---
product_id: 733336449
title: "Mil-Spec Carbine Buffer Kit - AM-21-BUF FER-KIT"
brand: "NBS"
price: "HK$464"
currency: HKD
in_stock: true
url: https://www.desertcart.hk/products/733336449-mil-spec-carbine-buffer-kit-am-21-buf-fer-kit
store_origin: HK
region: Hong Kong
---

# Mil-Spec Carbine Buffer Kit - AM-21-BUF FER-KIT

**Brand:** NBS
**Price:** HK$464
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Mil-Spec Carbine Buffer Kit - AM-21-BUF FER-KIT by NBS
- **How much does it cost?** HK$464 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/733336449-mil-spec-carbine-buffer-kit-am-21-buf-fer-kit)

## Best For

- NBS enthusiasts

## Why This Product

- Trusted NBS brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

Mil-Spec Carbine Buffer Tube / Receiver Extension

6 Position
7075-T6 Aircraft Grade Aluminum
Hard Anodized

Carbine Buffer Spring
Castle Nut/Receiver Nut
Mil-Spec Receiver End Plate
Carbine Recoil Buffer (Colors may vary)
Lifetime Warranty Provided by AR-15Discounts.com
American Made!

## Features

- 6 Position
- 7075-T6 Aircraft Grade Aluminum
- Hard Anodized
- Carbine Buffer Spring
- Castle Nut/Receiver Nut
- Mil-Spec Receiver End Plate
- Carbine Recoil Buffer (Colors may vary)
- Lifetime Warranty Provided by AR-15Discounts.com
- American Made!

## Images

![Mil-Spec Carbine Buffer Kit - AM-21-BUF FER-KIT - Image 1](https://ar15discounts.com/wp-content/uploads/2016/12/nbs-mil-spec-carbine-buffer-receiver-extension-kit-ar15discounts_564.jpg.optimal.jpg)
![Mil-Spec Carbine Buffer Kit - AM-21-BUF FER-KIT - Image 2](https://ar15discounts.com/wp-content/uploads/2016/12/mil-spec-buffer-tube-kit-247x154.jpg.optimal.jpg)
![Mil-Spec Carbine Buffer Kit - AM-21-BUF FER-KIT - Image 3](https://ar15discounts.com/wp-content/uploads/2016/12/nbs-mil-spec-carbine-buffer-receiver-extension-kit-ar15discounts_322-247x211.jpg.optimal.jpg)
![Mil-Spec Carbine Buffer Kit - AM-21-BUF FER-KIT - Image 4](https://ar15discounts.com/wp-content/uploads/2016/12/ar-15-mil-spec-stock-buffer-kit-247x247.jpg.optimal.jpg)
![Mil-Spec Carbine Buffer Kit - AM-21-BUF FER-KIT - Image 5](https://ar15discounts.com/wp-content/uploads/2016/12/nbs-mil-spec-carbine-buffer-receiver-extension-kit-ar15discounts_564-247x211.jpg.optimal.jpg)

---

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**Shop now:** [https://www.desertcart.hk/products/733336449-mil-spec-carbine-buffer-kit-am-21-buf-fer-kit](https://www.desertcart.hk/products/733336449-mil-spec-carbine-buffer-kit-am-21-buf-fer-kit)

---

*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-05-14*