TM gbb mp7 with airtac m4 hpa adapter

Tokyo Marui gas blowback mp7a1 has only been used for 1 game day and a shoot every so often in the garden inside remains untouched mag adapter has new wiitech valve as the one it came with jammed every now and then (fine now ) only selling as it takes a backseat as i mainly ghillie now has a slight mark on where red dot has rubbed the rail and other light scuffs can post