FSDC B1 Lever Action Lock-Out Bracket Accessory Product for FSDC-TL4000RKD GUNLOK Trigger Lock When used with the TL4000 Trigger Lock, the system will lock out some Lever Action Rifles. A list of these rifles can be found on the packaging images Prevents Unauthorized Use. Easy to Install. EN/ES/FR Instruction Sheet FSDC-TL4000RKD GUNLOK Sold Separately. 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. Use of this product, including its use after discharging firearms in poorly ventilated areas, cleaning firearms, or handling ammunition may result in exposure to lead. Have adequate ventilation at all times.