 70-120 psi.
  • This pneumatic 21 gauge nailer can accommodate nails from 5/8″ to 2″.

Factors to Consider:

good 21 gauge nailer

There are many things to take into account when buying a 21 Gauge Pin Nailer. Some of them are mentioned below:


First of all, you must decide who will be using the tool. If you are buying the tool for yourself then you can go for a lightweight and stylish tool. 

However, if the tool is going to be used by many people in your office then you must opt for a heavy-duty tool. Such tools are built with high-quality material and hence last longer.


Identify the place where you will be using the tool. This is important because it tells whether you need to go for a cordless Pin Nailer or a corded one. 

In case, you are going to use the tool indoors then you must opt for a corded 21 Gauge Pin Nailer. On the other hand, if you are going to use it outdoors then a cordless tool might be much suitable for you.

Size of the Nail Gun:

21 gauge round head nailer

21 gauge pin nailers are available in different sizes. A roofing nailer or a framing nailer is under the classification of large body nailers as they can be used in basement framing work and roofing shingles.  

The brad nail gun or crown staplers are under the classification of small body nail guns. Due to their small build, they are used for smaller carpentry works. Keep these facts in mind when you look for a 21 gauge pin nailer.    

Ease of Use:

The best 21 gauge pin nailers are the simplest to operate. They should be easy to load with nails, hold steady while in use, and have a safety mechanism that automatically disengages when the trigger is pressed so there’s no risk of accidental discharge.

Safety Features:

need 21 gauge brad nailer

Pin nailers are generally safe to use, but users should be wary of the threat of kickback, which is when the tool suddenly moves in a direction opposite to the one intended by the user because its fastener has become lodged in the workpiece.

To prevent this from happening, make sure that your pin nailer has some sort of safety device that prevents it from operating when the nose is pressed against a surface.

Furthermore, wearing protective goggles and thick gloves while working with this tool is highly recommended.


A 21 gauge pin nailer will cost anywhere from $200 or more. The price depends on brand name and features such as the number of nails it can fire at once, the type of trigger mechanism, and weight.


Is a Pin Nailer Worth It?

Pin nailers are made for smaller jobs with very thin finishing work or jobs that need to be done quickly. For example, installing shelving in a restaurant is the perfect use for a pin nailer because it doesn’t take too much time and can be done by one person.

What are 21 Gauge Nails Used for?

21 gauge cordless nailer

21 gauge nails are used for softer materials like drywall, material to avoid using a heavier nail. The holes from the nails make it easier to fill the hole with another material. They are considered to be excellent choices for trim works.

What are Micro Pin Nails Used for?

Micro pin nails are great for fitting into narrow spaces that standard nails can’t enter. They are commonly used in finish work when you don’t want to make a visible nail hole in the surface like on molding, chair rails, paneling, or picture frames.

Can You Use a Pin Nailer for Crown Molding?

It’s possible to use a pin nailer for crown molding, but you’ll need a pneumatic pin nailer that can drive pins into thick materials. I might recommend you look at the Senco FinishPro 21LXP Pneumatic Pin Nailer which is designed specifically for crown molding and other similar materials.


The 21 gauge pin nailers are tools that can be used to complete many projects and tasks with ease. They are easy to use, have less recoil than the 18 gauge nailer, and they help you work faster by nailing more quickly. 

The ergonomic design of this type of gun also makes it much easier on your hands as well as making for higher accuracy over time. 

I hope this article has helped you in choosing the best 21 gauge pin nailer in order to pursue finding the right one for your next project or task at hand!

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