A5 buffer and spring

By VorpalisSeptember 18, in Gun Springs. The differences made sense until I realized that the A5 buffer is longer than a carbine buffer, and this seems to negate the additional travel of the A5's longer receiver extension. So, what does an A5 setup offer over a 5. HK Test. A5 Follow Up. Thanks for the reply, Jesse. Those videos from Vuurwapen you linked to are actually what made me ask my question. The "Initial Impressions" video shows decreasing bolt bounce with increasingly heavy buffers, and the last carbine buffer he shows, weighing 4.

The standard A5 buffer he shows weighs 5. So, if a 4. A5 buffer causes no bolt bounce, wouldn't a 5. I just don't see a difference, especially given that the A5's increased buffer length negates the longer RE, but wondered if I was missing something.

You are missing a major component. The A5 runs a longer spring than the carbine length spring. As I understand it, longer springs are more consistent from part to part because the overall strength averages over each coil. I have used the vltor a5 and love it. I think that the longer spring from the a5 is the key to vltors recoil reduction in this buffer.

In case anyone else has the same question I did, stumbles across this thread and would like nitty-gritty details, there's a thread on m4carbine dot net where a guy from Vltor who goes by Phreakish lays it out I'm apparently so new I can't post URLs yet, but if you go to m4carbine dot net and search for "M16A5 Stock by Vltor" you should find it. The gist of it is that the A5's magic has nothing to do with the distance the buffer travels in fact it's pretty much identical to a carbine buffer's travel and only a little to do with the heavy weight of the buffer; the big deal is the characteristics of a longer spring with more coils and under a specific amount of pre-compression.

The relevant part of the thread goes on for several pages and they're worth reading if you're curious. As a life-long nerd, especially about physics and mechanics, it was humbling to learn something new about such a simple device as a spring.

Tubbs Buffer Spring - AR10 / SR-25 Buffer Springs

I have the vltor a5 system on my ar15, I love it. I am also using the A5 kit, but I replaced the action spring to a Sprinco green coded, but everytime I used a 5. By the way, with a round, the ejection angle is more on the 3 oclock to 4 oclock angle which is just perfect for me, your feedback is highly appreciated. Are you referring to the brass deflector?

That is the angled piece just behind the ejection port. If so its perfectly normal for that to have contact with brass. Its kind of desinged that way as thr name implies. You coud try a different spring but the results may or may not vary.

a5 buffer and spring

More important is constant and consistent ejection. I know the brass causes marks but it can usually be easily cleaned off if it really bugs you. These are tools and if you're going to use your rifle as a competitive tool wait til you dump it in your first match, unless its a safe queen there going to get marked up, scratched up etc, its a badge of honor that comes with use You can post now and register later.

If you have an account, sign in now to post with your account. Paste as plain text instead. Only 75 emoji are allowed. Display as a link instead. Clear editor.We're sorry, midwayusa. Learn how you can enable Javascript. Eligible for. The A5's enhancements to the AR operating system result in a rifle that exhibits the increased Reliability, Smooth Action Impulse and Performance for which the A2 Fixed Stock Assembly is renowned, while also offering the benefits of Full Adjustability and greater Ergonomics attributed to the M4 Collapsible Stock arrangement.

The A5 Recoil System is compatible with both direct gas impingement and piston operated AR platforms, and may be fine-tuned to alter a rifle's recoil impulse or cyclic rate by changing to a different weight A5 Buffer 5 weights available. Add to Cart for Special Price. Additional charges for Non Free Shipping products, products shipping to remote locations, HazMat products, and large or heavy items still apply.

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a5 buffer and spring

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AR15 Gas System and Buffer Basics

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Own this product? Product Reviews are not compatible with your browser.We asked for an overview of the A5 System and why it might be something to consider as you put together your next AR build. But when you dig into the technical side of things, its attractiveness becomes clear. The system also utilizes a rifle action spring instead of a carbine spring. It allows the gun to run properly under a much wider range of input and factors. This usually equates to more overall reliability…which is a good thing.

Nick Wantland: Years ago, the Marine Corps was looking at ways to deal with the ergonomic and length-of-pull issues they were having with the fixed stocks on their M16A4s. The fixed stock was designed long ago before the introduction of thick, modern body armor. To compensate for this, a lot of guys were having to hike the fixed stock way up on their shoulder. This shooting stance causes lots of issues with accuracy, and with the mechanical functionality of the gun.

Simply popping a standard carbine stock and buffer setup on there does not work. It leads to bolt bounce, erratic cycle timing, and lots of other issues. So there was a lot more overall length-of-pull adjustability there, and the rifle buffer characteristics were retained…all while adding some other beneficial characteristics and cool features that were built into the new buffer system. They did some very high round count direct comparison tests against the other buffer systems.

Our A5 system produced the least malfunctions, stoppages, etc. I try my best not to use buzzy words like that, but it makes perfect sense when you break it down mechanically, and historically.

Buffers, Tubes & Kits

The carrier travels the same distance, so the amount of compression a carbine spring and rifle spring experience is the same. However, the carbine spring is shorter and has less wire than a rifle buffer spring.

This means with the rifle buffer system, you have a longer spring with more coils and more wire to perform the same work. When both springs are deflected the same amount, the carbine spring experiences more stress, and also experiences a higher differential between the pre-loaded position and fully-loaded positions than a rifle spring does. There is a lot more to it than that, but in basic terms, the rifle buffer system is quite literally more smooth and consistent than a carbine setup, in regards to the action spring.

Because of this, the A5 buffers are capable of reaching a higher overall mass than carbine buffers. And very importantlyit allows this mass to be included as uncoupled internal mass. Including the mass inside the buffer as uncoupled weight achieves an entirely different thing than making the outside body of the buffer itself heavier.

The extra uncoupled mass inside of the A5 buffer is part of what makes it so effective at eliminating bolt bounce. The number suffix corresponds to how many of the four internal weights inside are tungsten. For example, the A5H0 has four standard steel weights and no tungsten, while the A5H2 has two steel and two tungsten. The standard, middle-of-the-road buffer is the A5H2.

The standard A5H2 and rifle spring is appropriate for a very large percentage of the build configurations out there. The two buffers under that, the A5H0 and A5H1 are great for things like soft-ported And by loss of functionality I mean short stroking, failure to lock back on empty, things like that.

Then the heavier buffers, the A5H3 and A5H4, are appropriate for short barreled builds, over-gassed guns, suppressed applications, and that sort of thing. For example, a lot of the SWAT guns we build have Most of those guns are running A5H3 buffers, and they have excellent functionality both with and without their suppressors attached. Those SWAT guns also have a surprisingly smooth recoil impulse for that type of configuration.

Nick Wantland: Many people who build their own ARs overlook the buffer system in favor of spending money on other less important components.

Builders should know that the buffer system is an extremely important part of the gun. The current trend in the industry is to make barrels with insanely oversized gas ports, and then buy an expensive and intricate adjustable gas block to tame it down from the front end. There are admittedly some that are way better than others, but I have seen many of them fail. Retrofitting a useful and utterly reliable adjustable gas system into the package size of a low-pro AR gas block is hard to do well.Please enable JavaScript in Your Browser JavaScript is not currently enabled in your browser and due to this our site will not work as it should.

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a5 buffer and spring

This is a drop in upgrade for a Magpul UBR 2. There is a noticeable reduction in felt recoil compared to a standard weight carbine buffer and spring.The buffer is the contact point for the bolt carrier to move rearward within the buffer tube and the spring resides in the most aft position of the assembly.

When the buffer spring recoils, it pushes the buffer and bolt carrier forward, thus loading the next round of ammunition and closing the bolt for the next shot. While all dire AR rifles function similarly with this system, there are mainly two different sizes of buffers rifle length and carbine length. The important headline here is that these two sizes are NOT interchangeable. Rifle length buffer weights are used when a standard A2 buffer tube is installed for a fixed stock.

The extra length helps to fill the void in the longer A2 rifle buffer tube. Carbine buffer weights are used with most collapsible stocks that utilize a carbine buffer tube. Generally, fixed stocks use an A2 smooth buffer tube and adjustable stocks use a carbine buffer tube. Most of the stocks on the market use a Mil-Spec carbine buffer tube and are adjustable for length of pull. Ultimately, other factors including barrel length, gas port size, gas tube length, dwell time, use of suppressor, etc…all affect the gas management.

When building a custom rifle, the variety of buffers and springs available allow the rifle builder options to optimize the gas delivery. These are not the only options by the way. We will be covering how to tune your action and gas system in a future article.

Below are the different weights of carbine buffers available. These are average, as there are variances from manufacturer to manufacturer. For the most part, buffer springs are all fairly similar. Both rifle and carbine springs have the same diameter, just different lengths.

The Wolff XP buffer springs are also a great option for smoothing out the recoil system by adding a little bit more tension.

a5 buffer and spring

For a really smooth, quiet action, JP Enterprises has gone against the grain and developed a unique solution. This combination buffer-spring assembly eliminates the friction of standard buffer components, resulting in outstanding smoothness and sound abatement, as the spring does not rub the inside of the buffer tube. The spring is removable from the assembly for custom tuning and cleaning. For tuning to a certain load, you can replace the steel weights with tungsten for a heavier buffer, as well as change out the spring with the JP Spring Kit.

Both the AR and AR versions of the JP Silent Captured Springs are functional in rifle and carbine length buffer tubes by either using or omitting the included insert. The AR version fits and functions in any AR variant, regardless of caliber and the AR version should fit and function in any large-frame ARtype platform. The JP system also does not require the buffer retainer to be installed, thus simplifying the initial assembly process, as well as maintenance of the rifle.

Another option is to shave the tip of the buffer retainer until it becomes flush with the inner part of the buffer tube.

M16 A4 Mil-Spec Rifle Spring/A5

If shooting with a suppressor is in your future, the silent captured springs deadens the sound of the buffer system cycling to reduce the noise to a minimal amount.We're sorry, midwayusa. Learn how you can enable Javascript. Eligible for. This Vltor A5 Recoil System AR Receiver Extension Tube is an improved buffer tube design that features 7 different positions to provide the ultimate in stock adjustability.

The A5's enhancements to the AR operating system result in a rifle that exhibits the increased Reliability, Smooth Action Impulse and Performance for which the A2 Fixed Stock Assembly is renowned, while also offering the benefits of Full Adjustability and greater Ergonomics attributed to the M4 Collapsible Stock arrangement.

The A5 Recoil System is compatible with both direct gas impingement and piston operated AR platforms, and may be fine-tuned to alter a rifle's recoil impulse or cyclic rate by changing to a different weight A5 Buffer 5 weights available. Add to Cart for Special Price. Additional charges for Non Free Shipping products, products shipping to remote locations, HazMat products, and large or heavy items still apply. See Details. One Time Offers have limited quantities available and usually once they are sold out, they are not offered again.

Vltor A5/Rifle Spring

In-Stock: Overdue. Made in USA. Notify Me. Add to Wish List. Was the information on this page helpful? Yes No. Do you accept our terms and conditions? Need More Information? Update Your Browser Now! Own this product? Product Reviews are not compatible with your browser.LaRue is known world-wide for sniper targets, quick-detachable mounting solutions and hyper-accurate 7. The options you chose might be on backorder. Sorry, the chosen combinations are out of stock.

SKU: Quantity Only. Description Reviews Have purchased Tubbs springs in the past and were always of good quality. Not this time. Bought this as my AR10 was jamming with the suppressor. This cured the issue. Worth every penny and I am ordering a few more for other projects. Average Customer Rating: 4. Login to rate this review. Tubbs flatware spring helped my AR performance. This spring was a game changer as it slowed down the action and reduced cycling speed to help eliminate cycling issues with my AR issues.

The Tubbs flatware spring was a nice addition as it slowed down the action and eliminated light primer strikes in my AR LaRue also offered this product as a low solution to light primer strikes. Thank you LaRue! This flat wire spring was put in a new lr build. It is unbelievable the difference it sounds from the stock spring. Very happy with the spring.

Used in 2 ar 15s trimmed down the length works well. The chambering and cycling issues were solved with the installation of the spring. Felt recoil is reduced and cycling feels much smoother. The spring is very long compared to the standard AR 10 spring but it does fit in the carbine length buffer tube.

Great price and quick shipping by Larue tactical too. I have now bought three of these springs total and they work perfectly in my M5 builds using the Armalite length tube. LaRue has the best price going on these springs and shipping is fair. I bought the Tubbs flat wound spring on a recommendation that it would cure a problem I had with a new M5E1 build. I replaced the spring that came with the complete lower receiver assembly and it worked fine.

I have since purchased another one for my newest build. I highly recommend the Tubbs Flatwire spring to everyone. And LaRue most certainly has the best price and delivery speed. Related Products.