---
product_id: 544135284
title: "Fast Cap Adapter - Compatible with BYRNA SD EP LE - Boost Cartridge Quick Change"
brand: "k20 tools"
price: "C$4249"
currency: NIO
in_stock: true
reviews_count: 5
category: "K20 Tools"
url: https://www.desertcart.ni/products/544135284-fast-cap-adapter-compatible-with-byrna-sd-ep-le-boost
store_origin: NI
region: Nicaragua
---

# Tool-free hand-tight design Seconds-fast CO2 cartridge swaps Aluminum build for durability Fast Cap Adapter - Compatible with BYRNA SD EP LE - Boost Cartridge Quick Change

**Brand:** k20 tools
**Price:** C$4249
**Availability:** ✅ In Stock

## Summary

> ⚡ Twist, Swap, Go — Upgrade your BYRNA game instantly!

## Quick Answers

- **What is this?** Fast Cap Adapter - Compatible with BYRNA SD EP LE - Boost Cartridge Quick Change by k20 tools
- **How much does it cost?** C$4249 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ni](https://www.desertcart.ni/products/544135284-fast-cap-adapter-compatible-with-byrna-sd-ep-le-boost)

## Best For

- k20 tools enthusiasts

## Why This Product

- Trusted k20 tools brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact & Lightweight:** Weighs just 32g with minimal footprint—carry convenience everywhere.
- • **Effortless Quick Change:** Swap CO2 cartridges in seconds without fumbling for tools.
- • **Secure & Leak-Proof Fit:** Snug installation prevents rattling and CO2 leaks during use.
- • **Universal Compatibility:** Seamlessly fits BYRNA SD, EP, LE, and Boost models for versatile use.
- • **Premium Aluminum Craftsmanship:** Anodized finish ensures durability and a sleek, professional look.

## Overview

The Fast Cap Adapter by K20 Tools is a precision-engineered aluminum accessory designed to enable tool-free, rapid CO2 cartridge changes on all BYRNA SD, EP, LE, and Boost launchers. Its anodized finish offers durability and style, while its secure fit eliminates leaks and rattles, making it an essential upgrade for professionals seeking efficiency and reliability in the field.

## Description

K20 Tools Fast Cap Adapter - Compatible with BYRNA SD EP LE - Boost Cartridge Quick Change : desertcart.ae: Tools & Home Improvement

Review: I bought the Fast Cap Adapter for my Byrna SDXL launcher and I am very happy with it. It makes changing the CO2 cartridge so much easier and faster than using the factory cap and the magazine tool. I can just twist the cap by hand and replace the cartridge in seconds. No more fumbling with the tool or worrying about losing it. The Fast Cap Adapter is also compatible with the Byrna Boost Adaptor (XL), which allows me to use 12 gram CO2 cartridges instead of 8 gram ones. This gives me more shots per cartridge and more convenience, as 12 gram CO2 cartridges are widely available everywhere. The Fast Cap Adapter is made of stainless steel and has a polished finish. It looks great and feels sturdy. It fits snugly on the CO2 chamber and does not leak or rattle. It is easy to install and remove, and does not damage the launcher or the cartridge. I highly recommend the Fast Cap Adapter to anyone who owns a Byrna SD, EP or HD launcher. It is a great accessory that improves the performance and usability of the launcher. It is worth every penny and I am very satisfied with it.
Review: Easier than using the mag key . Thank you !

## Features

- C02 Cartridge quick change adapter - Fast cap
- Compatible with BYRNA SD, EP, LE models
- These caps are designed to allow changing the C02 cartridge on All BYRNA Launcher models without using the magazine tool to open the C02 chamber.
- FEATURES: Premium quality - Tight & remove by hand - Compatible with Byrna and other C02 cartridges
- SPECS: Made of aluminum - Anodized finish
- What's in the box: (1) Fast cap adapter

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CD181XML |
| Batteries Included? | No |
| Best Sellers Rank | #198,708 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #999 in Cordless Tool Accessories |
| Color | Black |
| Customer Reviews | 4.5 4.5 out of 5 stars (312) |
| Date First Available | 31 July 2023 |
| Department | Unisex |
| Item model number | CO2-Byrna-Cap-Adapter |
| Manufacturer | K20 Tools |
| Material Type | Aluminum |
| Product Dimensions | 2.18 x 2.03 x 1.91 cm; 32 g |

## Product Details

- **Brand:** K20 Tools
- **Colour:** Black
- **Included components:** (1) Fast Cap Adapter
- **Material:** Aluminum
- **Product dimensions:** 22L x 20W millimeters

## Images

![Fast Cap Adapter - Compatible with BYRNA SD EP LE - Boost Cartridge Quick Change - Image 1](https://m.media-amazon.com/images/I/71q04PL6KCL.jpg)
![Fast Cap Adapter - Compatible with BYRNA SD EP LE - Boost Cartridge Quick Change - Image 2](https://m.media-amazon.com/images/I/61j26WcRsQL.jpg)
![Fast Cap Adapter - Compatible with BYRNA SD EP LE - Boost Cartridge Quick Change - Image 3](https://m.media-amazon.com/images/I/6135IS7ORJL.jpg)
![Fast Cap Adapter - Compatible with BYRNA SD EP LE - Boost Cartridge Quick Change - Image 4](https://m.media-amazon.com/images/I/71TmcmgGLwL.jpg)
![Fast Cap Adapter - Compatible with BYRNA SD EP LE - Boost Cartridge Quick Change - Image 5](https://m.media-amazon.com/images/I/71AkuNy2MSL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by J***F on 7 September 2023*

I bought the Fast Cap Adapter for my Byrna SDXL launcher and I am very happy with it. It makes changing the CO2 cartridge so much easier and faster than using the factory cap and the magazine tool. I can just twist the cap by hand and replace the cartridge in seconds. No more fumbling with the tool or worrying about losing it. The Fast Cap Adapter is also compatible with the Byrna Boost Adaptor (XL), which allows me to use 12 gram CO2 cartridges instead of 8 gram ones. This gives me more shots per cartridge and more convenience, as 12 gram CO2 cartridges are widely available everywhere. The Fast Cap Adapter is made of stainless steel and has a polished finish. It looks great and feels sturdy. It fits snugly on the CO2 chamber and does not leak or rattle. It is easy to install and remove, and does not damage the launcher or the cartridge. I highly recommend the Fast Cap Adapter to anyone who owns a Byrna SD, EP or HD launcher. It is a great accessory that improves the performance and usability of the launcher. It is worth every penny and I am very satisfied with it.

### ⭐⭐⭐⭐⭐ Review
*by M***R on 30 October 2024*

Easier than using the mag key . Thank you !

### ⭐⭐⭐⭐⭐ Review
*by B***C on 20 June 2025*

Très pratique

## Frequently Bought Together

- Fast Cap Adapter - Compatible with BYRNA SD EP LE HD - Cartridge Quick Change
- Byrna 12 Gram CO2 + Oiler Cartridges | 10 Count Pack | for Byrna LE/HDXL/SDXL and TCR - (9 CO2 + 1 Oiler Cylinders)
- Byrna MAX Projectiles - | Maximum Stopping Power | OC and CS Non Lethal Pepper Spray & Tear Gas Blend Balls - Non Lethal Self Defense Projectile Rounds for Byrna Launchers, 0.68 Caliber

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**Shop now:** [https://www.desertcart.ni/products/544135284-fast-cap-adapter-compatible-with-byrna-sd-ep-le-boost](https://www.desertcart.ni/products/544135284-fast-cap-adapter-compatible-with-byrna-sd-ep-le-boost)

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*Product available on Desertcart Nicaragua*
*Store origin: NI*
*Last updated: 2026-03-04*