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Magpul Industries Barrel Extension Device Block
California Proposition 65 Warning

This product can expose you to chemicals including lead, known to cause cancer and birth defects. For more info visit P65Warnings.ca.gov.

Magpul Industries

Barrel Extension Device Block

$49.95
$47.45
Sale Price
Available California compliant

Magpul Industries BEV Block, Fits AR-15, Vise Block Tool, Polymer Construction, Black MAG536-BLK

Key Details
Brand Magpul Industries
Manufacturer Part Number MAG536-BLK
UPC 873750000145
SKU MPIMAG536
Current Stock 512 available
Quantity Updated Apr 24, 2026 2:40 PM
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Purchase Requirements
  • Final availability is confirmed at checkout.
In-Store Pickup Required: All firearm purchases must be picked up at our Beverly Hills location after background check completion.
Product Description

The 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. 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.

Features
  • Provides support for all AR15/M4 upper and lower receivers
  • Solidly engages barrel extension with steel lugs
  • Full-length steel support shank
Specifications
UPC: 873750000145
Manufacturer: Magpul Industries
Manufacturer Part #: MAG536-BLK
Model: Barrel Extension Device Block
Type: Vise Block