HECKLER AND KOCH MP5 .22LR FIXED STOCK 16.1" BARREL 25 ROUND BLACKHK SEMI AUTOMATIC BLOWBACK RIMFIRE RIFLE WITH THREADED BARREL 1/2x28 DIRECT THREAD, BARREL SHROUD, HK STYLE HAND GAURD, FIXED STOCK, PADDLE AND BUTTON MP5 MAGAZINE RELEASE, HK DRUM REAR SIGHT, HK FRONT SIGHT, HK CHARGING SYSTEM, HK SLAP-ABLE, SINGLE STAGE TRIGGER