Currently out of stock across all retailers.
E C's newest metal receiver set Supports Quick Change upgrade 2.0 spring guide system and tool-less Buffer Tube removal. Also is compatible with non-quick change gear boxes, and regular buffer tubes! Original Part Number MP001A Package Includes: Anodized Aluminum Metal upper and lower receivers (no markings) Front and Rear body pins Trigger Pin Complete Magazine Catch assembly Bolt Catch, and Bolt Catch Pin Complete Selector Assembly Complete Charging Handle Assembly