It functions but i wouldn't trust it - Centennial Defense Systems MOD3 Stainless Steel Guide Rod Assembly w/o Spring for Glock

The Stainless guide rod allows for the spring to be replaced so that you can tune the poundage for the guide rod assembly. The actual process of swapping the springs is straightforward but for the constant threat of slipping and launching the washer into orbit. The rod itself is out of spec, just a hair too short. Thus, it works for determining the best spring weight for a custom Glock build, but I would not trust an out of spect rod for anything other than as a temporary test part. As soon as my new part arrives this rod will be exiled to my extra parts bin.