Wheeler Delta Series AR-15 Upper Receiver Action Vise Block Clamp

The Wheeler Delta Series AR-15 Upper Receiver Action Vise Block Clamp is a gunsmithing essential for anyone doing their own AR-15 maintenance, barrel work, or receiver servicing. Whether you're torquing a barrel nut, removing a stuck barrel, or simply cleaning and maintaining your upper receiver, this vise block holds your receiver securely without twisting, crushing, or marring the finish—something that matters when you're working on a precision tool.

Built from high-pressure, solvent-resistant polymer, the Delta Series block is designed to handle the demands of the workbench. It accommodates both left-hand and right-hand Mil Spec A2 upper receivers with carry handles, as well as flat-top style receivers. The included receiver insert features a gas tube alignment system, which is a thoughtful addition that helps keep your gas tube properly aligned during barrel installation and torquing—protecting your receiver from unintended damage and saving you headaches during reassembly.

This is the kind of tool that pays for itself the first time you avoid marring an expensive upper or having to deal with a damaged receiver. If you're running a home shop or just prefer having proper tools for your own work, the Wheeler Delta Series vise block takes the guesswork and risk out of holding your receiver steady.

Key Features

• Fits Mil Spec A2 upper receivers (left and right-hand) with carry handles
• Compatible with flat-top style receivers
• Gas tube alignment system prevents receiver crushing during barrel installation
• High-pressure polymer construction resists solvents and workshop wear
• Secures receiver in vise without twisting or marring finish
• Includes receiver insert

Specifications

Frequently Asked Questions

What AR-15 upper receivers does this vise block fit?

The Wheeler Delta Series block is designed for Mil Spec A2 upper receivers in both left-hand and right-hand configurations with carry handles, as well as flat-top style receivers. Other AR-15 variants may be adapted with special attention to non-conforming surfaces or features. Note: it does not work with left-handed uppers that have an upward-flipping dust cover.

What can I use this vise block for?

This block is ideal for torquing barrel nuts, removing stubborn barrels, and general AR-15 gunsmithing, maintenance, and cleaning. It keeps your receiver stationary and protected in the vise while you work.

Why does the gas tube alignment system matter?

The included gas tube alignment system helps ensure your gas tube stays properly aligned when you're installing a barrel and torquing the barrel nut. This prevents accidental crushing or damage to the receiver during this critical assembly step.

Will this damage my receiver's finish?

No. The polymer construction and secure clamping design are specifically engineered to hold your receiver firmly without twisting, crushing, or marring the finish.