ACE Handset Flat Trigger + Sear Kit Installation Guide

Introduction

Welcome to the ACE Handset Flat Trigger + Sear Kit Installation Guide. This guide will walk you through the installation process step-by-step and assist in customizing your kit for optimal performance. Follow the instructions provided and refer to the labeled photos for clarity.

Tools & Materials Needed

• Required Tools: 3/32" Punch, Small Hammer, Bench Block (optional)

Step-by-Step Instructions

Flat Trigger + Sear Kit Installation

STEP 1:

Punch out the 2 pins on the side of the Handset Frame.

STEP 2:

Remove the FCU from the Handset Frame. Be careful not to lose the spring and magazine release button that will fall out from the Frame.

STEP 3:

Punch the pin from the FCU to release the Trigger Assembly.

STEP 4:

Punch the pin from the Trigger Assembly.

STEP 5:

Remove the Pin, Spring, and Sear.

STEP 6:

Install the parts into the Flat Face Trigger Housing. Ensure the Sear notch faces upwards.

STEP 7:

Make sure the spring is inside the FCU before installing the Trigger Assembly..

STEP 8:

Place the FCU into the frame but do not fully seat it. Take the Magazine Release button and slide it into the frame, ensuring the notch faces toward the rear of the Handset. Start seating the FCU into the frame while pressing on the magazine release to ensure it catches properly.

STEP 9:

Install the 2 pins to secure the FCU into the frame.

Enjoy your upgraded handset!

Sear Kit & Customization

Labeled Parts of the FCU

The Fire Control Unit (FCU) includes the following components:

• Trigger

• Sear

• Sear Spring

• Reset Spring

• Controller Hook (customizable for Quest 2 or Quest 3/s)

• Rear Stop

Sear Options

The kit provides three Sear options:

Springs

The kit includes springs with varying strengths:

• Red Spring: Strong

• Yellow Spring: Standard (Recommended for the sear spring)

• White Spring: Soft (Recommended for the reset spring)

Tip: Feel free to mix and match springs to achieve your desired trigger feel. Spring caps can be used to adjust spring power for a hardened feel.

Starting Recommendation:

• Use the Yellow spring for the sear spring.

• Use the White spring for the reset spring.

• Pair these with your sear of choice.

Feel free to mix and match springs to achieve your desired trigger feel.

Spring caps can be used to increase the power of the spring, providing a hardened feel. This is primarily for those who prefer a heavier OEM trigger feel.

Note:

• Using spring caps with an overly heavy setup may cause in-game issues, such as the gun jumping around or acting glitchy.

The rear stop replaces the rear pin and foam to provide a firm wall/stop feel after the break.

• Rear Stop: Hard, precise stop with minimal overtravel.

• Pin & Foam: Softer, "mushy" feel after the break.

Final Adjustments

Once the trigger feels the way you prefer, go in-game to the hut settings and adjust the sensitivity. Reduce the sensitivity setting by a few numbers below the "full pull" threshold for optimal performance.

Calibration & Final Adjustments

1.  Adjust in-game sensitivity settings in the hut menu.

2.  Reduce sensitivity slightly below the "full pull" threshold for improved performance.

THUMB REST INSTALL:

Tools:

1 x 2mm Allen Key

1 x Pliers/Nut Driver, or equivalent to hold a 3mm nut

Materials:

1 x Thumb Rest Print

1 x 35mm Bolt

1 x 3mm Nylon Nut

Take the Thumb Rest Print and pop it onto the left side over the Take Down Lever.

Take the bolt and slide it from the right side (Opposite side of the Take Down Lever)  of the handset, using the nylon nut with pliers to hold it, and tighten it with a 2mm Allen key. Note: the screw may need some force to turn into the nylon nut, this will help prevent it from coming loose.