Steve,
The link will be detemined by the vertical "stacking" dimension of the individual gun when the lower feet of the barrel are cut to rest on the slide stop. The standard link is a #3(.278"). The next longer link is a #4(.283"),and then a #5(.288"). Your Gunsmith will fit the proper link to time the link down, or arc of the barrel, to match the timing of the slide as it moves rearward out of the upper lugs and out of battery. And, of course the reciprocal of the slide returning to battery, the barrel arcing upward into the upper lugs, and the lower feet locking up securely on the slide stop.
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The link will be detemined by the vertical "stacking" dimension of the individual gun when the lower feet of the barrel are cut to rest on the slide stop. The standard link is a #3(.278"). The next longer link is a #4(.283"),and then a #5(.288"). Your Gunsmith will fit the proper link to time the link down, or arc of the barrel, to match the timing of the slide as it moves rearward out of the upper lugs and out of battery. And, of course the reciprocal of the slide returning to battery, the barrel arcing upward into the upper lugs, and the lower feet locking up securely on the slide stop.
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