---
product_id: 42929162
title: "COMPX NATIONAL USPS-L-1172C National Mailbox Lock C9100 (Lock with 3-Keys) | GOLD Color 3 Keys"
brand: "compx national"
price: "€ 43.21"
currency: EUR
in_stock: true
category: "Compx National"
url: https://www.desertcart.com.cy/products/42929162-compx-national-usps-l-1172c-national-mailbox-lock-c9100-lock
store_origin: CY
region: Cyprus
---

# 3-key security system clockwise operation includes spring clip & mounting nut COMPX NATIONAL USPS-L-1172C National Mailbox Lock C9100 (Lock with 3-Keys) | GOLD Color 3 Keys

**Brand:** compx national
**Price:** € 43.21
**Availability:** ✅ In Stock

## Summary

> 🔐 Lock in your mail’s safety with style and ease!

## Quick Answers

- **What is this?** COMPX NATIONAL USPS-L-1172C National Mailbox Lock C9100 (Lock with 3-Keys) | GOLD Color 3 Keys by compx national
- **How much does it cost?** € 43.21 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/42929162-compx-national-usps-l-1172c-national-mailbox-lock-c9100-lock)

## Best For

- compx national enthusiasts

## Why This Product

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

## Key Features

- • **Compact & Durable:** Metal construction in a sleek gold finish fits perfectly on any mailbox.
- • **Triple-Key Access:** Secure your mailbox with 3 precision-cut keys for ultimate control.
- • **Complete Mounting Kit:** Comes with spring clip and mounting nut for easy installation.
- • **Trusted Brand Quality:** COMPX NATIONAL’s #9 ranked lock in wall-mounted mailboxes ensures reliability.
- • **Smooth Clockwise Operation:** Designed for effortless locking and unlocking every time.

## Overview

The COMPX NATIONAL USPS-L-1172C mailbox lock features a durable metal build with a modern gold finish, includes 3 keys, a spring clip, and mounting nut for easy installation. Operating clockwise, this compact lock is a top choice (#9 in wall-mounted mailbox locks) for secure, reliable mailbox protection.

## Description

......

## Features

- Includes spring clip, mounting nut and (3) keys
- Does not include cam/latch
- C9100 operates clockwise

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01CEUXCQC |
| Additional Features | Key Lock |
| Best Sellers Rank | #11,596 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #9 in Wall-Mount Mailboxes |
| Brand Name | COMPX NATIONAL |
| Color | Silver |
| Control Method | Touch |
| Controller Type | Hand Control |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,388) |
| Included Components | Lock |
| Item Dimensions | 2 x 1 x 1 inches |
| Item Weight | 4 ounces |
| Lock Type | Key Lock |
| Manufacturer | COMPX NATIONAL |
| Manufacturer Part Number | USPS-L-1172C |
| Material Type | Metal |
| Model Name | C9100 |
| Model Number | C9100 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Number of Pieces | 1 |
| Recommended Uses For Product | Mailbox Security, Wall-Mounted Lock |
| Shape | Round |
| Style Name | Modern |
| UPC | 049793391063 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** COMPX NATIONAL
- **Item dimensions L x W x H:** 2 x 1 x 1 inches
- **Lock Type:** Key Lock
- **Material:** Metal
- **Special Feature:** Key Lock

## Images

![COMPX NATIONAL USPS-L-1172C National Mailbox Lock C9100 (Lock with 3-Keys) | GOLD Color 3 Keys - Image 1](https://m.media-amazon.com/images/I/51a8entFxcL.jpg)
![COMPX NATIONAL USPS-L-1172C National Mailbox Lock C9100 (Lock with 3-Keys) | GOLD Color 3 Keys - Image 2](https://m.media-amazon.com/images/I/41bTQ1-Pa9L.jpg)

## Questions & Answers

**Q: If all I have is an empty hole in my mail slot door, will this kit give me everything I need to install the lock?**
A: This lock does not include the tailpiece that mounts on the back of the lock and is what turns to lock the mailbox door. That is sold separately and the part number is: CompX C7120. Thank you, NLS Products.

**Q: l need to buy the latch and the lock together?  The previous owner took everything with him.**
A: No, this lock does not include the latch.
You get exactly what is pictured.
It's odd that the seller would represent otherwise.

**Q: can the mailman open the lock**
A: I am a mailman. We have a key that open cluster boxes, but we do not have a master key that will open this lock.

**Q: Mail boxs locks for door**
A: Hi in some towns the post office doesn’t change mail box keys anymore so I had go buy my locks & 
Install them , so be careful , look at what you need & Match them on amazon locks & pick the best one

## Frequently Bought Together

- CompX USPS-L-1172C National Mailbox Lock C9100 (Lock with 3-Keys)
- Prime-Line S 4140 Mailbox Lock – Replacement, Multipurpose Mailbox Lock for Several Brands – ILCO 1003M Keyway, Opens Counter-Clockwise with 90º Rotation, Nickel Finish (1 Set)

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**Shop now:** [https://www.desertcart.com.cy/products/42929162-compx-national-usps-l-1172c-national-mailbox-lock-c9100-lock](https://www.desertcart.com.cy/products/42929162-compx-national-usps-l-1172c-national-mailbox-lock-c9100-lock)

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*Product available on Desertcart Cyprus*
*Store origin: CY*
*Last updated: 2026-08-24*