KRYTAC have started testing the AEGs, especially the all-important gearbox as they start preparing to go for full production of their Trident Series of AEGs, with SDP version shown below... "In consideration for users in colder climates, we've frozen our gearbox to -8F degrees below freezing and dry fired it non-stop for over 60 seconds. Alloys can become brittle and are susceptible to cracking when the temperature drops. Upon close examination, the Trident M4 Mechbox shows no signs that structural integrity was compromised at all. Since that's done, let's have some ice cream!"