Wheeler Delta Series Lower Receiver Magazine Well Vise Block for KAC SR25, LR-308 Polymer

The Wheeler Delta Series Lower Receiver Magazine Well Vise Block for KAC SR25 and LR-308 rifles is a must-have holding solution for shooters who maintain their own rifles. This polymer vise block inserts directly into the magazine well of any "LR" style lower receiver that accepts SR25-type magazines, creating a rock-solid foundation for barrel cleaning, function checks, and light gunsmithing work. Whether you're running the Tipton Best Gun Vise in your shop or clamping it down to your workbench, this block gives you the hands-free stability you need to work safely and efficiently on your rifle.

The design reflects real-world gunsmith needs. The center section rotates 180 degrees in 15-degree increments and locks at your chosen angle, letting you access different parts of the lower receiver without constant repositioning. A built-in hammer stop protects your receiver during dry-fire function testing. The magazine well arm is removable, so if you need extra rigidity for heavier work, you can clamp the block itself in a bench vise. The solvent-resistant polymer construction won't scar or mark your receiver, and fasteners for both Tipton vise mounting and direct workbench installation are included in the box.

This block is purpose-built for LR-308 and SR25-pattern lowers, so if that's your platform, fit and function are guaranteed. Polymer construction keeps cost down while delivering the durability you need for repeated use, and the non-marring surface gives you confidence working on finished receivers. It's equally useful for routine field-stripping and cleaning as it is for helping a gunsmith set up a build or diagnose a feeding issue.

Key Features

• Magazine well insertion design holds SR25/LR-308 pattern lowers securely without modifications
• Compatible with Tipton Best Gun Vise aluminum rail mounting system (fasteners included)
• Also mounts directly to any workbench with included fastening hardware
• Center section rotates 180° in 15° increments and locks into place for flexible work angles
• Removable magazine well arm allows the block itself to be clamped in a bench vise for maximum rigidity
• Built-in hammer stop prevents lower receiver damage during function checks
• Solvent-resistant polymer is non-marring and safe for finished receivers
• Integral bolt service station holds bolt in position for extractor pin service and inspection

Specifications

Frequently Asked Questions

Will this vise block work with my LR-308 lower receiver?

Yes, as long as your lower is an "LR" style pattern that accepts SR25-type magazines. Insert the block into the magazine well and secure it using either the Tipton Best Gun Vise mounting system or the included workbench fasteners.

Can I use this without a Tipton vise?

Absolutely. The block comes with fasteners for direct workbench mounting, so you can clamp it permanently or temporarily to your reloading bench, workbench, or any flat surface. If you need extra rigidity, you can also remove the magazine well arm and clamp the block itself in a standard bench vise.

What's included in the package?

The Wheeler Delta Series block includes all fasteners needed for both Tipton Best Gun Vise rail mounting and direct workbench installation, so you're ready to work right out of the box.

Can I use this for serious gunsmithing work?

This block is designed for cleaning and light gunsmithing operations. For heavy work requiring maximum stability, the removable magazine well arm can be detached and the block itself clamped in a bench vise for added rigidity.