Colt's commitment to quality and excellence are evident in every piece that leaves the factory. This complete lower assembly is no exception to that rule. Built from the factory as a complete lower unit not stripped from a rifle outside of the factory, you can rest assured you are purchasing a genuine Colt product. The lower features a standard Semi-automatic fire control group, Mil-Spec Trigger, Carbine Stock, and standard trigger guard. The lower is made from forged aluminum and features a hard coat anodized matte black finish.

Specifications and Features:
Colt M4 AR-15 Complete Lower Assembly SP633784
5.56mm NATO (accepts .223 Remington)
Forged Lower Receiver
Semi Automatic Fire Control Group
Mil-Spec Trigger
A2 Pistol Grip
Carbine Stock
Mil-Spec Diameter Receiver Extension (Buffer Tube)
Mil-Spec Buffer
Carbine Spring
Standard Trigger Guard
Complete Lower Assembly
Hard Coat Anodized
Matte Black