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Ar-15/M16 Mil-Spec Buffer Tube Assembly - Ar-15/M16/M4 Stock Hardwear Mounting Kit, Mil-Spec
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$61.95
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SKU: 100014185
Overview
This mounting kit is designed to support an adjustable buttstock setup on an AR-15/M16/M4 lower receiver, making it a practical choice for building or replacing a stock assembly. It includes the core components needed for installation, including a six-position buffer tube, carbine buffer, action spring, and castle nut, all intended for Mil-Spec stock compatibility. The buffer tube is machined to Mil-Spec dimensions and finished with a Type III hardcoat anodizing, while the castle nut and spring are specified in steel for the assembly. For hunters and shooters setting up a rifle for field use or general range work, it offers a straightforward, all-in-one hardware solution without unnecessary extras.
Why Hunters Choose the Bravo Company
All-in-one Kit
Includes the parts needed to
Compatible Mil-spec
Mil-Spec stocks for use with
Six-position Buffer
Tube is machined from 7075-T6
Type Iii
Hardcoat anodized finish adds a
Includes 3
Oz. carbine buffer and high-tensile
Key Features
- All-in-one mounting hardware kit for adjustable buttstock installation
- Compatible with Mil-Spec stocks
- Includes parts needed to mount a stock assembly onto the lower receiver
- Six-position buffer tube machined from 7075-T6 aluminum
- Buffer tube finished with Type III hardcoat anodizing
- Kit includes a 3 oz. carbine buffer and carbine action spring
- Castle nut is machined steel with phosphate finish
Best Used For
- For builders assembling a Mil-Spec adjustable stock setup on an AR-15/M16/M4 lower receiver.
- For users replacing or completing stock mounting hardware with a compatible all-in-one kit.
- For shooters needing a six-position buffer tube assembly with included buffer, spring, and castle nut.
- For BCM-focused builds where Mil-Spec stock compatibility and matching hardware are required.
Specifications
| Adjustable Positions | 6 |
|---|---|
| Buffer Tube | Six position buffer tube; 7075-T6 aluminum; Type III hardcoat anodized finish; Mil-Spec dimensions |
| Carbine Buffer | 3 oz. (85g) |
| Carbine Spring | High-tensile steel |
| Castle Nut | Machined high carbon steel; heat treated; phosphate finish |
| Compatibility | Mil-Spec stocks |
| Kit Contents | All necessary parts to mount a stock assembly onto your lower receiver |
| Mounting Hardware Included | Yes |
Pros
- All-in-one kit includes the parts needed to mount a stock assembly onto a lower receiver.
- Compatible with Mil-Spec stocks for use with standard adjustable buttstock setups.
- Six-position buffer tube is machined from 7075-T6 aluminum to Mil-Spec dimensions.
- Type III hardcoat anodized finish adds a durable surface to the buffer tube.
- Includes a 3 oz. carbine buffer and high-tensile steel carbine action spring.
- Machined steel castle nut is heat treated and phosphate finished for added durability.
Considerations & Trade-offs
- Compatible with Mil-Spec stocks only, so it is not a universal mounting solution for every adjustable buttstock setup.
- This is a hardware kit, not a complete stock assembly, so additional stock components are still required.
- The six-position buffer tube provides adjustment options, but it does not offer the broader range found in more adjustable systems.
- The kit is specified for lower receiver stock mounting, so fitment depends on matching the rest of the rifle setup to Mil-Spec dimensions.
Suggested Comparisons
- AR-15 stock mounting hardware kits
- Mil-spec buffer tubes
- Carbine buffer and action spring assemblies
- Adjustable buttstock installation parts
Suggested Accessories
- AR-15/M16 stock
- Buffer tube
- Castle nut
- Carbine action spring
Frequently Asked Questions
What rifles or stocks is this buffer tube assembly compatible with?
It is described as compatible with Mil-Spec stocks and is intended to mount a stock assembly onto an AR-15/M16/M4 lower receiver.
Does this kit include everything needed to mount a stock assembly?
The description says it is an all-in-one mounting hardware kit and that it contains all the necessary parts to mount a stock assembly onto the lower receiver.
What is included in the kit?
The kit includes a six-position buffer tube, a standard 3 oz. carbine buffer, a carbine action spring, and a castle nut.
What materials are listed for the main components?
The buffer tube is 7075-T6 aluminum with a Type III hardcoat anodized finish. The castle nut is machined high carbon steel with a phosphate finish. The carbine spring is made of high-tensile steel.
Is this a fixed-stock setup?
No. The product is described as a six-position buffer tube assembly for an adjustable buttstock.