I never fired the rifle and sent it to Top Notch for their G36 conversion. The conversion also included a G36 forend with bipod and the $650 Hensolt HK G36 Dual Optic. The conversion mag well is for AR15/M16 magazines which counts for 3 922r compliance parts. The Top Notch conversion also included their US made stock (LOP 15.5"), gas piston and bolt.So this rifle in in compliance with 922r. Since the conversion was done during the "AWB" the stock had to be pinned open and the barrel could not be threaded.