Image unavailable
Ar-15/M16 Bolt Carrier Completion Kit - Bolt/Carrier Completion Kit
Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.
$46.99
View on Brownells
You'll be taken to Brownells to complete your purchase.
Hunter's Outpost earns a commission from affiliate links at no extra cost to you.
SKU: 080000552
Overview
This kit provides the small but essential components needed to finish an AR-15 bolt and bolt carrier assembly for installation in the rifle. It is well suited to custom builds when the bolt and carrier come from different sources, and it also serves as a practical replacement set during refurbishment of existing rifles. The package includes a firing pin, cam pin, firing pin retaining pin, and installation instructions, with fitment noted for Colt-manufactured bolt carriers and compatible clones. Built from steel components with the finishes listed in the specifications, it is intended for straightforward assembly rather than a complete bolt carrier group.
Why Hunters Choose the Brownells
Includes Critical
Parts needed to complete an
Useful Custom
Builds when bolt and carrier
Also Suited
Replacement of key small parts
Manufactured From
High-quality steels and hardened as
Includes Installation
Instructions for straightforward assembly
Key Features
- Contains firing pin, cam pin, firing pin retaining pin, and installation instructions.
- Completes an AR-15 bolt and bolt carrier for installation in the rifle.
- Useful for custom builds when bolt and carrier come from different sources.
- Also suitable for replacing critical parts during rifle refurbishment.
- Fits Colt-manufactured bolt carriers and clones.
- Firing pin is steel with a chrome finish; cam pin and retaining pin are steel with black oxide finish.
Best Used For
- Custom AR-15 builders assembling a bolt and carrier from separate sources
- Rifle owners replacing critical bolt carrier parts during refurbishment
- Users needing a completion kit for Colt-manufactured bolt carriers and compatible clones
- Builders who want included installation instructions for straightforward assembly
Specifications
| Blade Finish | chrome finish; black oxide finish |
|---|---|
| Cam Pin | Steel, black oxide finish |
| Compatibility | Fits Colt-manufactured bolt carriers and clones |
| Firing Pin | Steel, chrome finish |
| Installation Instructions Included | Yes |
| Kit Contents | firing pin, firing pin retaining pin, cam pin, and instructions |
| Material | high-quality steels |
| Retaining Pin | Steel, black oxide finish |
| Tolerance | mil-spec tolerances |
Pros
- Includes the critical parts needed to complete an AR-15 bolt and bolt carrier assembly.
- Useful for custom builds when bolt and carrier come from different sources.
- Also suited for refurbishing existing rifles with replacement of key small parts.
- Manufactured from high-quality steels and hardened as necessary to mil-spec tolerances.
- Includes installation instructions for straightforward assembly.
- Fits Colt-manufactured bolt carriers and compatible clones.
Considerations & Trade-offs
- This is a completion kit, not a full bolt carrier group, so it only covers the listed small parts needed to finish assembly.
- Compatibility is specific to Colt-manufactured bolt carriers and clones, so fit should be verified before purchase.
- The kit is intended for assembly or refurbishment, which means it may not be the right choice if you need a fully assembled, ready-to-install unit.
- Installation instructions are included, but the product still assumes the user is completing a bolt and carrier already obtained from other sources.
Suggested Comparisons
- AR-15 bolt carrier group parts
- AR-15 upper receiver parts
- AR-15 rifle maintenance parts
- AR-15 custom build components
Suggested Accessories
- AR-15 bolt carrier group
- Firing pin
- Cam pin
- Firing pin retaining pin
Frequently Asked Questions
What parts are included in this bolt carrier completion kit?
The kit includes a firing pin, cam pin, firing pin retaining pin, and installation instructions.
What is this kit used for?
It is used to complete an AR-15 bolt and bolt carrier for installation in the rifle, especially when the bolt and carrier were obtained from different sources.
Will this kit fit my bolt carrier?
The provided data says it fits Colt-manufactured bolt carriers and clones. If your carrier is not in that category, compatibility is not confirmed here.
What are the listed material and finish details?
The firing pin is steel with a chrome finish. The cam pin and retaining pin are steel with a black oxide finish.
Is this intended for new builds or refurbishing existing rifles?
Both. The description says it is useful for custom builds and is also a good idea when refurbishing existing rifles to help ensure reliability.