Laylax M4 Wrench Paracord The upper and lower receivers

The upper and lower receivers are of full metal construction

Note that the included charger is not a smart charger and will not automatically turn off when the battery is charged

It works fantastically well with all brands of tracer BB

Inner barrel is a brass 300mm piece

Length: 504mm

Laylax M4 Wrench Paracord The upper and lower receiversLaylax two 2 Way Wrench Tool For M4 HK416 Next Generation Recoil Shock Series & M4 GBBR Series. This wrench is for M4 HK416, but also fits the stock tube ring on M4 Gas Machine Gun Series. It has two options one for the front delta ring castle nut which can get loose over time from vibrations at the front of the AEG. And the second is for the castle nut locking ring at the back on the stock tube which also can get loose through vibrations. Tightening