The Real Avid Lug-Lok Upper Vise Block secures AR-15 upper receivers by engaging the barrel lugs inside the star chamber to provide a stable work platform. Precision machined from aircraft-grade aluminum, the block slides into the upper receiver to transfer torque from the receiver to the steel barrel lugs. Adjustable vise pins and a lock knob allow controlled positioning and prevent unwanted rotation during high-torque tasks.
Key Specifications
- Fits calibers: .223/5.56 for AR-15 uppers.
- Material: aircraft-grade aluminum for a non-marring contact surface.
- Finish: satin as listed in product attributes.
- Dimensions: 1.60 x 7.70 x 16.55 (as provided).
- Includes: 2 stainless steel vise pins for adjustable working angles.
- Compatibility: Mil-Spec uppers (designed to fit precisely).
- Locking: upper receiver lock knob to hold the block seated in the star chamber.
- Engagement: star chamber locking lugs interface with barrel lugs to carry torque.
- Packaging: clam pack per product attribute.
The Lug-Lok Upper Vise Block is built for practical workshop use where preserving receiver integrity matters. By transferring torque to the barrel lugs and offering multiple secure working angles, it supports safer, more controlled installation and maintenance tasks on AR-15 uppers.
This description was generated with AI and may contain errors. Verify specifications and legal restrictions with the manufacturer before purchase. Provided “as-is” without warranties or guarantees.




