The stock adapter mounts easily on the VZ58 and accepts any AR15 buffer tube. The adapter offers a left side sling point. Very light weight.
The M4 stock is positioned higher with this adapter (higher than the original vz.58 wood impregnated buttstock and the original Czech side-folding stock) and is best used with an optic. Iron sights can still be used, but some people have reported that the M4 stock is too high for a comfortable cheek weld.
Manufactured by North Eastern Arms (NEA). Material: 6061 Aluminum with a type III Hard Anodize.