> For the complete documentation index, see [llms.txt](https://docs.wcproducts.com/welcome/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.wcproducts.com/welcome/shop-accessories/2026-field-elements/assembly-instructions/trench.md).

# Trench

{% hint style="warning" %}
Rivets are not included with the Bump.

3/16" rivets with a .250"–.438" grip length ([WCP-0450](https://wcproducts.com/products/rivets)) are required for the assembly steps below.
{% endhint %}

## Step 1

Mount the Riser Inside Body to the Riser Bottom using 3/16" rivets.

<figure><img src="https://2095731447-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fhu8VQsZoeLOsfVEARoHm%2Fuploads%2FrcRuJUDyJUVJf9C0ieBt%2FTrench%20-%20Step%201.svg?alt=media&amp;token=b49f3106-1462-4739-8f41-ec750d55610e" alt=""><figcaption></figcaption></figure>

## Step 2

Slide the Fixed Riser Outside Body onto the Assembly from Step 1 and secure using 3/16" rivets.

<figure><img src="https://2095731447-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fhu8VQsZoeLOsfVEARoHm%2Fuploads%2F1kHWAKVhflmW2frtxSoi%2FTrench%20-%20Step%202.svg?alt=media&amp;token=f3f1c06f-2889-4841-bee4-61771259a295" alt=""><figcaption></figcaption></figure>

## Step 3

Mount the Outside Skirt onto the assembly from Step 2 using 1/4"-20 x 3/4"L bolts and nuts.

<figure><img src="https://2095731447-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fhu8VQsZoeLOsfVEARoHm%2Fuploads%2FMkTWJ850dzPHZ7AgF5Ax%2FTrench%20-%20Step%203.svg?alt=media&amp;token=1d2c9ff8-6aad-4785-8867-30c948575eee" alt=""><figcaption></figcaption></figure>

## Step 4

Mount the Side Skirts onto the assembly from Step 3 using 3/16" Rivets.

<figure><img src="https://2095731447-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fhu8VQsZoeLOsfVEARoHm%2Fuploads%2FEZjt6WtK6abc1H0Uqyyh%2FTrench%20-%20Step%204.svg?alt=media&amp;token=1399c9d9-e3e2-4be4-a148-6618fe09d101" alt=""><figcaption></figcaption></figure>

## Step 5

Mount the Inside Skirt onto the assembly from Step 4 using 1/4"-20 x 3/4"L bolts and nuts.&#x20;

3/16" Rivets need to be added in the Rivet Locations marked below.

<figure><img src="https://2095731447-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fhu8VQsZoeLOsfVEARoHm%2Fuploads%2FtMn2xJapy4JYG3MEK9Hi%2FTrench%20-%20Step%205.svg?alt=media&amp;token=99ebabb4-f9bd-4712-a400-8cd943b57079" alt=""><figcaption></figcaption></figure>

## Step 6

Mount the Fixed Arm to the Assembly from Step 5 using 3/16" Rivets.

<figure><img src="https://2095731447-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fhu8VQsZoeLOsfVEARoHm%2Fuploads%2F9AgggJ6xoSp36FbQT8ys%2FTrench%20-%20Step%206.png?alt=media&amp;token=efe57cfc-e049-4a60-848f-aba19cbc7339" alt=""><figcaption></figcaption></figure>

## Step 7

Mount the April Tag Mounts to the Fixed Arm from Step 6 using 3/16" rivets.

<figure><img src="https://2095731447-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fhu8VQsZoeLOsfVEARoHm%2Fuploads%2FhgDYnPFdzOkacXdNTtit%2FTrench%20-%20Step%207.svg?alt=media&amp;token=87d7b7e6-259c-4dec-bb63-ee131bc7610e" alt=""><figcaption></figcaption></figure>


---

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