You can't get wasr's with a milled reciever. The only current supply of milled reciever rifles is from Arsenal Bulgaria/Las Vegas with the SAM series. Used Bulgarian rifles are still readily available but the prices are rising.
WASRs do have chromed barrels. The only rifles without chromed barrels are the Yugo builds because the barrels in the kits were trashed and some of the newer kit builds from Lancaster, Vector and other US builders. The new importation restrictions on de-milled kits forced the importers to cut the barrels. As the earlier kits that still had original uncut barrels dry up, builders are forced to use US made barrels that aren't chrome lined. Confused yet?
All Russian-Saigas and Vepr, Romanian-WASR and SAR etc., Chinese, Egyptian, Bulgarian, Hungarian and Polish have chrome lined barrels. The exceptions are more recent kit builds and any Yugo. Bottom line, ask before you buy if you're unsure or if you care.