I would sincerely appreciate if someone could provide a link to the Smith & Wesson CS45 Schematics.

Brownell's does have schematics for most every other model, maybe a different model's schematic will show you what your looking for.Schematics for Smith & Wesson® - World's Largest Supplier of Firearm Accessories, Gun Parts and Gunsmithing Tools Smith & Wesson has parts lists on the web, but no schematics. http://www.smith-wesson.com/wcsstore...ist_Retail.pdf Hope this is some help.

That was a big help! Thank you.

FWIW, I followed the link to the the S&W parts list (thanks SAR4937) and was perplexed trying to find the CS45. There were three "MCS45"s listed, each with a letter suffix; either S, C or D. I figured the D was for DAO but couldn't figure out the S and C. Mine doesn't have a letter suffix at all so I called S&W to find out which one I have.

First call the cust. svce. rep said D for DAO, S for Stainless, C for Compact. I asked her if there are different size CS45's and she didn't know, but said apparently so, and mine is an older model because it doesn't have a letter. A while later I called back and got a different cust svce rep and he said C is for Carbon (as in non-stainless metal). He also said the suffix is just for parts ordering and the guns were never issued with a letter suffix in the model. Also, the "M" is for model, so MCS45S is a stainless model CS45 for parts purposes. The M threw me because I'm used to seeing a number after an M, not a letter. Again, fwiw.

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In the Cheif's Special model line ...

D=DAO
S=Stainless steel slide
C=Carbon steel slide (blue)
M=Model

As previously mentioned, MCS45S identifies a 'Model Chief's Special 45 Stainless'.

The M can be confusing when it's followed by another letter instead of a number, but it's a common thing when dealing with the Chief's Special (MCS), Sigma (MSW) and SW99 (MSW, too).

In everything other than the CS series the letter 'C' denotes either a model number (in the Sigma line) or the 'compact' model (like the MSW99990L40C, for example, or the M&P 40c), or the use of Scandium in the alloy frames of some guns (SW1911SC). Might be another instance I'm forgetting off the top of my head, too.

S&W hasn't exactly been known for their uniformity of assigning model designations or for using some easily recognized manner to select model designations.

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Retired L/E - firearms instructor & armorer