Tonight, we had dinner with the Hobbit Lass. Here she is with Bittygirl and Spiderboy. The three of them have grown some in the last 10 years. Longtime Hobbit Hole denizens may recall Hobbit Lass as Samwise's daughter.
After doing some interwebz research, I've come up with pictures with "normal" rails, and "cutaway" rails, but no smooth dustcovers.
My guess is all the P220STs started with regular Glock-type rails, but after requests/complaints, started cutting some away, as shown here. To this day, all other models come in "R" and "non-R" models, referring to the rail. My guess they learned a lesson with the early P220STs, and now offer almost everything with or without a Glock-type rail. But both forms are factory-kosher.
Tonight, we had dinner with the Hobbit Lass. Here she is with Bittygirl and Spiderboy. The three of them have grown some in the last 10 years. Longtime Hobbit Hole denizens may recall Hobbit Lass as Samwise's daughter.