Ground Control HD H-Blocks (Aluminum & Plastic!)

The Ground Control HD Aluminum and Plastic H-Blocks. Sold in pairs, and compatible with both GC HD 60mm and GC HD 72mm frames.

Choose from Anodized Black or Silver Aluminum - and Black, Red, or White in Plastic - to match or give contrast to your GC HD frames. One size fits all GC HD2 60mm and 72mm frames.