ProMag AR-10 Lower Receiver Vise Block — 308 Win

This ProMag vise block is designed to securely clamp into the magazine well of AR-10 / .308-caliber lower receivers to prevent movement or damage during repair, assembly, and cleaning. It uses a heavy-duty, injection-molded polymer construction and a double-sided form to accommodate a range of AR-10 style lowers. The block is compatible with common AR-10 variants including ArmaLite, DPMS, Remington, and SR-25 platforms. The part is finished in black and is intended as a hands-on maintenance and gunsmithing aid.

Key Specifications

• The block fits **AR-10 / .308-caliber AR-type** lower receivers for maintenance and assembly.
• Compatible with **ArmaLite, DPMS, Remington, and SR-25** lower receiver designs and many similar variants.
• Constructed from **injection-molded polymer** for a non-marring work surface.
• The product finish is **black** for a low-profile appearance.
• The design is **double-sided** to provide broader fit across AR-10 style lowers.
• Designed for the **AR-10 platform** mounting interface and magazine well dimensions.
• Intended for use with **308 Win / 7.62x51mm NATO** AR-type rifles (per manufacturer labeling).
• Identified function: **lower receiver magazine well vise block** for gunsmithing, assembly, and cleaning.
• Manufactured **in the USA**, as stated by the manufacturer.

This vise block supplies a straightforward, practical way to stabilize AR-10 lower receivers during routine maintenance and repairs. Its polymer construction and double-sided profile make it a useful tool for gunsmiths and owners who perform regular assembly, disassembly, or cleaning on .308/7.62 NATO AR-type rifles.