LS5 - ACIThe LS5 ACI is an insert that goes in a Lee Sporting LS5 Trigger Housing. It's function is to maintain compatibility between the LS5 and Atrius FRS by preventing the Atrius's lever from falling out of reach of the slip trip. It is made from a durable polyurethane in the USA. The LS5 ACI should be placed inside your LS5 Housing before the FRS. Insert the LS5 ACI in the rear of the trigger pocket. Please note, a slip trip is required to activate the

Buying an ACI

For comparison

The ALG ACT trigger will come modified for smooth function in MP5's

it will require modification (refer to our instructions page for modification guidelines)

Sportsman Structured Baseball Cap

-Full mass hammer combined with full power hammer spring for reliable ignition

allowing you to move freely and with ease

Easy to install

Limited edition extended length S Handguard

About: This complete trigger group comes with your choice of grip

preventing hammer override

Full-Size LS5's include 50D buffer to short stroke bolt carrier