Nimrod Pistol & Equipment Case - Black Dump Pouches And the second is for

And the second is for the castle nut / locking ring at the back on the stock tube which also can get loose through vibrations

as listed below

Recommended for use in late autumn and early spring

May fit other brands of MP5 with slight modifications

Nimrod Pistol & Equipment Case - Black Dump Pouches And the second is forA super hard wearing Pistol & Equipment case from Nimrod. Carry handle makes transporting your pistols & equipment much easier. Made from high impact ABS plastic with a matt black coloured finish. External dimensions are 47cm x 36cm x 20cm. Internal dimensions are 41cm x 29. 5cm x 15cm. 2 sturdy hinged locking tabs keep the case securely closed. Inside the case there is egg crate style foam on the top lid and three layers of pick & pluck on the bottom