The one that started the series: AR15 V1. A full schematic under your build so the diagram — not YouTube at 0.25x speed — answers where that pin goes.

Product features
- Non-slip bottom for stability
- Vibrant colors for lively designs
- Hemmed edges for durability
- Multifunctional use for various tasks
- Made from 100% Neoprene material

Care instructions
- Use warm water and dish soap to clean spots off your pad. It's not necessary to soak the whole pad. For hard-to-clean spots use a soft-bristled brush.