Repairsoft M870 Adapter M4


3D printed M4 adapter for M870 designed  by Repairsoft.

Made for PTS magazines

No wobble from adapter to  replica

No wobble from mag to adapter

Perfect fit

Inside the M4 adapter are raised ribs to make the magazine sit tightly.

when filing these down you can make the magazine drop easily

preferred in speedqb

Important: you do need the remove the loading port (metal bracket which can be cut out with pliers)

PTS magazine not included.