GSG 522PK (MP5K 22LR) SBR & SilencerCo Sparrow Applesauce Anyone?

GSG 522PK sbr with SilencerCo Sparrow. I modified an ICS (airsoft) MP5 Navy Lower Receiver Body to fit, used a dap of JB Weld for the selector stops and colored them with permanent black marker. I also filed, then color filled with white spray paint the selector to match the real version. The lower takes a Motor Heat Sink/Floor Plate that is sold separately, which makes for good NFA paperwork storage. The Tactical Hard Shell Drop Leg Quick Draw Triple Mag Carrier is also airsoft and the GSG mags fit perfectly and actually click in when fully seated. All airsoft parts were from Evike. GSG Rear Sight HK, oval washer and locking washer came from HK Parts. I replaced the stock metal bolt buffer with a 5mm polyurethane 82 shore A to quiet it down more when the bolt is going to the rear. I installed the GSG-5 Replacement Screw Set from Hot Gun Parts.Purchased a Custom Suppressor Adapter for GSG-5PK too. I just put the best part of the 110 round drum running without malfunctions in the video. The supersonic Winchester M22 ammo is subsonic out of this barrel length. The Federal American Eagle Suppressor 45 grain subsonic ammo cycles because it’s heavier than others. It sounds just a bit quieter than the Winchester. I did the first couple clips with it, then went to the Winchester ammo.