NCSTAR AR-10 Blue Upper Receiver Vise Block

The NCSTAR AR-10 Upper Receiver Block is a blue anodized bench tool made to support a compatible AR-10 upper during maintenance and assembly work. It gives the vise a dedicated clamping interface instead of placing the receiver directly between vise jaws. That extra support is useful for jobs where the upper needs to stay steady while both hands are on a wrench or small part.

The block is shaped specifically around the larger AR-10 platform, so it should not be treated as an AR-15 vise block. Its rigid form helps keep the receiver positioned while the vise supplies the holding pressure. The anodized blue finish also makes the tool easy to identify among black firearm parts on a crowded bench.

Use the block with a suitable bench vise and confirm compatibility with the exact upper before applying force. It is a support fixture, not a substitute for correct torque procedures or platform-specific service instructions. Browse more gun cleaning and maintenance tools for armorer wrenches, punches, mats, and other bench equipment.

• Upper-receiver vise block for AR-10 platforms
• Blue anodized finish
• Provides a dedicated clamping interface for bench work
• Helps keep the upper steady during maintenance or assembly