WASR-10

WASR-10
The WASR-10 is a post-ban version of the AKM rifle in 7.62x39mm caliber. Factory-original rifles only support single-stack, low-capacity magazines (ten rounds), but are frequently modified by Century Arms to accept double-stack, regular-capacity magazines (thirty rounds or more). Pistol grip and thumbhole stocks are both commonly found.

Century Arms WASR-10
Figure 1: WASR-10, notice the single stack low capacity mag & welded muzzle nut...
Source
http://en.wikipedia.org/wiki/WASR_series_rifles