Midwest Industries Lower Receiver Block, Polymer Construction, Fits 223 Remington/556NATO Receivers, Blue MI-LRB MILRB

Lower Receiver Blocks high strength polymer construction!

• AR-15 Lower Receiver Block Weight: 12 oz
• AR-15 Height: 6.5” Length: 5.0” Width: 1.25”
• AR .308 Lower Receiver Block Weight: 12.2 oz
• AR .308 Height: 6.5” Length: 5.0” Width: 1.25”
• Allows for gas block roll pin installation
• Mounting holes for attachment to bench or alternative work surface
• 4 points of contact for vice use
• Trigger guard installation section
• Allows lower to be held for multiple aspects of assembly
• Fire control pin assembly
• Able to hold complete firearm for maintenance
• Small parts tray
• 100% Made in USA