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Ar-15/M16 A1 Rifle Buffer Tube Assembly - A1 Rifle Stock Completion Kit
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$71.99
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SKU: 080000553
Overview
This kit provides the core parts needed to mount a compatible buttstock on a standard AR-15/M16/M4 lower receiver or clone, making it a practical choice for stock replacement or conversion work. It includes the receiver extension tube, recoil buffer, recoil buffer spring, and buttstock cap screw, along with installation instructions to support a straightforward setup. The components are listed in aluminum and steel with a matte black anodized finish on the receiver extension and A2 stock spacer, offering a clean, functional appearance. For hunters and shooters setting up a rifle to match a preferred stock configuration, it offers a focused, no-frills parts package without extra accessories.
Why Hunters Choose the Brownells
Complete Kit
Includes the core components needed
Fits Standard,
Mil-spec AR-15/M16/M4 lower receivers and
Useful Stock
Conversions, including setups changing to
Installation Instructions
Are included for a more
Components Are
Held to strict dimensional tolerances
Key Features
- Complete kit for mounting a buttstock on an AR-15 rifle or carbine
- Useful for stock conversions, including changing to a collapsible carbine stock
- A1 rifle kit includes receiver extension tube, recoil buffer, recoil buffer spring, and buttstock cap screw
- Fits standard, mil-spec AR-15/M16/M4 lower receivers and clones
- Installation instructions are included
- Receiver extension and A2 stock spacer are aluminum with matte black anodized finish
Best Used For
- AR-15 or M16 owners completing an A1 rifle stock installation on a standard lower receiver
- Shooters planning a stock conversion from fixed rifle setup to a collapsible carbine stock
- Builders needing a complete kit for mounting a compatible buttstock with included installation instructions
- Users working with mil-spec AR-15/M16/M4 lowers or compatible clones requiring standard-fit components
Specifications
| Buttstock Cap Screw | Included |
|---|---|
| Fits Standard Mil Spec Ar 15m16m4 Lower Receiver And Clones | Yes |
| Installation Instructions Included | Yes |
| Lock Ring | Steel |
| Receiver Extension A2 Stock Spacer | Aluminum, anodized, matte black |
| Receiver Extension Tube | Included |
| Receiver Plate | Steel |
| Recoil Buffer | Aluminum and steel |
| Recoil Buffer Spring | Included |
| Spring | Steel |
| Stock Types Available | Four standard buttstock types |
Pros
- Complete kit includes the core components needed to mount a buttstock of your choice.
- Fits standard, mil-spec AR-15/M16/M4 lower receivers and compatible clones.
- Useful for stock conversions, including setups changing to a collapsible carbine stock.
- Installation instructions are included for a more straightforward setup process.
- Components are held to strict dimensional tolerances for proper fit and function.
Considerations & Trade-offs
- This is a completion kit, so it is intended for users who already know which stock configuration they are building toward and have the needed buttstock separately.
- The kit is described as fitting standard, mil-spec AR-15/M16/M4 lower receivers and clones, so compatibility outside that pattern is not supported by the provided data.
- Installation instructions are included, but the product is still a parts kit rather than a fully assembled stock setup.
- The description notes four standard buttstock types are available, so this A1 rifle kit is one specific configuration rather than a universal solution.
Suggested Comparisons
- AR-15 stock conversion kit
- Rifle buffer tube assembly
- AR-15 lower receiver parts kit
- Collapsible rifle stock setup
Suggested Accessories
- AR-15/M16 lower receiver parts
- Buttstock installation tools
- Receiver extension accessories
- Installation instructions guide
Frequently Asked Questions
What comes in the A1 rifle stock completion kit?
The kit includes the receiver extension tube, recoil buffer, recoil buffer spring, and buttstock cap screw.
Will this kit fit a standard AR-15 lower receiver?
Yes. The listed fit is standard, mil-spec AR-15/M16/M4 lower receiver and clones.
Is this kit meant for a fixed stock or a collapsible stock setup?
The description says it is used for stock conversions, including altering a rifle to accept a collapsible carbine stock. It is also identified as an A1 rifle kit.
Are installation instructions included?
Yes, installation instructions are included.
What materials are listed for the components?
The receiver extension and A2 stock spacer are aluminum with a matte black anodized finish. The recoil buffer is aluminum and steel, and the spring, lock ring, and receiver plate are steel.