$220 shipped from airsoft Gi
The body is made of a durable polymer, though it seems that it isn't on a 1:1 ratio with a real g36c - but it feels solid enough. Handguards, stocks, and carry handles are interchangeable with AEG parts.
The internals are alll reinforced. The piston seems to be polymer. The other internals are either iron or steel - potmetal is absent. Everything plainly is durable. The system seems fairly simple and is easy to maintain/ upgrade.
Overall the gun feels easy to manuever and use. It's light for a combat rifle but it's sturdy.
The perfomance is quite satisfyi