All Remington 1100 28 gauges are LW's, and have serial numbers starting with the letter "J".
A couple small companies, with Claude Purbaugh being the best know, converted 12 gauge and "Standard Weight" 20 gauges to 28 gauge and .410 bore for competition skeet shooting. The conversion entailed installing a sleeve in the barrel, modifying the extractor and ejector, and modifying the magazine shell catch. The result was a heavy shotgun much for suited for shooting skeet than carrying very far.
