Magpul AR15/M4 Barrel Extension Vise BEV Block

The Magpul BEV Block (Barrel Extension Vise) is an all-in-one, compact vise block tool for AR15/M4 assembly operations of barrel nuts, flash hiders, etc.

The Magpul BEV Block mounts securely in a vise and provides support for both billet and forged upper receivers. It engages the barrel extension with solid steel lugs and a full length support shank to prevent flexing. Steel hardness is optimized for durability, yet won't damage the barrel extension, and Magpul Polymer is used for all other engagement surfaces to protect the aluminum receiver. An o-ring post uses the bolt carrier for additional stability and the included pin keeps the upper in the proper position.

The BEV can also be turned over and used as a mag well vise block to support the lower receiver for maintenance or other operational needs.

Made in the USA.

PROVIDES SUPPORT FOR AR15/M4 UPPERS AND LOWERS

Solidly engages barrel extension with steel lugs

Full-length steel support shank

Body is constructed of the same high-quality polymer as other Magpul products

The Magpul AR15/M4 Barrel Extension Vise BEV Block is an essential tool designed for efficient AR assembly. This compact vise block firmly secures your upper receivers—both billet and forged—while flawlessly engaging the barrel extension with robust steel lugs. Crafted from optimized steel, the BEV Block ensures durability without risking damage. Its full-length support shank prevents flexing, and the polymer body safeguards your aluminum receivers. An O-ring post and included pin enhance stability during use. Versatile enough to flip over for lower receiver support, the BEV Block is a must-have for any serious gunsmith. Proudly made in the USA, weighing only 11.2 oz.

WARNING This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov. You must be 18+ years old to shop and or purchase on our website and 21+ to purchase Ammunition/Firearms. Check local laws before ordering as you certify you are of legal age and satisfy all federal, state, and local legal/regulatory requirements. There are NO returns or exchanges on armor, firearms, ammunition, PPE equipment. Ammo ships UPS ground to the lower 48 states.
We reserve the right to fix any critical errors.