Just have a few quick questions.
Are your rifle uppers Parkerized under the front sight base?
Is there an option to have the barrel chrome lined? Can I also get a 1:7 barrel twist?
Also curious,... what type of steel do you use in your barrels? Is it 4150?
Sorry for the barrage of questions.
I already own one of your STG58s, and I love it
Here is a link to our site for 1:7 chromelined M4 uppers