Timber Creek Outdoors Castle Nut – AR-Platform, Black – TCCN (UPC: 816397026864)
Lock your AR-15 buffer tube down with confidence using the Timber Creek Outdoors Castle Nut Black – TCCN, UPC 816397026864. Designed for Mil-Spec AR-platform receiver extensions, this high-quality castle nut secures your buffer tube and end plate, helping ensure rock-solid reliability on everything from duty carbines to custom builds and competition rifles.
Finished in a tough black coating and made from durable steel, the Timber Creek castle nut is a simple but critical component that no serious AR build should overlook.
Built for Mil-Spec AR-Platform Buffer Tubes
The Timber Creek TCCN Castle Nut is made to work seamlessly with standard AR buffer systems:
Compatible with Mil-Spec AR-15/AR-platform buffer tubes (receiver extensions)
Works with standard end plates and QD end plates, including Timber Creek’s own Greyman QD series
Ideal for new builds, retrofits, or replacing worn factory hardware
Whether you’re assembling a rifle from the ground up or refreshing an older carbine, a solid, well-made castle nut is essential for long-term reliability.
Durable Steel Construction for Hard Use
This castle nut is built from strong steel to handle the stresses of real-world use:
Steel construction offers excellent strength and resistance to deformation under recoil and sling tension
Designed to be staked in place against the end plate, per best practices, to prevent the buffer tube from loosening over time
Perfect for hard-use rifles, defensive carbines, law enforcement builds, and training guns
If you rely on your AR for serious work, upgrading to a robust steel castle nut is a smart, low-cost insurance policy.
Black Finish – Clean, Low-Profile Appearance
The Black TCCN castle nut is finished to blend in with the rest of your rifle:
Matte black finish matches most AR receivers, buffer tubes, and end plates
Low-profile appearance keeps the rear of your receiver clean and professional
Pairs perfectly with Timber Creek’s black buffer tubes, end plates, and Greyman accessories
Whether your build is all-black or color-accented, this castle nut disappears into the background and lets your main components stand out.
Precision Machined for Proper Fit
Fit and alignment are critical at the rear of the receiver, and this castle nut is machined accordingly:
Threads are cut to Mil-Spec dimensions to ensure smooth installation on compatible buffer tubes
Properly machined notches accept standard armorer’s wrenches / castle nut tools for secure tightening
Allows consistent torque and staking, helping lock your buffer assembly in place the right way
Poorly made castle nuts can strip, cross-thread, or work loose—this one is built to do the job and stay there.
Easy Upgrade for Any AR Build
Because the castle nut is such a central, universal part, the Timber Creek TCCN is one of the easiest upgrades you can make:
Perfect for builders assembling a new lower receiver
Great when you’re swapping to a different stock or end plate and want to refresh hardware
Useful replacement if your original castle nut is damaged, marred, or improperly staked
Pair it with a quality end plate and Mil-Spec buffer tube, and you have a solid foundation for your rifle’s stock assembly.
Ideal for Builders, Armorers & Enthusiasts
The Timber Creek Outdoors Castle Nut Black – TCCN is an excellent choice for:
Home builders looking for dependable small parts for their AR projects
Gunsmiths and armorers who want quality hardware they can rely on in customer builds
Enthusiasts upgrading or rebuilding AR-15s for defense, 3-Gun, training, or range use
Small parts like castle nuts might not be flashy, but they’re critical to a rifle that stays tight, consistent, and dependable over time.
Key Features – Timber Creek Outdoors Castle Nut TCCN
Brand: Timber Creek Outdoors
Product: Castle Nut – AR-Platform
Model / Part Number: TCCN
UPC: 816397026864
Material: Steel
Color / Finish: Black
Compatibility:
Function: Secures buffer tube and end plate to the lower receiver; designed to be staked for long-term reliability
Why Choose the Timber Creek Outdoors Castle Nut Black – TCCN?
Choose the Timber Creek Outdoors Castle Nut Black TCCN (UPC 816397026864) if you want:
A strong, steel castle nut that holds your buffer tube securely in place
A Mil-Spec compatible component suitable for virtually any AR-15 build
A clean black finish that matches modern AR aesthetics
A small but vital part from a brand trusted by builders and shooters alike
From first-time builds to high-end custom rifles, this Timber Creek castle nut is a tough, reliable choice for locking down your AR’s buffer system.
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