LS5 Complete Trigger Group - Atrius FRS

This complete trigger group comes fully assembled with your choice of grip and trigger. The Atrius Forced Reset Selector (FRS), grip, and trigger are installed, making your trigger group ready to use right out of the box. A slip trip is also included.

Semi-Shelf models feature HK416-style laser-engraved pictograms, while Push-Pin models feature white laser-engraved pictograms.

Before ordering please review our variant compatibility page to ensure you choose the right housing type. 

Technical: Billet Aluminum trigger group for MP5 variants. Excellent ergonomic upgrade to semi-auto MP5's. Firing hand is shifted forward .6" and up closer to the bore axis .4". Ejector lever is CNC machined from 4140 alloy steel and nitride coated. 

Triggers:

• ALG ACT by Geissele – Offers a familiar, mil-spec-style trigger pull. Each ALG ACT trigger is modified for smooth, reliable operation in MP5 platforms.
• BE Accurized FRS MP5 – Developed in collaboration with Ballistic Engineering, this precision trigger is specifically engineered for the LS5 housing and compatibility with the Atrius FRS system.

Grips: For a description of your grip options please click here.

Cerakote: If you would like colored pictograms or RAL800, you can choose that as an add on. 

Lead Time: Full-Size Semi-Shelf housings currently have an estimated 4–6 week lead time.