Sailormilan2 Posted September 27, 2020 Report Share Posted September 27, 2020 I've got a couple of Chinese made Polytech M14S rifles that I've used as training aids. I've learned a lot from tinkering with, and modifying, them. But their dark grey color always bothered me. Especially when next to the black color of American parts. So, COVID-19 boredom struck me hard the other day and I decided to "fix" them. I reparked all the Chinese made parts to black. Then put them into cleaned up and refinished USGI stocks. Here they are. The wood on the walnut stock is actually better than what shows up in the photo. Quote Link to comment Share on other sites More sharing options...
manureman Posted September 27, 2020 Report Share Posted September 27, 2020 Looks great! Who’s park solution are using to get that nice black color? Quote Link to comment Share on other sites More sharing options...
Sailormilan2 Posted September 28, 2020 Author Report Share Posted September 28, 2020 I'm using Allegheny Arsenal Manganese Park. It's much simpler to use than the Brownells. But it costs more. Quote Link to comment Share on other sites More sharing options...
AzRednek Posted September 28, 2020 Report Share Posted September 28, 2020 Did you shorten the barrel on the bottom one or is that how it came from the factory? Quote Link to comment Share on other sites More sharing options...
Sailormilan2 Posted September 28, 2020 Author Report Share Posted September 28, 2020 Numrich has some Chrome lined 18" and 22" barrels made for LRB Arms at a very good price. So, I installed one. Problem withe Chinese made Polytechs and Norincos(Same gun, different name) is that for some reason, the locking shoulders on the receivers have been moved slightly forward from USGI spec. Makes fitting and head spacing a bolt a little more difficult. Especially with the chrome lined barrels. Due to their chrome lining, the chamber is fully cut. So, after installation, one must find a bolt that fits, or lap the receiver and bolt lugs. Quote Link to comment Share on other sites More sharing options...
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