Well, I guess it’s true confession time. I have full-length guide rods in all of my semi-auto pistols. Are they an advantage; well, some people would say; ‘No!’ My personal experience has been that they seem to improve reliability and smooth the pistol out between shots.
Do they prevent, ‘spring kink’? A lot of people, including Rob Leatham don’t think so. I’m, also, aware that Charlie Petty and Dean Speir don’t recommend them; and these guys, usually, know what they’re talking about. Still, some of the best pistolsmiths in North America have seen fit to install them in my pistols; and, after many years and many thousands of rounds, I’ve never had a problem.
The real question is; ‘If I had it to do over, again, would I do it?’ On the Glocks the answer is easy: I’d switch to Wolff Gunsprings all steel guide rods in a heartbeat. Full length guide rods would, also, go into my Browning P-35’s. As for the Colt 1911’s, well, probably not. If Rob Leatham can live without them, then, I wouldn’t spend the money twice. The only unresolved question I have in mind is, ‘What’ happens to the frame with 22# springs and hot hard ball ammo? Here, there might be an advantage to a full length rod. The well-known gunsmith who built my IPSC pistols, apparently, thought so; and, as I've said, in 20 some odd years of use I've never personally had a problem.