M4E1 Upper Build Kit, 16″ 5.56 Mid-Length Barrel, 15″ Quantum M-LOK Handguard – Anodized Black (Includes Epsilon 556 & Raptor CH)Deals / By 15DEALS ADMIRAL M4E1 Upper Build Kit, 16″ 5.56 Mid-Length Barrel, 15″ Quantum M-LOK Handguard – Anodized Black (Includes Epsilon 556 & Raptor CH) Aero Precision Get The Deal Post navigation ← Previous PostNext Post →