M249 Mk46 top rail picatinny tactical ras system

Top rail picatinny system for airsoft M249\Mk46 machine guns Printed by one piece, no need supports. For photos and using without adding heavy devices on top use simple din 7991 M5*10 bolts. For heavy using need to drill body and using M5*20 DIN 7991 bolts and m5 nuts.