Recently seen some early ARs marked AR15 .223, and without the fenced mag release, all in the 018XXX ser range, also many XM16E1s, some with property marks, and some without, all with unfenced mag releases, in the 200XXX ser range or so. But found an XM with a fenced mag release, the first one I have ever seen. One had the 3 pronged flash supp too. That was 1 out of 1100! Wierd. Any input here? With and without chrome carriers and bolts, or mixed. A real hodge-podge of stuff.
FYI these weapons are still in service here in Australia, oddly enough some with A2 stocks and HGs, All 1/12, some with 1/12 bbls with A2 front sights, others are steel barrels. Some even have the case defelector URs too. So althought the receivers are original, over the yrs, all have had a few re-fits or FTRs as they call em here.