I think the suggestion is reliabe, not perfect.
Ergonomics= eye of beholder
Weight = debatable, the Carbine weighs the same as an HK 416
price = higher than most, but have you looked at the prices of the HK product?
Piston needs cleaning = don't they all?
Many armies have gone to them, particularly for Special Forces use.
Who says the piston needs cleaning? I've never had a malfuction...


















































