Q, Q-Sert Arca Swiss Mount, Converts Q-Sert to Arca, Clear Anodized Finish, Gray WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov. Adapts Q-Sert Rails to Arca-Swiss Tripod Heads 3.06" Overall Length 1.3oz Ultralight 7075 Aluminum Genuine Magpul Mlok Nuts/Hardware Product Description The ARCA Swiss Q-SERT plate adapts Q-SERT rails to the popular ARCA format. Integrated hard-stops at the end of the rails prevent the rifle from sliding off the ball-head/tripod.