Spike's Tactical Lower Receiver Parts Kit Standard, 223 Rem/556NATO, Rounded Hammerand Hammer Spring, Trigger and Trigger Spring, Disconnector and Disconnector Spring, Safety Selector, Detent, Spring, Bolt Catch, Roll Pin, Plunger, Magazine Catch, Trigger Guard, A2 Pistol Grip. Black Finish SLPK101
Specifications:

Type	Lower Parts Kit
Model	Standard
Dimensions	AR Platform
Size	Multi-Caliber
Material	Stainless Steel
Action
Trigger	Standard
Safety
Thread Pattern
Finish	Black Oxide
Bolt Type
Hand
Hammer Type
Max Capacity