This is my first gbbr and I have to say this gun does not disappoint! I was worried that my mag would leak but it doesn't which is always nice. Everything on the build is metal except for the moe stock which is polymer(a very solid polymer at that). Note that the packaging is not very good on these guns: the magazine came resting on the RIS and not in its own compartment, but the gun and mag are metal and very durable so it's not a big deal. Over all I would give this gun a 5 out of 5 because there is nothing that does not meet up to what I expected to get out of this LM4.
-weight is accurate to the real steel version
-Troy rail is comfortable to hold and rail segments are modular
-expensive magazines 45$!
-accurate weight (this can be a con if you are not very big/strong
-magazines do not hold much (40 rds)
Rating: [5 of 5 Stars!]