Mul-T-Lock Top Guard Lock

The Mul-T-Lock Top Guard is a reinforced surface-mounted rim lock with a vertical deadbolt and integrated anti-pry guard plate. It is purpose-built for NYC apartment doors as a secondary lock, mounting on the door surface alongside the existing mortise or knob lock. Its steel guard plate prevents spreading attacks and pry-bar manipulation -- common forced-entry methods in urban settings.

Common Applications

• NYC apartment doors (primary or secondary lock)
• Studio and one-bedroom apartment upgrades
• Co-op and condo unit doors
• Ground-floor and garden-level apartments
• Doors without frame reinforcement
• Tenant security upgrades (no frame modification)

Key Features

• Vertical deadbolt with hardened steel bolt
• Integrated anti-pry guard plate
• Surface-mounted (no mortise pocket required)
• Attacks the most common NYC forced-entry method (prying)
• Mul-T-Lock high-security rim cylinder included
• Heavy-gauge steel construction
• Mounts with through-bolts for maximum strength
• Compatible with standard NYC apartment doors

The Top Guard directly addresses how NYC apartment break-ins actually happen: spreading the door frame with a pry bar to bypass the deadbolt. Its steel guard plate distributes force across a wide area, making pry attacks far more difficult. For tenants who cannot modify their door frame or add a police lock, the Top Guard provides commercial-level pry resistance with surface mounting.