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Works with Most Locks

Lock Armor™ is compatible with nearly all mortise lock systems from manufacturers such as Marks USA and C.E.L. If your security door lock and lock guard looks similar to these, then Lock Armor™ will work for you! If you have a concern, please email us a photo and we'll gladly help you out.

Marks Mortise
4-Way/CEL Mortise
Marks Mortise
Marks Mortise Lock Example
CEL Mortise Lock Example
Marks Mortise Example 2

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Certain Locks Not Compatible

Lock Armor™ is not compatible with lock systems from Kwik-Set, Schlage, Papaiz or slimline style. Although these locks are marketed as "secure", it is widely known in the industry that these locks do NOT provide adequate protection against forced entry. We are currently in the process of developing Lock Armor™ for these lock systems as well. So, please stay tuned...

Kwik-Set or Schlage Type  

Papaiz, Pado or slimline

not compatible
not compatible
Papaiz Lock Example