# Pneumatic rivet/fastener tool accessory MEGA 5140029 — knee gun with adjustable head

**URL:** https://aio.lv/en/product--mega-5140029--10784144
**Data updated:** 2026-03-12 10:12 (EET)
**Category:** Power Tools Accessories
**Manufacturer:** MEGA
**Manufacturer code:** 5140029
**EAN:** 5903755140029
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 13.99 €
**Prices and availability valid until:** 2026-07-27 23:59
**Price without VAT (21%):** 11.56 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--mega-5140029--10784144

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.89 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

Knee Gun MEGA 5140029 is an accessory for pneumatic rivet and fastener tools that provides a knee-controlled actuation with an adjustable head. Designed to attach to compatible pneumatic fastening systems, it enables hands-free or extended-reach operation, improves ergonomics in repetitive fastening tasks, and allows angle adjustment for access in confined spaces.

## Long description

Knee Gun MEGA 5140029 with adjustable head is a pneumatic rivet/fastener tool accessory designed to install blind rivets in confined or awkward positions. The tool features a rotating head that can be set at 90° and 180° angles and ships with four interchangeable rivet nozzles for diameters 2.4 mm, 3.2 mm, 4 mm and 4.8 mm.
Advantages
The adjustable head enables access to tight spaces and corners by rotating between 90° and 180°. Four changeable rivet nozzles cover common rivet sizes, reducing the need for additional adapters. The pneumatic design provides consistent pulling force suitable for standard blind rivets used in metal and sheet fastening tasks.
Suitable for
 Installing blind rivets in confined or angled workspaces
 Sheet metal assembly and repairs
 Automotive trim and bodywork fastening
 Construction and maintenance tasks requiring riveted joints
Key specifications
 Brand: MEGA
 Model / MPN: 5140029
 EAN: 5903755140029
 Tool type: Pneumatic rivet/fastener tool accessory
 Adjustable head angles: 90°, 180°
 Interchangeable rivet nozzle diameters: 2.4 mm, 3.2 mm, 4 mm, 4.8 mm
How to use
Connect the accessory to a compatible pneumatic rivet gun or air tool following the manufacturer's connection specifications. Select and install the appropriate rivet nozzle for the rivet diameter you intend to use. Position the rotating head at the required angle (90° or 180°) to reach the fastening location, place the rivet, and actuate the pneumatic tool according to the main tool's operating instructions. After use, clean the nozzles and swiveling joint and store the accessory in a dry place.
Usage recommendations
Use with the correct pneumatic pressure and rivet types specified for your main rivet gun. Regularly inspect the rotating head and nozzle threads for wear; replace worn nozzles to maintain reliable rivet installation and to avoid damage to the accessory or workpiece.

## FAQ

### How much does the MEGA 5140029 knee gun — pneumatic rivet tool accessory cost, and is it available for purchase?

The price is 13.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 234 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 06.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All MEGA products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized MEGA service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/10784144/60033827_large.webp