• Single Top Rail with Smooth hand guard, featuring multiple holes for modular rail attachments
• Reinforced mounting hole for fixed Bipod Stud
• 7075 Billet Aluminum
• True Monolithic Continuous Upper
• Carbine Length Upper
• Hard Coat Milspec Anodizing
• Trap Door & Forward Assist Assembled
• Proprietary Barrel Nut wrench Included

Matches with the MEGA billet Lower Model 3-H