The Midwest Industries Lower Receiver Block is a high-strength, blue, polymer construction block specifically designed for use with 223 Remington/556NATO Receivers. This American-made tool simplifies key tasks in building AR-style firearms, boasting features such as a gas block roll pin installation section and a trigger guard installation section.
Specs
| Model No. | MWMI-LRB |
| Model | LRB |
| Manufacturer | Midwest Industries |
| Color | Blue |
| Material | Polymer |
