Wilson Combat TRTTU3G Tactical Trigger Unit 3-Gun Drop-in Trigger with

The Tactical Trigger Unit is an all-new modular trigger unit that can be easily installed in any AR pattern rifle by the end user in less than 1 minute without tools or even removing your selector. Wilson Combat has created a drop-in trigger unit with an ultra-crisp trigger pull that does not require any fine tuning or adjustment by the end user, the ttu is a totally self-contained trigger module.