:welcome:
I am certain it is.
To clarify - the trigger guard adapter rail mounts are specific to specific handguns.
The WeaponLights will fit on any of the adapter mounts.
But, if the WeaponLight has a SlimLine or other 'remote' switch then it will be specific to the handgun and may not fit or fit properly on another handgun, although it'll secure the adapter mounts just fine.
Versions with only the constant-on shuttle switch will not have a "C" or "D" on the end of the model number (W115C, P112D etc), they'll simply be the Series P or M number followed by three numbers 10x where x indicates which handgun type the trigger guard adapter rail mount is for.
There was also a P001 and an M001 which did not feature a trigger guard adapter mount or remote switch.
I'm not aware that the W-Series had W001 or W10x variants.
SureFire has several handgun WeaponLight families or Series:
Classic
Nitrolon (P-Series)
Millennium (M-Series)
Military (W-Series)
X-Series
If you start with a P114C or P114D then you can replace the P-Series light with the light from an M114x or W114x (x = C or D), or a remoteless M10x or P10x.
I hope this helps
