The Geissele AR-15 Lower Parts Kit contains all 17 parts necessary to get your lower receiver operational - minus the trigger and pistol grip. Geissele is renowned for superbly designed, meticulously manufactured products, and these parts meet their high standards. Items in the AR-15 Lower Parts Kit are manufactured to "mil-spec" (M16 / M4) dimensions to ensure optimum fit and function in your AR rifle or carbine. The Geissele AR-15 Lower Parts Kit includes:

• Bolt catch
• Bolt catch plunger / spring / roll pin
• Mag release
• Mag release button
• Mag release spring
• Buffer retainer spring
• Safety
• Buffer retainer
• Safety detent & spring
• Triggerguard & roll pin
• Takedown detents & springs
• Pivot / takedown pins

The fire control system - trigger, hammer, disconnector (and pins) - may be the most "personal" part of any custom AR-15. Along with the pistol grip, it’s the area most customizers and custom builders prefer to select very carefully. As a result Geissele omits both components from this AR-15 Lower Parts Kit so you don’t have to spend money on parts you won’t use!