The Chinese system of manufacture other than factory triangle 26 (factory number 296) which made all its own parts. Is that the stem has parts produced all over China they are shipped to assembly shops and put together whith what is sent. Milled or stamped makes no difference. The Receivers may be done the same way and assembled then the factory code and serial numbers added. They do not have a system like many other countries that had updates I do not believe that they went from milled to stamped pinned barrels from screwed in barrels at any particular serial number range. I have been told that the shops stamp the codes on as they need them. With several codes coming from one shop. This makes it appear that they have a large factory complex throughout China. The ammunition is found the same way with over 30 know headstamps. They may use the factory codes for ID as to what units they go to but I am not even sure thay have any meaning other to make them look like they have allot of factories. Study the various guns you get and you may find a mixed bag of milled or stamped parts. The factory 26 guns are always the same as they progress in serial range. all the ones up to and including the 9 million range were still using the stock of Russian supplied parts. The Russian parts were only used on Factory 26 guns.
So in that case Howie, and based upon what you've seen of the 306 rifles we've recently gotten, when, approximately, do you think they were made?
From what I've pieced together, it appears as though one large batch of 306's was brought in by Tradex and distributed to their dealer network. All the guns appear to be fresh out of Chinese PLA stores, though have been re-packaged in a semi-commercial box with the usual accessories.
The serial numbers appear to be more or less sequentialfrom the limited sample I have seen, and midway through this batch, the barrels switch from threaded to pinned. Otherwise, they diplay typical production traits for mid to late Chinese production:
-Spike bayo
-No lightening cuts on the bolt carrier
-Matte (not bright) finished bolts and bayonets
-Light coloured cheaply varnished stocks, not dark like earlier guns often were.
-Stamped construction gas tubes.
-Stamped trigger assemblies.
-All are Type 56 marked, not scrubbed and not Norinco marked.
-Most I have seen have the side-mount rear swivel, presumably for mounted or bicycle troops?