The teak stock sets that were available here in Aus a number of years ago for a while were manufactured in Vietnam (or that region) for the guys who became AIA. They started out with a few cheek pieces, then went into foreends and full stock sets. Most required a fair degree of final fitting, the ones I saw although apparently kiln dried were still quite wet.
Fitted and finished properly they are very pretty, but are not military, and never used by the military.
If you use it I would check the foreend for movement every so often. Depending on final fit, dryness of the wood and even what part of the log the billets were cut from, the draws may be prone to compaction damage which might lead to serious damage.