This is a Spike's Tactical Upper chambered in 223 Remington, model STU5025-R9S.
Spikes complete upper assemblies will arrive to you inspected" tested" and ready to drop-in and go to work. Spikes maintains the same high standard of tolerances and attention to detail as the uppers they use for complete rifle builds. Every built upper and complete gun is test fired before leaving Spikes facility for function check before it reaches you.
Features:
Forged Upper Receiver
16 M4 Profile Barrel;Phosphate M16 Complete BCG;A2 Front Sight Base Pinned
