Radical Firearms Carbine Buffer Tube

Manufactured by Radical Firearms
Manufactured by Radical Firearms
3 Reviews
$14.99 $19.99

In Stock

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This Radical Firearms carbine buffer tube is machined from high-strength durable aluminum and features a smooth hard coat anodized black finish to withstand heavy use and harsh weather. This AR-15 buffer tube is a great option for building your first rifle or even your tenth. The threads have been properly cut and rolled to provide extra strength when installed onto your lower receiver. This Mil-Spec receiver extension is compatible with a large variety of aftermarket and Mil-Spec carbine stocks, so you can choose the perfect one for you. This receiver extension offers up to six positions of adjustment that allow you to customize the length of pull of your rifle. If you are building an AR-15, consider building one with a Radical Firearms carbine buffer tube.

  • Machined from high-strength aluminum
  • Smooth hardcoat anodized black finish
  • Compatible with Mil-Spec and aftermarket collapsible carbine stocks
  • Rolled threads for extra strength when installed in the lower receiver
  • For use with carbine recoil springs and buffers

Choosing the right buffer tube for your AR-15 build is critical. If you plan on building a short carbine style AR with a carbine or mid-length gas system, then this buffer tube is the right one for you. It is the designed to be used with gas systems shorter than rifle length and provides plenty of room to fully cycle the action with a carbine buffer weight. This buffer tube is also compatible with AR-308 style rifles, however a specific buffer weight and recoil spring must be used. No matter what you build, Radical Firearms has the part for you.

Radical Firearms offers law enforcement grade hardware. Crafted with quality materials and covered by their lifetime warranty, Radical Firearms is an outstanding choice for any budget.
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BrandRadical Firearms
FitmentMIL-SPEC - 1.14 in
California Prop 65 warning

 WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to www.P65Warnings.ca.gov.

Ratings & Reviews

3 reviews


Mil-spec Stock fits very loose

by -

I ordered this buffer tube because the one I really wanted was not in stock. The finish looks and feels great, also the quality of the aluminum appears to of good, however my magpul ACS milspec stock fits very loose and rattles. I was expecting a tighter fit so I'm a little disappointed.

Radical Brand--use caution.

by -

My buffer tube would not fit my Magpul PRS3 stock. After further inspection the part of the buffer tube on the bottom (where the adjustable holes are) is too long. I took the part into my local firearms store to ask about it and they confirmed it had a defect (out of spec). This is my second time buying a Radical product--with poor luck. I will personally buy other brands from now on. Thankfully, Primary Arms has been great so far about managing my concern. Very pleased with this site. (I will go with a rifle length buffer tube this time.)

Not Mil spec

by -

Undersized and the worst is that the bottom section is way off so far forward that PRS or any stock that uses the forward shoulder to lock are impossible to install without cutting a relief in it