The SI Enhanced Lower Parts Kit offers a convenient upgrade package whether you are assembling a new lower receiver or breathing new life into an existing build. This kit features Strike Industries Enhanced parts, including the bolt catch, magazine catch and button, pivot and takedown pins, and Strike's 60/90 degree ambi safety selector.

Kit includes:

Strike Industries Enhanced Bolt Catch

Bolt catch spring

Bolt catch plunger

Bolt catch roll pin

Strike Industries Enhanced Magazine Catch

Strike Industries Enhanced Magazine Release Button

Magazine catch spring

Strike Industries Enhanced Pivot Pin

Strike Industries Enhanced Takedown Pin

(2) takedown / pivot detent springs

(2) takedown / pivot pin detents

Strike Industries 60/90-Degree Ambi Safety Selector

Safety detent

Safety detent spring

Buffer retaining pin

Buffer retaining pin spring

(2) .154" trigger / hammer pins

Trigger spring

Hammer spring

Disconnector spring

Strike Industries products are designed by shooting experts for the shooting sportsman.

Link to parts manufacturer