Glock will refer to this as a Generation 3.5. It has been discontinued for a couple of reasons. However it's nothing tragic, I personally prefer this frame texture over the new Gen 4.
The RTF was designed as a test case for law enforcement. It came back to be too rough for daily carry against clothing and wore through it quickly. However, this is nothing that can't be overcome with a bit of sanding to knock off the sharp corners. If you look closely the "little knoby thingy's" are pyramid shaped with multiple sides. Taking down the points will really aid in comfort if you would like to do this.
The new Gen 4's do have several new features, the dual recoil spring, especially the .40 is an outstanding feature. The reversable mag release is now discontinued due to a large outcry from Law Enforcement and Military individuals... not to mention it's a HORRIBLE idea.
Enjoy your Gen 3.5!!! It's good gun by way of Glocks. Shoot the hell out of it and have a good time.
Dutch1911
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