They can also be chambered for the 6.8 Winchester SPC.Glocks, because I love them.
And I would go with an ACR because they have such an effective anti-recoil system and you can change the calibre from 7.62 to 5.56.
Really? If both are chambered in 5.56 NATO (standard for those rifles in their military variants), what magic does the G36 use to achieve 1.5X range using the same cartridge...? I could agree that the piston vs gas tube design is superior, though.The G36, is also much more reliable, and has over 1.5x the effective range of an M4.