June, 14

AR-15 Auto Sear Jig: The Ultimate Guide for DIY Enthusiasts

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In the world of gun enthusiasts and weapon collectors, the AR-15 is a popular firearm that has been in use for decades. This rifle has become synonymous with customization, adaptability, and versatility. It allows users to modify it according to their specifications and preferences.

One of the essential components of an AR-15 is its auto sear jig. This device enables shooters to convert their semi-automatic rifles into fully automatic guns by attaching it to the lower receiver assembly. The auto sear jig works by holding a bolt carrier group's hammer against its rear portion while depressing another portion known as the trigger reset hook.

If you're interested in learning more about this crucial component or want to know how it works, keep reading! In this article, we'll dive deeper into everything related to ar-15 auto sear jigs – from what they are all about up until how they function when attached properly.

All About AR-15 Auto Sear Jig: A Comprehensive Guide

An AR-15 auto sear jig is a device designed to help gun enthusiasts and hunters to improve their firearms by helping them create a more precise trigger pull. It is an essential tool for those interested in building custom firearms that offer better accuracy, reliability, and performance. With proper use of an auto sear jig, you can get the desired trigger pull weight and reset on your rifle.

In this article, we will discuss everything there is to know about AR-15 auto sear jigs – from its benefits to tips on how to use it properly.

What Is An Auto Sear Jig?

The term "auto-sear" refers to a part of the trigger assembly in some fully automatic guns that catches the hammer after each shot and resets it so that another round can be fired automatically. However, owning or installing one could lead you into legal trouble if not done correctly or following appropriate guidelines.

An auto-sear jig comes as two parts; one holds bits used for drilling holes in receiver plates while using corresponding templates with pre-drilled holes where specified positions need boring out.

This tool makes it easy for gun enthusiasts who are looking forward to creating specific modifications within their rifles such as achieving perfect control with precision firing mechanisms such as Single Stage Triggers (SST).

How Does An Auto Sear Jig Work?

Auto-Sear jigs mostly work by allowing accurate placement of drill bits through guide holes onto an existing lower receiver's surface area. This method provides predetermined angles/depth measurements required when making modifications without causing any damage during installation phases. The result includes achieving correct levels regarding safety measures set out within firearm regulations' outlined guidelines across multiple jurisdictions worldwide today!

Ensure proper alignment before drilling gets underway since non-alignment might cause irreparable errors leading towards inaccurate placement levels during installation processes due mainly because these machines hold different types of milling bits sizes used for specific purposes.

Benefits Of Using An Auto Sear Jig

There are several benefits to using an ar 15 auto sear jig, including:

Precision and Accuracy:

An auto sear jig allows you to create precise holes on your receiver's surface area with exact angles, depths, and measurements necessary for accurate placement levels required by firearm regulations guidelines across most jurisdictions worldwide.


Purchasing an AR 15 Auto Sear Jig is cost-effective in the long run since it helps avoid costly mistakes that might arise when installing different components without precision drilling methods.


Using this tool gives you the ability to customize your firearms according to what best suits your needs or preference as a gun enthusiast. You can install Single Stage Triggers (SST) with ease.

Tips For Proper Use Of An AR-15 Auto Sear Jig

While working with an ar 15 auto sear jig might seem challenging at first glance, there are various tips that one can follow to ensure proper use of this tool. These include;

  1. Follow Instruction Manual Carefully – Always ensure that you read through the instruction manuals carefully before starting any modification processes using these tools since they offer detailed guidelines on how machines should be operated safely.
  2. Check alignment regularly – Ensure regular alignment checks are conducted throughout all phases during installation processes because such errors could cause irreparable damage rendering work unproductive over time due mainly if different drill bits' size gets used simultaneously!
  3. Wear Protective Gear – Wearing protective goggles and gloves is essential while working around these machines; especially when drilling into tough surfaces like aluminum or steel plates where debris particles may fly off during modifications phases.

In Conclusion,

When it comes down selecting a suitable way towards modifying guns accurately without risking safety issues while adhering strictly towards outlined firearm regulations set out within multiple jurisdictions worldwide today—selecting ar 15 auto sear jig should be the best option for any gun enthusiast. With its precision drilling capabilities, it helps avoid costly mistakes that might arise when installing different components without precise methods, making it cost-effective in the long run. So, if you're looking to create a better-performing and more reliable firearm for hunting or other shooting-related activities – an ar-15 auto sear jig is definitely worth considering!


What is an AR-15 auto sear jig?

An AR-15 auto sear jig is a tool designed to aid in the installation of an automatic sear into an AR-15 lower receiver. The jig provides a stable and accurate platform for drilling holes and milling out spaces in the lower receiver necessary for installing the auto sear. The tool is typically made from high-quality steel or aluminum, making it durable and long-lasting.

The process of installing an automatic sear into your AR-15 lower receiver can be complicated, but with this handy tool, you can complete the job with ease. A properly installed auto sear allows your rifle to fire automatically rather than requiring manual operation between each shot.

It's important to note that owning and using an automatic firearm requires proper licensing under federal law. If you're unsure about local regulations or whether ownership of such a weapon is legal in your area, consult with local authorities before purchasing or using any related tools.

Can I use any type of auto-sears on my AR-15?

No, not all types of automatic fire control group parts are compatible with every type of firearm nor are they legal without proper licenses. It's also important to note that certain types may require modifications beyond what a standard ar 5/AR10 lower does while others may work without issue.

The exact specifications needed will depend on both the specific make/model/version as well as local laws governing firearms ownership where one resides – so it’s highly suggested researching before making any purchase decisions.

Are there different types of jigs available for installing ar-15 Auto Sear Jig?

Yes! There are several different jigs available on today’s market suited towards various user requirements/preferences.

Some users prefer simple designs which offer easy setup/installation while others appreciate more advanced designs featuring multiple fixtures/mounting points providing greater stability during operations like welding or drilling holes/milling slots required for automatic fire control group parts installation.

Regardless of design, most auto sear jigs on the market today are made from high-quality materials like aluminum or steel to ensure durability and longevity.

What is the typical price range for an ar-15 Auto Sear Jig?

Prices will vary depending on factors such as brand, complexity of design, and material quality. However, in general expect to pay between $50-$300+ USD when shopping around online or at local gun shops.

It’s important to do your research in advance before making any purchase decisions – this will help ensure that you get a reliable product that meets your needs while also staying within budgetary restrictions.

Do I need any special tools/skills to use an ar-15 Auto Sear Jig?

Using an auto sear jig may require some specialized knowledge/tools depending on user familiarity with firearms assembly/disassembly. Basic mechanical skills may be needed along with additional equipment such as drill bits/milling tools.

It's also important that users understand how the specific model/version works before attempting setup/installation processes which can sometimes be complex (especially if modifying existing firearms). For those unfamiliar with working on guns it’s suggested seeking professional assistance first rather than potentially creating safety hazards through mistakes during DIY installations/modifications.

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