ELFService Trigger TheELF Drop-In service Trigger has been built for law enforcement and military duty. The only AR-15 trigger using aerospace gradesealed bearings, making for an incredibly smooth and fast triggerpull. Our exclusive .043 double double wound polished piano wirehammer spring ensures full ignition of any ammo including .308and 7.62×39. Pull weight from 4lbs to 7lbs is so easy to adjustit can be done in seconds without removing the trigger from  yourlower receiver. A second-to-none AR-15 drop-in trigger system that is strong and light, made of wire EDM machined, hardened A2 toolsteel and  lightweight aircraft-grade aluminum. Installationcan be done in minutes using your ARs original hammer andtrigger pins. The Service trigger may be ordered with a curved orstraight shoe. Theamazingly short takeup, glass-rod crisp break and next to zeroover-travel  can be compared to the finest custom 1911triggers. Adjustability puts you in  charge based on yourpreference. If you are looking for the finest adjustable  triggerfor your service AR-15 platform, this is the trigger system for you. Features Fits any mil-spec AR-15 (Large pin Colt available) Absolutely Drop-Safe regardless of pull-weight  Adjustable from 4lbs to 7lbs without removing from lower   Exclusive double double wound hammer spring and heavy hammer ensure proper ignition of any ammunition Very short pull and reset allows for rapid follow up shots and greater accuracy Sturdy trigger assembly designed for rugged, trouble-free use; Made of lightweight aircraft-grade aluminum and hardened steel  Unique design of disconnect allows full 1/4 width eliminating possibility of wear and double-firing  High performance trigger and hammer needle bearings for smoother and faster firing  100% made in America with a Lifetime Guarantee!  TheELF Drop-In service Trigger has been built for law enforcement andThe amazingly short takeup, glass-rod crisp break and next to zeroover-travel