I looked on the website. I assume it is the same for all models, but not sure.
LG-401
Instinctive Front Activation
Fits Models: 1911 and 1991A1 full-size single-stack frames, including: Auto-Ordnance, Les Baer, Colt, Kimber, Olympic Arms, Para-Ordnance, Sig Sauer.
* Ambidextrous-safety models require shortened safeties, available from Crimson Trace. Kimber 1911 owners with ambi-safety must see a gunsmith.