The ProMag PM123A is a three-piece upper and lower receiver vise block set designed to secure AR-15/M16 receivers during maintenance. These heavy-duty blocks clamp flat top and carry-handle upper and lower receiver components to minimize movement and reduce the risk of damage while you repair, assemble, or clean your rifle. Constructed for workshop use, the set is made in the USA.
Key Specifications
- The set includes 3 pieces to support both upper and lower receiver work.
- Constructed of impact-resistant glass-filled nylon for durable, non-marring support.
- Designed for AR-15/M16 upper and lower receivers, including flat top and carry-handle configurations.
- Provides secure clamping to help prevent movement or damage during repair, assembly, and cleaning.
- Intended for use in a vise or bench fixture to stabilize receiver components.
- Offered as a heavy-duty vise block set suitable for routine maintenance tasks.
- Manufactured in the United States.
This PM123A vise block set provides a practical, durable solution for gunsmithing and routine maintenance. Its three-piece configuration and impact-resistant construction make it well suited for workshop use where stable, non-marring support is required for AR-15/M16 receivers.
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.




