Did they modify the AK bolt carrier to work with the AR-15 bolts and barrels? Or did they modify the AR-15 barrel to fit into the AK front trunnion? It would be also interesting to know whether a direct impingement or a piston operated gas mechanism is incorporated into the design. It would be interesting to know how they redesigned the locking mechanism. It feeds from AR-15 magazines and is probably chambered in 5.56x45mm NATO caliber. In the two images below, you can see one of such rifles which looks to have an AK mechanism, AR-15 magazine adapter, and AR-15 barrel. The Diamond Arms Company has several rifles which design is a mix of different firearms.
By browsing through their social media pages, I selected some of the most interesting firearms they have made or modified. Among such companies is the Diamond Arms Company. However, some of these shops started using the Internet as a marketing tool and are now presented in social media websites which allows us to see some of their works. It is normally hard to find information concerning any new guns of the local masters. Darra Adam Khel is a town in Pakistan where the trade of many locals is the manufacturing of firearms and ammunition.