BOG Bog Deathgrip Arca Head Black. The DeathGrip Arca-Swiss head features a centered clamping system that locks down your firearm for rock-solid accuracy even in challenging conditions. Its quick-swap design lets you change heads effortlessly giving you the versatility to adapt to any setup without missing a beat. Lightweight yet durable its built to perform without adding bulk Specifications for BOG Bog Deathgrip Arca Head: Manufacturer: BOG Color: Black Attachment Type: Arca Fabric/Material: Magnesium Package Contents: BOG Bog Deathgrip Arca Head BOG 1242113: Bog Deathgrip Arca Head Black