This butt stock is made of plastic. It comes with metal buffer tube with numeric marking on the tube. The crane stock has retractable function which is fully compatible with aftermarket airsoft guns using M4 buffer tube system. Standard packing comes with QD Sling Mount allow use to carry sling while playing.
Selling Points:
- 6 positions retractable butt stock
- Metal buffer tube with numeric system included
- Quick Detach Sling Mount included
