Obsidian Arms Upper Receiver Vise Block AR-15 - OA-VBUA

Obsidian Arms Upper Receiver Vise Block AR-15

Secure your build without damaging your receiver.

The Obsidian Arms AR-15 Upper Receiver Vise Block is a must-have tool for any builder or gunsmith who wants a stable and damage-free way to work on their upper receiver. Machined from durable high-density polyethylene (HDPE), this vise block firmly secures your upper in a bench vise without marring or distorting the finish—even under heavy torque during barrel installation or optic mounting.

Designed for universal fitment with all standard mil-spec AR-15 upper receivers, the block includes integrated locking pins for a rock-solid hold during critical work. At just 16 ounces, it’s lightweight yet exceptionally stable, making it ideal for at-home or professional use.

Features

• HDPE construction resists cracking and won’t scratch your upper
• Integrated locking pins ensure a secure, stable fit
• Compatible with standard mil-spec AR-15 upper receivers
• Works with both flat-top and carry-handle uppers
• Lightweight and easy to maneuver in your bench vise
• Made in the USA

Specifications

• Material: High-Density Polyethylene (HDPE)
• Compatibility: AR-15 mil-spec upper receivers
• Includes: Vise block and locking pins
• Weight: 16 oz
• Use: Gunsmithing, upper receiver maintenance/building