Black River Manufacturing ZULU Collapsible AK Stock Gray. Designed with both function and comfort in mind it includes two interchangeable cheek padsone for optic height and one for iron sight alignmentensuring optimal eye positioning no matter your setup. With a 9-position adjustable length of pull it allows for a fully customizable fit and the textured rubber butt pad provides a secure comfortable shoulder lock. Compatible with all fixed trunnion AK variants this stock is the perfect upgrade for precision and adaptability. Specifications for Black River Manufacturing ZULU Collapsible AK Stock: Manufacturer: Black River Manufacturing Stock/Brace Material: Aluminum Features of Black River Manufacturing ZULU Collapsible AK Stock 9 position adjustable Rubber butt pad Package Contents: Black River Manufacturing ZULU Collapsible AK Stock Optic height and iron sight cheek pads Black River Manufacturing BRZUAKCSGY: ZULU Collapsible AK Stock Gray