Description
This is the receiver extension Noveske Rifleworks uses on its own N4 (AR-15) rifles, so you're getting a buffer tube that was designed to run hard right out of the factory. It carries a carbine-length, 6-position profile with a mil-spec diameter of 1.148 inches, which means it plays nice with standard carbine stocks and collapsible setups. The Noveske Cross is engraved on the underside, so there's a little bit of pedigree hiding right where your stock rides.
What Sets the Noveske FDE Buffer Tube Apart
The tube is impact-extruded from 7075-T6 aluminum, which is the stronger alloy you want in a part that takes repeated recoil impulse. Underneath the finish it's Type III hard coat anodized for corrosion and wear resistance, then topped with a Flat Dark Earth Cerakote that adds that extra layer of protection and gives it a clean, matte earth-tone look. That FDE coating bumps the diameter by about a thousandth of an inch, which is normal for a Cerakoted tube and still keeps it in the mil-spec family.
Building With the Noveske Carbine Receiver Extension
Since this is a standard mil-spec carbine tube, it pairs with the vast majority of carbine stocks on the market, from Magpul to B5 to your basic M4-style collapsibles. A Parkerized castle nut comes along for the ride, so you've got the hardware to lock it down once you've got your action spring and buffer sorted. Keep in mind this is the tube and castle nut only, so you'll want to grab a buffer, spring, and end plate separately if you're starting from scratch.
Whether you're matching an FDE rail and furniture set or just want a buffer tube that looks as good as it performs, this one brings the Noveske name and the real-deal materials to back it up.
Key Specifications
- Manufacturer: Noveske Rifleworks
- Manufacturer Part Number: 05002836
- UPC: 840906139110
- Product Type: Buffer Tube / Receiver Extension
- Length: Carbine
- Positions: 6-Position
- Diameter: Mil-Spec 1.148 in (plus 0.001 in for Cerakote)
- Material: Impact-Extruded 7075-T6 Aluminum
- Base Finish: Type III Hard Coat Anodized
- Color / Coating: Flat Dark Earth Cerakote
- Fit: AR-15 / M4
- Markings: Noveske Cross Engraved
What’s Included
- Noveske FDE Cerakote carbine receiver extension (buffer tube)
- Parkerized castle nut
Frequently Asked Questions
Is the Noveske FDE buffer tube mil-spec or commercial diameter?
It's a mil-spec tube with a 1.148 inch diameter, plus about a thousandth of an inch for the Cerakote. That means it fits mil-spec carbine stocks, which are the most common on the market. If your current stock is set up for commercial-spec, it won't be a match.
Does this Noveske buffer tube come with a buffer and spring?
No, this is the receiver extension and a Parkerized castle nut only. You'll need to source your own carbine buffer, action spring, and end plate to complete the assembly. That's pretty standard for a tube sold on its own.
What is the Noveske FDE receiver extension made of?
It's impact-extruded from 7075-T6 aluminum, which is the tougher alloy preferred for parts that take repeated recoil. Underneath the Flat Dark Earth Cerakote it's Type III hard coat anodized for wear and corrosion resistance. This is the same tube Noveske runs on its own N4 rifles.
How many positions does the Noveske carbine buffer tube have?
It's a 6-position carbine-length tube, giving you plenty of adjustment range for a collapsible stock. That covers everything from a short length-of-pull for kitted-up shooting to a fully extended cheek weld. It works with standard carbine stocks.





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