AR-15 – Drop-In Trigger – Two Stage 3.5–4 lb – TTU 3-Gun Flat
PLEASE DOUBLE CHECK DETAILS AND FITMENT BEFORE PURCHASE.
Wilson Combat built this Tactical Trigger Unit for shooters who want a self-contained drop-in trigger with a flat face, a clean two-stage break, and a faster, lighter pull for AR-15 builds. This specific version is the TTU 3-Gun Flat, factory-rated at 3.5–4 lb and aimed at buyers who want a quicker trigger feel without messing with adjustment screws or tuning.
This is not the Match Flat version. The other flat TTU option in this family is the TTU Match Flat, which uses a slightly heavier 4–4.5 lb pull and is commonly sold with broader AR-15 / AR-10 fitment language. This listing is for the 3-Gun Flat AR-15 model in black.
Fitment
Fits AR-15 pattern rifles that accept standard AR trigger components and standard trigger pin geometry.
Does NOT fit
Does not fit AR-10 based on the product information tied to this SKU. Does not fit commercial Colt rifles that use proprietary .169" trigger pins or Colt lowers with pinned-in sear blocks.
What it does
This is a self-contained drop-in two-stage trigger unit with a flat trigger shoe, positive reset, and no user adjustment screws. It is designed to give a crisp break and more repeatable control without turning trigger installation into a garage therapy session.
Why it’s worth it
If the buyer wants the lighter, more competition-leaning flat TTU in this family, this is the one. Compared to the Match Flat, the 3-Gun version is the faster-feeling option and makes more sense for AR-15 builds where a lighter two-stage pull is the goal.
Specs
- Wilson Combat Tactical Trigger Unit
- Drop-in trigger unit
- Two-stage trigger
- Flat trigger shoe
- 3.5–4 lb pull weight
- Black finish
- Dry film lube finish
- No adjustment screws
What’s included
One complete Wilson Combat TTU 3-Gun Flat drop-in trigger unit.
Tools needed
Basic AR lower receiver bench tools and standard trigger installation tools.
Install notes
This is a drop-in trigger unit, but correct installation and full post-install function testing still matter. If the buyer specifically needs AR-10 compatibility or wants the heavier flat version, the Match Flat listing is the better choice.
Verify before you buy
Verify you are buying for a standard AR-15 pattern rifle and not an AR-10. Confirm your lower uses standard AR trigger pin geometry and does not use proprietary Colt large-pin dimensions or sear-block features.
⚠ Trademark & Compatibility Disclaimer
IronKells Armory LLC is not affiliated with, endorsed by, or sponsored by any manufacturer mentioned. All trademarks are the property of their respective owners and are used only to identify compatibility or fitment.
⚠ Install & Compatibility Disclaimer
Installation should be performed by a qualified armorer or gunsmith. Improper installation, modification, or use may affect firearm safety and reliability. Buyer is responsible for verifying compatibility, performing proper function testing, and ensuring safe operation.
