The Magpul BEV™ Block (Barrel Extension Vice Block) is a versatile vise block designed to securely support AR15/M4 upper and lower receivers during maintenance, assembly, builds, and other gunsmithing work. Designed to fit into common bench vises, the BEV Block provides a secure interface while supporting the receiver internally to help prevent unwanted flexing or twisting.

For upper receiver work, the top end of the BEV Block engages the lug recesses inside the barrel extension using steel lugs and a full-length steel support shank. An O-ring post engages the bolt carrier for additional support, while the included security pin helps maintain the BEV Block's proper position within the upper receiver.

When flipped over, the bottom end of the BEV Block engages an AR15/M4 magazine well, allowing the lower receiver to be securely positioned in a vise for maintenance and other work.

The BEV Block combines steel engagement components with durable, non-marring Magpul polymer on the engagement surfaces beyond the barrel extension lugs. Weighing just 11.2 ounces and made in the USA, the Magpul BEV Block is a practical addition to an AR15/M4 maintenance and workbench setup.

Key Features:

• Designed for AR15/M4 upper and lower receivers
• Fits common bench vises
• Steel lugs engage barrel extension recesses
• Full-length steel support shank provides internal support
• O-ring post engages bolt carrier for additional support
• Included security pin helps maintain proper positioning
• Bottom end engages standard AR15/M4 magazine wells
• Durable, non-marring Magpul polymer construction
• Supports upper and lower receiver maintenance and builds
• Made in the USA
• Weight: 11.2 oz