Buffer-System – Tactical Shooting

3 Best Recoil Reducing Buffer Systems For AR15

TS Editor — Thu, 11 Apr 2024 16:05:27 +0000

If you are shopping for the best recoil reducing buffer system for your AR15. Here are a few options to consider while maintaining a reliable 16" barrel AR15.

When you think of the AR-15, the buffer might not be the first part that comes to mind. Yet, this seemingly unremarkable component, tucked away inside the receiver extension, holds significant potential to enhance your recoil experience.

AR15 recoil can be tamed significantly by changing the buffer spring, buffer weight, gas system and the muzzle device. While a good muzzle device can minimize the muzzle drift, a good recoil reducing buffer can add to that performance without messing with the bolt carrier group or resort to a full rifle length system.

Top Rated Recoil Reducing Buffer Systems

VLTOR A5 buffer - The primary advantage of the A5 system lies in its ability to use a rifle length spring, which you can also achieve with the Tubb flat spring that can enhance the performance of your AR-15 by providing the same force as a traditional A2 buffer spring, improving reliability and smoothness across various firing conditions

Buy VLTOR A5

Geissele Super 42 - The super 42 isn't necessarily the best at reducing recoil but the braided spring wire has a much longer service life, better spring harmonics and it eliminates the "twang" sound in the buffer tube when firing

Buy Super 42 Buffer

JP SCS Gen 2 - Enjoy a quieter shooting experience with the JP Enterprises GEN 2 Silent Captured Spring, designed to reduce the distracting noise typically made by standard M4 buffer springs and to reduce bolt bounce when seating the round in the chamber.

Buy JP SCS Buffer

Do Heavier Buffer Reduce Recoil

Your firearm needs just the right amount of gas to cycle the action with force, but without going overboard. Too much gas means more recoil and quicker wear on your AR, while too little could lead to jams, feeding issues, or the bolt failing to lock after the last round.

Most factory AR 15 rifles are set up to be a bit heavy on the gas to ensure they keep running even under harsh conditions. But more gas isn't always better, especially when you're looking for a smoother and less jarring shooting experience, like in recreational shooting or competitions.

This is where the buffer comes in, offering you a golden opportunity to fine-tune your AR's cycling. By adjusting the buffer's weight, you can dial in the perfect amount of reciprocating mass, leading to a lighter recoil and a smoother operation that suits your specific needs.

What Helps Reduce Recoil On AR15

Replacing your standard H buffer with a heavier ones is the easiest and most affordable way to reduce felt recoil and muzzle movement, and help with the loading cycle by adding more weight.

Referenced Geissele

Heavier buffers like Colt's H1, H2, and H3 models, weighing 3.8, 4.6, and 5.4 ounces respectively, are available. The H1 has two steel and one tungsten weight, the H2 has one steel and two tungsten weights, and the H3 has three tungsten weights. You can upgrade from a standard buffer to an H3 and use its weights to make H1 and H2 buffers too.

Browse AR15 Buffer System Here

AR 15 Ejection Pattern Chart

TS Editor — Sat, 16 Sep 2023 19:16:15 +0000

AR 15 ejection pattern says a lot about the amount of gas the rifle is currently exerting. The direction of the shell coming out of the ejection port hitting the deflector is the indictor of too much gas or too little assuming we are only using standard target ammo.

Ejector spring tension, ammo powder charge, buffer spring, deflector angle, gas port size, bolt carrier group weight, buffer weight, suppressor all play a role. There are many permutation of configurations a user can play with.

Common problems we can see from the ejection pattern can lead to malfunction are:

Over gassed
Short stroking

Ejection Pattern Direction

The ideal ejector pattern begins around 3:00 to the 4:30 position.

We will use a clock to illustrate this.

The place where the shell comes out is right in the middle of the clock. The back part of the gun points to the bottom, where the 6:00 is. Most people think that used bullets should pop out between where the 3:00 and 4:30 numbers would be. But sometimes, they pop out between the top (12:00) and the 3:00. Other times, they come out between the 4:30 and the 6:00.

If a gun has its ejection port on the right side, it can't push things out between the bottom (6:00) and the top (12:00).

Over Gassed AR15

An over gassed AR15 can cause:

Feeding issue
Over time damage to the bolt carrier group
Bolt slamming back too hard
More than usual recoil
Forward ejection pattern

The AR-15's gas block manages its gas pressure. At the gas block, the system gathers and channels this pressure to the upper receiver and bolt carrier group.

While most AR15 gas blocks are fixed, and the only thing you can tweak is the rest of the gun.

With an adjustable gas block, you can achieve the perfect pressure setting for improved timing, experience reduced carbon accumulation, and avoid undue wear and tear. Moreover, it can produce an ejection pattern between 12:00 and 3:00.

Short Stroking

If the shell ejection pattern is past the 4 o'clock position, it's an indication of short stroking, aka not enough gas pressure. In the physical sense, the bolt isn't traveling back enough, and the shell isn't bouncing off the deflector enough either.

The shooter can increase the pressure with an adjustable gas block. A heavy buffers and springs often cause short stroking because it's applying resistance tension against the bolt when it's coming back. If you switch to a lighter buffer or spring, it lets the bolt and carrier move fully to the rear when firing.

Cleaning The Gun

Be sure to clean the gun too. Friction on moving components can make the rifle exhibit symptoms of short stroking. So keep the rifle cleaned and well lubricated make all the parts move freely to prevent malfunction. Short stroking happens when the gas rings on the bolt carrier group aren't staggered or the gas tube is clogged with carbon residue.

Use a strong CLP like the Breakthrough carbon remover to break off these carbon residues.

AR 15 Buffer Weight Comparison – Full Guide

TS Editor — Sat, 29 Jul 2023 14:55:40 +0000

The buffer is a key component in an AR-15 rifle. However, even many people don't fully understand its role. It was discovered that by adding weight to the buffers, the recoil could be reduced. However, adjusting the weight can affect the overall balance of the rifle system, potentially causing issues.

When it comes to buffers, one size definitely doesn't fit all. Each rifle may require a specific type of buffer, depending on various factors. So, before you decide to swap buffers based on an internet post, pause and consider the potential implications. Incorrectly matched buffers can lead to serious issues that could compromise the reliability and safety of your rifle.

For example, adding additional weight to a buffer can cause the rifle to short stroke or not have enough port pressure to reload, particularly in cold weather. This is because ammunition functions differently in hot and cold weather, with cold weather creating a much lower port pressure. This underlines the importance of using milspec type buffers in rifles used for military purposes.

Quick Buffer Weight Selection Guideline

Assume no changes in bolt carrier group weight, recoil spring and ammo.

Over gassed - Increase the buffer weight

Under gassed - Decrease the buffer weight

Shell ejection forward of 3 o'clock position - Increase the buffer weight

The History of Rifle Buffers

The first rifle buffers were known as the Edgewater spring guides. These were the original buffers that came with the original Colt AR15 Model 01 rifles. These rifles were designed to run a hammer propeller, which gave a rate of fire around 600-700 rounds per minute. However, with the introduction of a ball powder into the mix, the rate of fire increased to nearly 1000 rounds per minute. This increased speed led to a phenomenon known as bolt carrier bounce, causing major failures during fully automatic fire.

The Impact of Bolt Carrier Bounce

Bolt carrier bounce is when the bolt carrier group closes during firing, causing the bolt to close, lock, and due to the impact, bounce back slightly, moving just out of battery. This causes the hammer to strike prematurely, leading to a misfire.

To rectify this, the standard buffer was introduced in 1968, which contained five steel weights separated by rubber discs. This buffer absorbed the shock from the bolt carrier and prevented it from bouncing backward and unlocking, ensuring reliable function even at higher rates of fire.

The Evolution of Rifle Buffers

Despite the success of the standard buffer, in the late 90s, Colt introduced a cost-cutting measure. They developed a buffer that provided enough weight to keep the bolt closed long enough, but removed the steel weights.

This buffer, however, failed to function in fully automatic rifles, leading to light strikes and malfunctions. This buffer was quickly replaced with the original standard buffer.

The Hydraulic Buffer

The next evolution in buffers was the hydraulic buffer. However, many hydraulic buffers failed to function correctly, primarily due to seal failure. One exception to this was the hydraulic buffer developed for the Colt Light Machine Gun (LMG).

This buffer helped reduce the rate of fire to around 700 rounds per minute, improving accuracy significantly. However, like all hydraulic buffers, there were issues with seal failure, requiring the creation of a rebuild kit.

Carbine Buffers

The development of the carbine buffers brought more complexity. The original buffer used in the XM177 and XM177E2s was a shorter buffer with three steel weights. However, with the advent of the M4 carbine, a new buffer, the H2 buffer, was introduced.

This buffer contained one tungsten weight and two steel weights. The addition of the tungsten weight slowed the bolt carrier movement just enough to ensure proper presentation of the M855 round into the chamber.

H2 Buffer

The H2 buffer is characterized by its specific weighting: two tungsten weights and one steel weight. The buffer was developed during the M4A1 program for the SOCOM (Special Operations Command), which required a rifle with a heavier barrel.

The H2 buffer was conceived to rectify a specific issue. As the buffer moved rearward and the bolt closed, there was insufficient weight to halt the bolt carrier bounce. This issue became particularly pronounced when trying to fire a heavy barrel (such as the 14 1/2 inch heavy barrel) on fully automatic, resulting in light strikes. The addition of an extra tungsten weight provided the necessary heft to stop the bolt carrier bounce, ensuring a smooth and efficient operation.

H3 Buffer

While the H2 buffer is suitable for many applications, in certain circumstances an even heavier buffer is required. The H3 buffer, designed specifically for the Colt Infantry Automatic Rifle (IAR), contains three tungsten weights, making it the heaviest buffer Colt has ever offered.

The H3 buffer was created to tackle issues with light strikes resulting from the IAR's significantly heavier barrel. It's important to note that different buffers are designed for specific weapon conditions, enabling reliable function in various environments, whether it's the Arctic, desert, or temperate zones.

Impact of Barrel Weight

One key aspect to consider when dealing with buffers is the weight of the barrel. The heavier the barrel, the more bounce you get from the bolt carrier when it hits the barrel extension. This means that when you change not just the length, but also the weight of your barrel, you need to consider how it will affect the balance and operation of your firearm.

The heavier the barrel, the more weight you will need to provide to counteract the bolt carrier bounce. This is especially important when firing fully automatic. If you are using a standard buffer for semi-automatic firing, it won't make much difference, but for fully automatic firing, the H2 buffer becomes essential.

H Buffer VS Carbine Buffer

TS Editor — Fri, 28 Jul 2023 03:32:56 +0000

In the world of AR-15 platforms, changing one component can skew the performance of a previously optimized rifle. Various components receive much attention and debate over their significance in ensuring optimal function. While components like the barrel, gas system, and bolt carrier group often take the spotlight, there is one critical piece that is often overlooked – the buffer.

Though not the most prominent component, the buffer plays a crucial role in maintaining smooth operation in your rifle. In this article, we'll explore H buffer vs Carbine buffer, and how to choose the right one for your specific rifle setup.

Understanding the Buffer's Role

The buffer, along with the buffer spring, resides within the buffer tube and establishes the rhythm for the cyclic action of your AR's gas system. After firing a shot, the bolt carrier group moves rearward within the buffer tube and makes contact with the buffer.

The weight of the buffer and the tension in the spring resist this rearward movement, allowing the rifle's action to cycle effectively.

Importance of Buffer Weight

In general, heavier buffers will take longer to move and slow down the action, resulting in smoother recoil and improved operation. However, using an excessively heavy buffer can lead to short stroking, where the rifle fails to cycle fully, causing inconsistent extraction and ejection.

Two Main Buffer Sizes: Carbine and Rifle Length

Rifle Buffer

Carbine Buffer

While all direct impingement AR rifles function similarly, they come in two main buffer sizes: rifle length and carbine length buffers. These sizes are not interchangeable.

Choosing the Proper Buffer Weight

Selecting the appropriate buffer weight involves tuning your rifle using different combinations of spring and buffers. However, keep in mind that the buffer and buffer spring are just two pieces of the puzzle.

Other factors, such as barrel length, gas port size, gas system length, bolt carrier weight, suppressor usage, and caliber, will also impact how the rifle manages gases during its cycling.

The key here is to test them one by one. If the shell ejection pattern is forward of the 3 o'clock position, then that means the rifle is over gassed. This means the bolt is slamming too fast back, which makes the shell bounce off the deflector too hard.

Common Buffer Sizes and Their Applications

Let's take a closer look at some common buffer sizes and their applications:

Carbine Buffer (3 ounces): The most common buffer for traditional carbine length gas systems. Works reliably with a wide range of ammo and some mid-link gas systems.
Heavy Buffer (H or H1 - 3.8 ounces): Recommended if you encounter issues with a hard-running system or experience violent or erratic extraction.
H2 Buffer (4.6 to 4.7 ounces): Often used in pistol builds with sub 16-inch barrels to offset the more aggressive cycling.
H3 Buffer (5 to 5.4 ounces): Suitable for AR platforms in heavier calibers like 7.62x39, .300 AAC Blackout, 224 Valkyrie, 458 SOCOM, and 50 Beowulf.
HSS Buffer (6.5 ounces) and XH Buffer (8.5 ounces): Recommended for specialized AR builds in heavier calibers.