Set beinhaltet: Federn: • Bolt Catch Spring • Buffer Retainer Spring • Disconnector Spring • Hammer Spring • Magazine Catch Spring • Pivot Detent Spring • Selector Spring • Takedown Detent Spring • Trigger Spring (4 ½ to 5 ½ lbs. (2 - 2.5kg) Trigger Pull) Pins: • Bolt Catch Plunger • Bolt Catch Roll Pin • Hammer Pin • Pivot Detent • Selector Detent • Takedown Detent • Trigger Pin • Buffer Retainer SI’s Signature Enhanced Lower Parts: • Enhanced Bolt Catch • Strike Magazine Catch • Strike Magazine Catch Button • Enhanced Pivot Pin • Enhanced Takedown Pin • SI Selector Lever • SI Selector End Plate • SI 60-90° 3-in-1 Selector Shaft Fire Control Group: • Trigger • Hammer • Disconnector Kompatibel mit Mil-Spec AR-15 Lower Receiver NICHT kompatibel: Bolt Catch, Bolt Catch Roll Pin, Pivot Pin und Takedown Pin sind nicht mit AR-10 Lower Receiver kompatibel.