Magpul AR-15 BEV All-in-One Vice Block

SKU# 2124 | by Magpul
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Manufacturer's Description

The BEV Block (Barrel Extension Vise) is an all-in-one, compact vise block tool for AR-15/M4 assembly operations of barrel nuts, flash hiders, etc.

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

The BEV can also be turned over and used as a mag well vise block to support the lower receiver during maintenance, etc.

Made in U.S.A.


  • Provides support for all AR-15/M4 upper and lower receivers
  • Solidly engages barrel extension with steel lugs
  • Full-length steel support shank
  • Body made from the same high-quality polymer as other Magpul products 


  • BEV„ Block "“ AR-15/M4
    • Weight: 11.2 oz.

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Jeremy R.
United States

Magpul block

I purchased this block so I could assembly my aero upper that wouldn't fit a standard block style vise clamp. It is high quality and includes pins. I'm giving this 4 stars instead of 5 because it only has the pin hole for a front takedown pin. It's very rigid but under high torque of the barrel nut it tends to flex. Dustin from here was very helpful and shopping was very quick.

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