Midwest Industries MI-LRB AR Lower Receiver Block

$36.95 41 in stock

Heavy-duty polymer lower receiver block for Mil-Spec AR-15 assembly and maintenance. Features gas block roll pin installation, trigger guard section, and mounting holes for bench or vice use.

Fits: AR-15

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Midwest Industries AR Lower Receiver Block

The Midwest Industries MI-LRB is a purpose-built work station for AR-15 lower receiver assembly, maintenance, and gunsmithing. This American-made polymer block transforms tedious assembly tasks into straightforward operations.

Key Features

  • Mil-Spec Compatible: Designed specifically for Mil-Spec AR-15 forged lowers
  • High-Strength Polymer Construction: Durable material resists marring and wear
  • Versatile Mounting Options: Parallel edges for vice clamping and mounting holes for bench attachment
  • Specialized Work Stations: Dedicated sections for gas block roll pin installation and trigger guard assembly
  • Multi-Purpose Design: Holds lower receivers for fire control pin assembly, complete firearm maintenance, and other gunsmithing tasks
  • Built-in Organization: Integrated small parts tray keeps hardware organized during assembly

Specifications

  • Weight: 12 oz
  • Height: 6.5 inches
  • Length: 5.0 inches
  • Width: 1.25 inches
  • Made in the USA

Why You Need It

Whether you're building your first AR or maintaining a well-used rifle, this block secures your lower receiver safely while freeing both hands for precise work. The thoughtful design eliminates fumbling with makeshift solutions and protects your receiver from bench vise damage.

Features

  • high strength polymer construction
  • mounting holes for attachment to bench or alternative work surface
  • 4 points of contact for vice use
  • allows lower to be held for multiple aspects of assembly
  • able to hold complete firearm for maintenance
  • small parts tray
  • weight: 12.0oz, height: 6.5 length: 5.0" width: 1.25"
  • 100% made in usa

Attributes

Color: Blue
Description: AR Tool
Material: Polymer
Model: LRB
Type: Vise Block
Weight: 12 oz