Description The Pulsar Forward (DFA) Metal Scope Adapter attaches DFA to riflescopes with an objective lens of 56mm. This accessory is made of durable aluminum alloy and features an improved quick release lever. Included in Package Cover ring adapter Features Attaches DFA to riflescopes with objective lens of 56mm Made of durable aluminum alloy Improved quick release lever Specifications Lens Objective 56mm Material Aluminum Alloy