Building or maintaining an AR-15, AR-10, or LR-308 requires a solid workbench setup—and the Wheeler Delta Series Upper Receiver Action & Picatinny Rail Vise Block is a smart multi-purpose tool that keeps your upper receiver locked down securely while you work. Whether you're replacing handguards, installing optics, or doing receiver maintenance, this vise block cradles your upper by engaging the takedown lugs underneath, so there's zero shift or movement once it's clamped.

The real value here is its flexibility. Beyond holding AR uppers, the Delta Series also grips Picatinny rails—whether they're mounted to a flat-top, hi-rise, or integrated rail platform. That means a single tool handles upper receiver work and rail-specific tasks (like aligning free-floating tubes to your upper). Pair it with a standard bench vise, and you've got a stable platform for everything from optic mounting to rail swaps.

Built from extruded and machined aluminum, this block is tough enough for repeated shop use and designed to the tolerances that keep your receiver sitting square and still. If you're doing any serious AR work yourself—whether it's a one-time build or regular maintenance—having a dedicated upper receiver vise block beats improvising and risking damage to your parts.

Building or maintaining an AR-15, AR-10, or LR-308 requires a solid workbench setup—and the Wheeler Delta Series Upper Receiver Action & Picatinny Rail Vise Block is a smart multi-purpose tool that keeps your upper receiver locked down securely while you work. Whether you're replacing handguards, installing optics, or doing receiver maintenance, this vise block cradles your upper by engaging the takedown lugs underneath, so there's zero shift or movement once it's clamped.

The real value here is its flexibility. Beyond holding AR uppers, the Delta Series also grips Picatinny rails—whether they're mounted to a flat-top, hi-rise, or integrated rail platform. That means a single tool handles upper receiver work and rail-specific tasks (like aligning free-floating tubes to your upper). Pair it with a standard bench vise, and you've got a stable platform for everything from optic mounting to rail swaps.

Built from extruded and machined aluminum, this block is tough enough for repeated shop use and designed to the tolerances that keep your receiver sitting square and still. If you're doing any serious AR work yourself—whether it's a one-time build or regular maintenance—having a dedicated upper receiver vise block beats improvising and risking damage to your parts.