Your AR-15’s buffer tube assembly plays a vital role in how effectively your rifle handles the energy generated when you fire it. Technically, it isn’t a part of the firearm’s gas system, but this assembly works with the system to create the right balance, limiting recoil. Browse through our buffer and buffer tube collection to see what we have available, or read on to find out more about these essential AR-15 components.
Why a Buffer Tube Is a Must-Have for AR-15 Builds
When you pull an AR-15’s charging handle, it pulls back its bolt carrier group and pushes against its buffer, compressing the buffer spring. Releasing the charging handle then allows the buffer spring to propel it forward, where it grabs a round from the top of a magazine and pushes it into the chamber, enabling your rifle to fire.
After the round is fired, gas from the burned powder enters the gas system through the gas port, traveling through the gas tube into the bolt carrier group. The force created by this gas causes the carrier to make contact with the buffer, with the buffer spring absorbing energy as it compresses backward into the buffer tube. At a full stroke, the spring once again transfers energy to propel the BCG forward.
Over time, moving parts, like a buffer and buffer tube, will wear out. Inspecting them regularly and evaluating their performance will help determine when they need to be replaced.
Individual Buffer Tubes
Some gunsmiths who wish to save time may purchase complete buffer tube assemblies, but others opt to buy buffer components separately. Wing Tactical’s collection includes multiple individual buffer tubes for those looking for peak customization opportunities while making their AR-15 setups unique.
Buffer Tube Kits
Builders searching for streamlined buffer and buffer tube assembly options should consider complete kits. These all-in-one packages from Wing Tactical contain everything you need to put together the perfect buffer for your rifle. As you source buffer tube kits for your AR-15, remember to pay close attention to compatibility.
Trust Wing Tactical to Supply AR-Platform Rifle Parts
Whether you’re building an AR-15 or optimizing an existing firearm, you can find all the buffer assembly parts you need from Wing Tactical. We maintain a large inventory of buffer and buffer tube options as well as buffer springs and complete kits featuring the products you need to create a buffer system for your firearm.
At Wing Tactical, we stand behind our products and manufacturers, regardless of whether you purchase a single part or a kit containing all the necessary components. We also extend fast shipping, hassle-free returns, and LEO/military discounts. Begin adding buffer parts to your cart, or contact us to talk to an expert about your options.
Frequently Asked Questions
What does a buffer tube do?
This part is a critical component of an AR-15. It houses a rifle’s buffer and buffer spring, which help absorb its recoil and ensure that the bolt carrier group cycles effectively after firing it. It’s also a mounting point for an AR-15’s stock.
Do all AR-15s require a buffer tube?
No, not all AR-15s require them. Traditional AR-15s, with fixed or collapsible stocks, typically utilize buffer tubes; however, some modern AR variations, such as bufferless AR pistols, do not. They feature other mechanisms that cycle a bolt carrier group.
Can I customize an AR-15’s length of pull by changing its buffer tube?
Yes, you can customize an AR-15’s length of pull by changing its buffer tube. Investing in an adjustable buffer tube and stock makes it possible to change a rifle’s LOP.
Should you build a buffer system or buy a complete kit?
You should think about trying to build a buffer if you’re an experienced gunsmith interested in achieving a highly custom buffer configuration. If you’re a first-time builder, you might feel more comfortable searching for a complete buffer assembly kit that contains a buffer and buffer tube, along with a buffer spring and other accessories.
How long do an AR-15’s buffer and buffer tube last?
An AR-15’s buffer and buffer tube are both durable, but individual buffer components are subject to routine wear and tear. A buffer spring is one of the most likely components to fail or degrade, as it can lose tension over time. If your AR-15 isn’t cycling quickly enough, check on these components, as either could be to blame for this issue.