The ELF 3-Gun Drop-In Trigger has been built for winning competitions. The only AR-15 trigger using aerospace grade sealed bearings"" making for an incredibly smooth and fast trigger pull. The amazingly short take-up"" glass-rod crisp break and next to zero over-travel can be compared to the finest custom 1911 triggers. Adjustability puts you in charge based on your current use. If you are looking for the finest adjustable trigger for your AR-15 platform"" this is the trigger system for you.