---
product_id: 280016010
title: "K&M 21120 Microphone Stand Boom Arm"
brand: "k&m"
price: "C$9559"
currency: NIO
in_stock: true
reviews_count: 5
category: "K&M"
url: https://www.desertcart.ni/products/280016010-k-and-m-21120-microphone-stand-boom-arm
store_origin: NI
region: Nicaragua
---

# 37"+ adjustable reach large wing nut locking durable black alloy steel K&M 21120 Microphone Stand Boom Arm

**Brand:** k&m
**Price:** C$9559
**Availability:** ✅ In Stock

## Summary

> 🎤 Elevate your sound game with the boom arm that means business.

## Quick Answers

- **What is this?** K&M 21120 Microphone Stand Boom Arm by k&m
- **How much does it cost?** C$9559 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/280016010-k-and-m-21120-microphone-stand-boom-arm)

## Best For

- k&m enthusiasts

## Why This Product

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

## Key Features

- • **Robust Locking System:** Large wing nut ensures rock-solid stability, so your mic stays exactly where you want it.
- • **Premium Alloy Steel Build:** Engineered for durability and sleek black finish that complements any studio or stage.
- • **Trusted by Pros Worldwide:** Join the ranks of audio experts who rely on K&M for flawless performance.
- • **Precision Telescopic Reach:** Extend your mic setup effortlessly beyond 37 inches for perfect positioning every time.
- • **Silent & Scratchless Swivel:** Adjust angles smoothly without distracting noise or wear—professional-grade finesse.

## Overview

The K&M 21120 Microphone Stand Boom Arm features a two-piece telescopic design with over 37 inches of adjustable reach, a silent and scratchless swivel joint for smooth angle adjustments, and a large wing nut locking system for secure positioning. Crafted from durable black alloy steel, it’s a trusted choice among professionals seeking reliable, high-quality audio accessories.

## Description

Two piece telescopic boom arm with 5/8" thread. Silent, scratchless swivel joint for adjustment of angle, easy tightening with large wing nut

Review: Excellent construction and works perfectly.
Review: much better and sturdier than the cheaper boom arms...

## Features

- 2-piece telescopic boom arm
- Large wing nut locking system
- Adjusts to over 37"
- durable black finish
- Choice of professionals worldwide

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B003BQ4IL2 |
| Body Material | Alloy Steel |
| Color Name | Black |
| Connector Type | 5/8" Threaded Mount |
| Customer Reviews | 4.5 4.5 out of 5 stars (71) |
| Date First Available | 6 August 2012 |
| Item Weight | 726 g |
| Item model number | 21120 |
| Material Type | Alloy Steel |
| Product Dimensions | 59.69 x 7.11 x 10.67 cm; 725.75 g |
| Size | 21120.577.55 |

## Product Details

- **Brand:** K&M
- **Colour:** Black
- **Item dimensions L x W x H:** 59.7 x 7.1 x 10.7 centimeters
- **Item weight:** 726 g
- **Material:** Alloy Steel

## Images

![K&M 21120 Microphone Stand Boom Arm - Image 1](https://m.media-amazon.com/images/I/61kEexvgIFL.jpg)
![K&M 21120 Microphone Stand Boom Arm - Image 2](https://m.media-amazon.com/images/I/81-VIwPOQWL.jpg)
![K&M 21120 Microphone Stand Boom Arm - Image 3](https://m.media-amazon.com/images/I/8167ZVDQz3L.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Just wanting to confirm the full extended length, description says "37, is that accurate?**
A: The K&M mic boom at it's full extension is a total of approximately 29" from the point at which the mic boom meets the stand to the threads where the mic clip is mounted.  There is approximately 7.75" behind that point where the boom exits the stand clamp to the rear of the boom.  Therefore, the entire length of the boom is approximately 37", but your mic reach will depend on the length of the microphone plus 29" from the point that the mic stand and boom meet.  You will get close to a 37" reach, but at that length it is necessary to hang additional weight on the back of the boom if you have a heavy mic (or bungee cords to hold up a mic such as an Electrovoice RE-20).  I have used mine with an EV RE-20 since 2018 and it has held up, but it has developed a slight bend from using it with the EV at extended lengths for days or weeks at a time.

**Q: what is the maximum extension?**
A: Hello,

Boom arm length is 800 mm. If you have any more questions, please feel free to reach out to us at any time.


Janine F.

**Q: does this come with the part that screws into the base**
A: yes

**Q: In addition to zoom can the boom twist within the mount?**
A: The boom can be moved left to right at any time.  Up and down requires tightening and loosing. The small knobs for length allows for the mic to be be turned as needed.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by A***R on 18 November 2025*

Excellent construction and works perfectly.

### ⭐⭐⭐⭐⭐ Review
*by S***T on 16 September 2017*

much better and sturdier than the cheaper boom arms...

### ⭐⭐⭐⭐ Review
*by W***M on 14 July 2019*

A good solid boom at a great price. Would have been a 5 star but I own an Atlas stand so I know what a really good one looks like.

## Frequently Bought Together

- K&M - König & Meyer 21120.577.55 - Two-Piece Telescopic Boom Arm Extra Long - Smooth, Silent and Scratch Free Position Changes - Professional Grade for all Musicians - German Made - Black
- K&M König & Meyer 26045.500.55 Stackable Microphone Stand | Flat Round Notched Stable Base | Adjustable Height Clutch | Stack Up To 5 Stands | Space-Saving Storage | Pro Grade | German Made | Black
- Shure WA371 Microphone Clip for all Shure Wireless Handheld Transmitters

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*Product available on Desertcart Nicaragua*
*Store origin: NI*
*Last updated: 2026-03-10*