June, 15

AR 15 Bolt Catch Spring: The Ultimate Guide for Smooth Functioning

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The AR 15 Bolt Catch Spring is an essential component of the AR 15 rifle. It is a small but crucial part that plays a significant role in ensuring the proper functioning of this firearm. Without it, the bolt catch would fail to hold open after firing your last round, which significantly affects your shooting experience.

As an AR 15 enthusiast, understanding every aspect of this rifle's functionality is vital to ensure its smooth operation and longevity. The bolt catch spring works alongside other components like trigger springs and buffer tubes to deliver optimal performance when using your firearm. Hence, it's essential to know how these parts work together and maintain them regularly.

In this article, we'll take you through everything you need to know about the AR 15 Bolt Catch Spring – from what it does and how it works with other components in your firearm to signs that indicate when it needs replacement or maintenance tips for durability purposes. Keep reading!

AR 15 Bolt Catch Spring: An Essential Component for Your Rifle

If you're an experienced gun owner, you know that maintenance is crucial to keep your firearm in top condition. Among the many components that need regular attention, the AR-15 bolt catch spring is often overlooked but plays a significant role in ensuring your rifle functions correctly.

In this article, we'll delve into everything you need to know about the AR-15 bolt catch spring – from its function and importance to comparisons with other types of springs and tips on proper installation.

What Is an AR 15 Bolt Catch Spring?

The bolt catch spring is a small yet essential component located inside your rifle's upper assembly. It sits between the lower receiver's end plate and the rear of the bolt catch plunger, providing pressure on both parts. When installed correctly, it enables smooth cycling of rounds during firing and reloading.

Importance of Choosing High-Quality Springs

As with any firearm part or accessory, not all AR-15 bolt catch springs are created equal. Inferior quality or poorly manufactured springs can cause malfunctioning issues such as failure-to-feed or chamber issues that can lead to more severe problems like jamming or even safety hazards.

Choosing high-quality brands like Wolff Gunsprings ensures reliability while maintaining optimal functioning levels for prolonged periods. Such reputable manufacturers use superior materials such as chrome silicone wire instead of standard steel wire found in cheaper variants that tend to lose tension over time leading reduced performance levels

Comparing Different Types Of Springs

When it comes down selecting a suitable replacement spring for your rifle’s particular needs some considerations are necessary; most notably,

Chrome Silicon vs Stainless Steel

Chrome silicon offers higher resilience than standard steel used by some manufacturers since they resist temperature changes better due their unique chemical compositions . The tensile strength provides tighter tolerances resulting optimal functioning during cyclic loads when compared stainless steel counterparts.

Round Wire vs Flat Wire

Flat wire springs offer a broader surface area that provides consistent pressure between the catch plunger and bolt carrier's backstop. Round Wire Springs are less expensive with fewer contact points and thus suitable for anyone on a tight budget.

Tips On Installing Your AR 15 Bolt Catch Spring

Regardless of your firearm expertise, it's always essential to follow proper installation guidelines when replacing any part or component. Here are some tips to consider before commencing such a task;

Safety First

Always ensure you clear your weapon beforehand by removing the bolt from the upper assembly and visually inspecting chamber to confirm there is no round present.

Use The Right Tools

Ensure you have all tools necessary for disassembling an upper receiver in particular punch tools as they help remove pins without damaging their alignment holes

Clean All Parts

Thoroughly clean any parts requiring replacement; this ensures there is no debris or dust present that may clog up other components during future firing activities


In conclusion, understanding the importance of maintaining your rifle cannot be overstated. Paying attention to small components like AR-15 Bolt Catch Springs can prevent costly repairs, accidents while improving overall user experience with these firearms. Remember always invest in high-quality brands with superior materials like chrome silicon when choosing replacements while observing proper installation techniques makes all difference long term use efficiency


What is an AR 15 bolt catch spring?

An AR 15 bolt catch spring is a small yet crucial component of the AR-15 rifle. It is a coiled spring that sits inside the lower receiver of the rifle, specifically above and behind the bolt catch mechanism. The function of this part is to provide upward tension on the bolt catch plunger, which ensures that it stays in place when not in use. Without this tension from the bolt catch spring, your rifle's action would be unreliable and could potentially cause malfunctions.

When you press down on your magazine release button while shooting your AR-15, you activate its internal mechanism that engages both its magazine release button and its automatic locking system on its charging handle (bolt carrier group). This process allows for quick reloads without having to manipulate any external controls manually.

How do I install an AR 15 bolt catch spring?

Replacing or installing an AR-15's Bolt Catch Spring can be relatively simple with proper tools such as needle nose pliers and patience (as it can often slip out of position). To begin installation,

  1. Remove all ammunition from your firearm.
  2. Ensure safety by engaging safety mechanisms or removing upper receiver assembly
  3. Detach both takedown pins by pulling them outwards until they clear their respective holes; then lift up slightly while pulling forward slowly till separation occurs.
  4. Unscrew buffer tube retaining nut using castle nut wrench counterclockwise
  5. Pull back buffer tube so recoil springs separate themselves enough to remove old Bolt Catch Spring.
  6. Carefully insert new replacement Bolt Catch Spring into housing area above trigger guard receptacle where old one was removed previously
    7 ) Use needle nose pliers if necessary placing them at end loops pushing upwards until fully seated

To ensure proper installation we recommend consulting with a professional gunsmith or watching step-by-step instructional videos online before attempting this operation yourself.

Does my AR 15 bolt catch spring need to be replaced?

If you are experiencing any issues with your rifle's bolt catch mechanism, it may be time to replace the bolt catch spring. One of the most common symptoms of a failing or worn out AR 15 Bolt Catch Spring is that the bolt will not lock back after firing your last shot. This can also lead to feeding issues and other malfunctions if left unaddressed.

Another sign that your recoil springs and captured buffer system might require replacement include excessive signs of wear on parts such as scratches, gouges, bends or breaks in components due to misuse (dropping firearm accidentally).

A good rule of thumb is always keeping spare parts on hand in case something goes wrong while shooting at range or hunting trip so you can quickly make repairs without having to wait for shipping times.

What materials are used to make an AR 15 Bolt Catch Spring?

AR-15 Bolt Catch Springs come in different strengths depending upon manufacturer’s specifications but commonly made from high-quality music wire stainless steel material which offers longevity against environmental factors such as heat buildup during rapid fire exercises.

The metal composition also provides durability against rusting which could lead towards malfunctioning operation due exposure over time outside elements affecting internal mechanisms associated with this component part.AR-15 accessories companies often provide upgraded versions utilizing more rigid alloys like chrome Silicon Steel alloy capable handling higher stress loads exhibiting improved performance under successive strain scenarios compared standard factory models

How do I clean my AR 15 bolt catch spring?

Cleaning an AR-15 Bolt Catch Spring requires removing any accumulated dirt oil build up by using solvent cleaners like Hoppes #9 gun cleaner solution applied via brush cleaning pad wiping down surface allowing product soak into crevices breaking loose debris particles before repeated cleaning process till no grime left behind.

Afterwards use dry cloth removing all excess moisture preventing future corrosion hindering proper functionality firearm's operational system. Proper maintenance schedule taking care springs other internal mechanisms associated with firearm's functionality recommended avoid problems before they occur. Be sure to also lubricate the spring properly with a non-petroleum-based lubricant to ensure smooth operation.

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