Factory Stribog 1913 Aluminum Picatinny Adapter UPC: 8588005944298

My Stribog SP9A3 9mm came equipped with the polymer 1913 picatinny adapter and for some reason every QD swivel I had would not fit and lock properly probably manufacturing defect? Anyway I don't trust polymer and ordered this factory stribog 1913 aluminum picatinny adapter and I'm glad I did it fit perfectly and is rock solid and no gaps like the polymer adapter! It looks 100% better and the finish matches the receiver and upper rail perfectly and my GG&G ENHANCED HD ANGULAR QD SWIVEL FIT PERFECTLY AND SECURELY AND I COULD USE MY CONDOR COBRA ONE POINT SLING TO CARRY MY STRIBOG AND I HAVE 100% CONFIDENCE IN THE ADAPTER TO ATTACH A SLING TO AND HIGHLY RECOMMEND A+