New never used.

The Geissele SSA-E trigger installs in your lower receiver in the same way that a Mil-Spec trigger is installed. It uses a standard .154” trigger and hammer pin so it will fit in any Mil-Spec stripped lower receiver. It features a curved trigger bow that helps to keep your finger in the same spot while pulling the trigger, allowing for better trigger control and accuracy. Not only does it work in 5.56 or .223 AR-15 rifles, but it works in .308 AR-10 pattern rifles. Each trigger is precision EDM wire cut from heavy duty tool steel with a durable black finish giving you the reliability and durability you can depend on.

Features:
Uses Mil-Spec .154” trigger pins for maximum compatibility with lower receivers
Works with 5.56/.223 and .308 AR pattern rifles
Designed after the same trigger used by U.S. Special Forces
Smooth two stage 3.5 lb. trigger pull
EDM wire cut from heavy duty tool steel
Great for precision shooting and reliable for home defense/duty use
Note: Trigger pull weights are approximate and may vary slightly between rifles.