This AR-15 LPK is made up of Mil-Spec components for maximum compatibility with all lower receivers. It not only comes with the small springs, detents, and pins, but also a Mil-Spec trigger group, A2 pistol grip and trigger guard. 

This LPK Includes:

• A2 pistol grip
• Grip screw and lock washer
• 90-degree standard safety selector
• Safety detent and detent spring
• MIL-SPEC bolt catch
• trigger guard
• Bolt catch plunger and roll pin
• Magazine catch and spring
• Magazine release button
• Pivot pin and takedown pin
• (2) Pivot/Takedown Pin Detents
• (2) Pivot/Takedown Pin Detent Springs
• Buffer retaining pin and spring
• Mil-Spec trigger and hammer
• Trigger and hammer springs