NcSTAR AR-15 Upper Receiver Block – Gunsmithing Tool

The NcSTAR AR-15 Upper Receiver Block is a bench-mounted gunsmithing tool designed to securely hold AR-15 upper receivers during assembly, disassembly, or maintenance.

• Compatibility: AR-15 upper receivers (mil-spec)
• Material: Durable polymer construction
• Function: Secures upper receiver for barrel nut installation and maintenance
• Mounting: Designed for bench vise use
• Application: Gunsmithing, AR-15 assembly and maintenance