What is the difference between the GP marked version and the models with out the GP mark?
Thanks.

Hi,

I’m not an expert, but let me see if I can help.

ORIGINAL WASR-10
The WASR is a post-ban (produced during the ban) version of the AKM assault rifle in 7.62x39mm caliber. These are produced seperate from the military rifles in Romania and sent to the US. Factory-original rifles only support single-stack, low-capacity magazines (ten rounds hence the "10"), but are frequently modified to accept double-stack, regular-capacity magazines (thirty rounds or more). Pistol grip and thumbhole stocks are both commonly found.

GP WASR-10
After the sunset of the assault weapons ban in 2004, importers were able to legally equip WASR-10s with threaded barrels, compensators, bayonet lugs, and folding stocks, thus making the GP WASR-10 (with GP standing for general purpose). Versions in the old style without all of the "fun" features were still produced for states that had their own restrictions on such things.

GP WASR-10/63
The 10/63 designation was added by Century Arms International for marketing purposes only. Just as with all other WASR-10 rifles, these are newly manufactured with military rejected parts for the civilian market (with exceptions, see below).
A WASR-10/63 with an under-folding stock was introduced into the product line in 2007 and was still made using military rejected parts.
As of 2008 there are GP WASR-10/63 rifles in both solid and underfolding stocks that are being made from real de-milled military used rifles, including de-milled "G-code" Civil Guard guns (the "G" is ground off), but still using the dimple-less Century receivers. The military grade rifles are immediately identified by the triangle (empty or with an arrow) stamping in front of the serial number on the front trunion. (The underfolders should TECHNICALLY be GP WASR-10/65 because the 63 was the standard stock version and the 65 was the underfolder with the military rifles).

Hope that helps

Welcome to the site.

That said, do you have any evidence that wasr's are made with rejected parts?

This will tell you all you need to know and then some.

Never made from "rejected" parts. We made from refurbished military guns, and all the part had to be in spec to be used.

Now they are made from all new parts.

Pretty informative video.  Thanks for sharing!