Wild guess: friction and a lot of tension.
This is something that’s been driving me crazy ever since I field-stripped my first auto-loader: in the re-assembly, for practically every gun, the recoil spring guide rod seems to have a very precarious seating to the barrel lug. I’ve never had a problem getting the guide-rod seated properly and all my guns work just fine…BUT what the heck keeps the guide-rod from slipping off the barrel lug during recoil and “snap-back.?” I mean the slide goes thru some pretty aggressive motions, no? ….sorry if this is a stupid question because I overlooked something obvious, but any thoughts would be really appreciated..Thanks
the guide rod is not connected to the barrel..... the muzzle end sits in a channel or tube..... the locking block end becomes captured by the take down lug ..... you feel the spring compressing as you make the alignment.... the lug is inserted or flipped and now the guide rod/recoil spring is captured by the limited slide travel..... does this make sense?
yep..thanks for the explanation.
as pointed out by vamarine..... this varies depending on the gun.... but my description is based on the most common beretta/taurus/sig/cz/tz styles and in no way encompasses all brands, models, styles or variations.....
here is a link to show how the various parts of the 1911 work together, some nice animations here.... notice how the barrel moves by the link.... not a cam or lugs like the new browning based designs
In my Glock the guide rod only rests against the notch in the barrel during assembly. The fact that it isn't perfectly in the half moon notch when I take it back apart means nothing. The notch is only there to position and hold the rod and spring until reassembly. After that it rests against the frame.