2A Armament Builder Series Billet AR-15 Buffer Tube
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2A Armament
Overview
The 2A Armament Builder Series Billet AR-15 Buffer Tube is a Mil-Spec, carbine-type buffer tube designed for reliable operation in your AR-15 build. Crafted from aluminum and finished with hardcoat anodization, this tube provides durability while maintaining a lightweight profile. This buffer tube is often found in builds featuring a rifle gas system and chambered in .223 Wylde, making it a versatile choice for various shooting applications.
Specifications
Available Merchants(1)
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Stock Alert
Build history on GunPartPicker
Builders have been adding the 2A Armament Builder Series Billet AR-15 Buffer Tube to their builds on GunPartPicker since February 2026. All time, it ranks #55 of the 71 buffer tubes builders have added.
It was out of stock everywhere we track for all of October 2026, and today the one retailer we track is out of stock. Listed prices start at $59.78 at KY Gun Company for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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Frequently Built With
The part most often added in each category by the builds that include this one
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TriggerTech AR-15 Diamond Trigger, Short Two Stage, Black Stright Flat Trigger
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