ATI Outdoors AR-15 Mil-Spec Buffer Tube Package
ATI Outdoors
$60.69
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ATI Outdoors
ATI Outdoors AR-15 Mil-Spec Buffer Tube Package
The ATI Outdoors AR-15 Military-Spec Buffer Tube Package delivers a complete, USA-made buffer system upgrade built to withstand the rigors of hard use on most AR-15 platforms and AR variants.
- Military Type III hard-coat anodized 6061-T6 aluminum for maximum durability
- Complete package includes castle nut, locking ring, recoil plug, and buffer spring
- Steel military-grade E-coated castle nut resists corrosion and wear over time
- Mil-spec diameter fits most AR-15 and AR variant lower receivers perfectly
- Not compatible with .308/AR-10 platform rifles — purpose-built for AR-15 only
- Proudly made in the USA to exacting military specifications
Who This Is For
This buffer tube package is ideal for AR-15 builders, upgraders, and gunsmiths who need a reliable, mil-spec complete assembly without hunting down individual components. Whether you're completing a stripped lower, replacing a worn-out stock tube, or building your first carbine, ATI's all-in-one package gives you every hardware component needed for a solid, regulation-compliant buffer system installation.
Specifications
| Brand | ATI Outdoors (Advanced Technology International) |
|---|---|
| Specification | Military-Spec (Mil-Spec) |
| Material | 6061-T6 Aluminum, Type III Hard-Coat Anodized |
| Castle Nut | Steel, Military-Grade E-Coated |
| Package Includes | Buffer Tube, Castle Nut, Locking Ring, Recoil Plug, Buffer Spring |
| Compatible Platforms | AR-15 and most AR Variants |
| Not Compatible With | .308 / AR-10 Rifles |
| Country of Origin | USA |
Frequently Asked Questions
Does this buffer tube work with any AR-15 stock or pistol brace?
This is a mil-spec diameter buffer tube, which is the most common standard for AR-15 lowers. It is compatible with any mil-spec rated stock or pistol brace. Note that commercial-spec stocks, which have a slightly larger and tapered diameter, will not fit this tube — always verify your stock's spec before purchasing.
Do I need to purchase a separate buffer weight with this package?
This package includes a recoil plug and buffer spring but does not include a buffer weight (also called a recoil buffer). You will need to select an appropriate buffer weight separately — typically a standard carbine buffer for most AR-15 configurations, or a heavier H, H2, or H3 buffer for suppressed or overgassed rifles.
Is this buffer tube suitable for an AR-15 pistol build?
Yes, the mil-spec buffer tube itself is compatible with pistol lower builds and can accept most pistol braces designed for mil-spec tubes. However, be aware that when used in a pistol configuration, the firearm must remain legally classified as a pistol — consult current ATF guidelines regarding brace usage and overall configuration before building.
