FirearmSystemsQuick answer: The Triggered Company Disruptor is a true drop-in cassette for mil-spec AR-15 lowers, so installing it takes no gunsmithing, fitting or permanent modification. You separate the upper and lower, remove the factory fire control parts and selector, drop in the Disruptor cassette with its included 3-position selector, secure it with the included anti-walk pins, reassemble, and run the manufacturer’s unloaded function check before any live fire. Before you start, confirm your rifle has an M16-profile BCG and a buffer that meets the published minimum. Most problems on forced reset builds trace back to one of those two parts.
Safety first: Clear your workspace of all ammunition before you begin. Follow the instructions supplied with your trigger. If anything feels unclear, stop and use a qualified gunsmith or contact Triggered Company support. Laws vary by location and change, so confirm federal, state and local compliance before purchase, installation or use.
Prefer video? Watch our step-by-step Disruptor install walkthrough.
What’s in the box
Every Disruptor package includes:
- The Triggered Company drop-in cassette forced reset trigger
- A replacement safety selector (right-hand or ambidextrous, as selected)
- Anti-walk trigger pins
Packages that include a bolt carrier group or buffer also contain those parts.
Before you install: compatibility checklist
These checks prevent most install-day headaches.
| Check | Requirement (from the Disruptor product page) |
|---|---|
| Lower receiver | Most mil-spec AR-pattern lowers |
| Bolt carrier group | M16-profile BCG required |
| Buffer | Minimum H2 (H3 recommended) for carbine extensions and 16″ or shorter barrels; standard rifle buffer for 20″ A2 stocks |
| Pins | Anti-walk trigger pins (included, and recommended) |
| Selector | Use the 3-position selector supplied with the Disruptor |
Confirm the rifle runs well first. Enhanced triggers tend to expose problems that were already there, like weak magazine springs, poor lubrication, gas leakage or worn springs. Start with a clean, properly lubricated rifle.
Don’t mix selector parts. The Disruptor is designed to work with the 3-position selector specified by The Triggered Company. Mixed parts can cause symptoms that look like trigger problems but are really selector or fitment issues.
Check your carrier. If you’re not sure whether your carrier is an M16-profile or a semi-automatic profile, see our M16-profile BCG page. The M16 profile keeps the full rear section of the carrier that a semi-automatic carrier has machined away.
How to install the Disruptor: step-by-step overview
Step 1: Clear the rifle and the workspace
Unload the rifle, remove the magazine, visually and physically check the chamber, and take all ammunition out of the room.
Step 2: Separate the upper and lower receiver
Push out the takedown and pivot pins and separate the upper from the lower. Set the upper aside. You’ll check the carrier before reassembly.
Step 3: Remove the factory fire control parts and selector
Remove the existing trigger, hammer, disconnector and their springs and pins, then remove the factory safety selector. Keep the parts together in case you ever need to return the rifle to its original configuration.
Step 4: Install the Disruptor cassette and the 3-position selector
Set the drop-in cassette into the lower and install the 3-position selector that came with your Disruptor (right-hand or ambidextrous). Never force parts into place or try to “make it fit.” If anything binds, stop and recheck compatibility, alignment and selector installation.
Step 5: Secure the retention hardware
Install the included anti-walk trigger pins and secure them as the manufacturer directs.
Step 6: Confirm the carrier and buffer, then reassemble
Confirm your upper has an M16-profile BCG and your buffer meets the minimum for your setup, then put the upper and lower back together.
Step 7: Perform the unloaded function check
Before any live fire, perform the manufacturer’s unloaded function check exactly as written, in every selector position. If the rifle doesn’t pass cleanly, do not fire it. Recheck the installation and contact support.
Troubleshooting the Disruptor
Most issues fall into a few categories: compatibility, maintenance, ammunition or magazines, and the general condition of the rifle.
| Symptom | Common causes to check | Next step |
|---|---|---|
| Dead trigger or failure to fire | Selector alignment or retention hardware not secured; ammunition; dirty, dry or worn rifle; too little reciprocating mass | Rerun the unloaded function check, inspect the install, confirm carrier and buffer meet requirements, then contact support |
| Trigger won’t move in a firing position, or selector feels wrong | Incorrect or incomplete selector installation; parts compatibility | Stop. Verify you’re using the supplied selector and that it’s installed per the manufacturer’s guidance |
| Inconsistent reset | Fouling or lack of lubrication; gas system, springs, carrier or gas key issues | Clean and lube, confirm the rifle cycles reliably, then rerun the function check |
| Won’t pick up the next round, or bolt doesn’t fully return | Magazine spring quality; buffer or spring condition; gas leaks, loose gas key, worn rings | Try known-good magazines and ammo, then inspect the cycling system |
| Stovepipes or trapped cases | Dirty chamber or bolt; extractor or ejector wear; under-gassed operation | Clean and inspect the bolt and chamber, then evaluate the gas system |
The Disruptor product page notes that too little reciprocating mass is the most common cause of a dead trigger on a forced reset build. For more symptoms and fixes, see our full Disruptor install and troubleshooting guide.
When to stop and get help
Stop troubleshooting on your own and contact a gunsmith or the manufacturer if:
- The rifle doesn’t pass the unloaded function check
- The selector doesn’t feel right
- You see unusual wear, peening or metal shavings
- The rifle behaves inconsistently across magazines and ammunition after basic maintenance
Triggered Company support: contact@triggeredcompany.com. The Triggered Company offers a 12-month warranty against manufacturing defects for the original retail purchaser. Damage from improper installation, modification or tampering can void that coverage. Firearm Systems: (623) 252-9593.
Installing the ambidextrous Disruptor
The right-hand and ambidextrous Disruptor install the same way. The only difference is the selector hardware. The Ambi Disruptor is an option on the Disruptor product page ($25 more than right-hand).
Related guides
- The Triggered Disruptor: How to Install + Troubleshoot
- Watch: Installing the Triggered Company Disruptor (Video Walkthrough)
- Ultimate Triggered Company Disruptor Legal Guide (Federal vs. State)
- Forced Reset Trigger Legal Status Explained
Check your state and local law before you buy, install or use a forced reset trigger. Laws change, and these guides are general information, not legal advice.
Shop the Triggered Company Disruptor → · Add an M16-profile BCG →
Frequently asked questions
Do I need a gunsmith to install the Disruptor?
No. The Disruptor is a self-contained drop-in cassette for mil-spec AR-15 lowers, with no fitting, filing or permanent modification. If you aren’t confident working on AR fire control parts, use a qualified gunsmith.
What do I need before installing the Disruptor?
An M16-profile bolt carrier group, which the product page lists as required, and a buffer that meets the published minimum: H2 minimum (H3 recommended) for carbine extensions and 16-inch or shorter barrels, or a standard rifle buffer for 20-inch A2 stocks. The anti-walk pins and 3-position selector are included.
Does the ambidextrous Disruptor install differently?
No. The right-hand and ambidextrous versions install the same way. Only the selector hardware is different.
What if my rifle doesn’t pass the unloaded function check?
Don’t fire it. Recheck the installation and selector alignment, confirm your carrier and buffer meet the requirements, and contact Triggered Company support at contact@triggeredcompany.com or Firearm Systems at (623) 252-9593.
Why is my forced reset trigger dead after the first shot?
The most common cause on a forced reset build is too little reciprocating mass, meaning a carrier or buffer that doesn’t meet the requirements. Selector alignment, unsecured pins, ammunition, and a dirty or dry rifle are other causes to check.
Is there a warranty on the Disruptor?
The Triggered Company offers a 12-month warranty against manufacturing defects for the original retail purchaser. Damage from improper installation, modification or tampering can void that coverage.
