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Advanced Technology

Ar-15 Military Mil-Spec Buffer Tube Assembly Package

Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.

Ar-15 Military-spec

Buffer tube assembly package

Military Diameter

Threads for maximum fit into

Constructed Type

III anodized 6061 T6 aluminum

Includes Steel

Military-grade E-coated castle nut and

Includes Ar-15

Recoil plug and buffer spring

$60.99
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SKU: 100035866

Overview

Built for AR-15 setup and replacement work, this buffer tube assembly package provides the core components needed for a complete receiver extension installation. It includes a military-spec buffer tube with military diameter threads, along with a steel castle nut, locking ring, recoil plug, and buffer spring. The assembly is constructed from Type III anodized 6061 T6 aluminum and is offered by Advanced Technology. This package is suited to builders and owners looking for a straightforward, parts-complete option without extra accessories.

Why Hunters Choose the Advanced Technology

Military-diameter Threads

Are designed for maximum fit

Includes Castle

Nut, locking ring, recoil plug,

Constructed From

Type III anodized 6061-T6 aluminum

Steel Military-grade

E-coated castle nut and locking

Made Usa

By Advanced Technology

Key Features

  • AR-15 military-spec buffer tube assembly package
  • Military diameter threads for maximum fit into AR-15 receiver
  • Constructed of Type III anodized 6061 T6 aluminum
  • Includes steel military-grade E-coated castle nut and locking ring
  • Includes AR-15 recoil plug and buffer spring
  • Made in the USA by Advanced Technology

Best Used For

  • AR-15 owners assembling a military-spec buffer tube package for a compatible receiver setup
  • Builders wanting included castle nut, locking ring, recoil plug, and buffer spring in one package
  • Users seeking a Type III anodized 6061 T6 aluminum buffer tube assembly with steel hardware
  • Shooters prioritizing a straightforward replacement or upgrade part for an AR-15 build

Specifications

Blade FinishMilitary Type III Anodized
Buffer SpringIncluded
Buffer TubeIncluded
Buffer Tube Diameter ThreadsMilitary Diameter Threads
Castle NutSteel Military Grade E-Coated
Country Of OriginMade In The USA
Locking RingIncluded
Material6061 T6 Aluminum
Military SpecMilitary-Spec
Product TypeAR-15 Buffer Tube Assembly Package
Recoil PlugIncluded
WarrantyLimited Lifetime Warranty

Pros

  • Military-diameter threads are designed for maximum fit into AR-15 receivers.
  • Includes castle nut, locking ring, recoil plug, and buffer spring in one package.
  • Constructed from Type III anodized 6061-T6 aluminum.
  • Steel military-grade E-coated castle nut and locking ring are included.
  • Made in the USA by Advanced Technology.

Considerations & Trade-offs

  • Designed specifically as an AR-15 military-spec buffer tube assembly, so it is not a universal fit for other platforms or setups.
  • The package is focused on the buffer tube assembly components; it does not include a complete rifle build or additional accessories beyond what is listed.
  • The description emphasizes military-diameter threads and mil-spec compatibility, which may be a consideration if your build uses non-mil-spec parts.
  • The included warranty is listed as limited lifetime, so buyers should review the retailer’s warranty details for coverage specifics.

Suggested Comparisons

  • AR-15 buffer tube assemblies
  • AR-15 lower receiver parts
  • AR-15 recoil spring and buffer components
  • AR-15 castle nut and end plate kits

Suggested Accessories

  • AR-15 buffer tube assembly
  • Castle nut and locking ring
  • Buffer spring
  • Recoil plug

Frequently Asked Questions

What is included in this buffer tube assembly package?

The package includes an AR-15 military-spec buffer tube, a steel military grade E-coated castle nut and locking ring, and an AR-15 recoil plug and buffer spring.

Is this buffer tube made for AR-15 receivers?

Yes. The product description states it has military diameter threads for maximum fit into an AR-15 receiver.

What material is the buffer tube made from?

The buffer tube is described as being constructed of military Type III anodized, 6061 T6 aluminum.

Does this product come with a warranty?

Yes. The listing states it includes a limited lifetime warranty.

Where is this product made?

The product information states it is made in the USA.