MK16 Vs MK4?

The is the most controversial weapon topic in the Armed Forces of the Panamoan Republic, though most firearm experts and professionals has repeatedly proven that the MK16 is far more superior in terms of performance and reliability. However the controversy is more focused on the MK4/A1 and the MK16A4 rifle.
== Accuracy ==
Some recruits in the Panamoan Navy and the Army who haven't used a MK16A2/MK16A4 claim that the MK4 had better accuracy; But this was ultimately false, because barrel length is proportional to the accuracy, lethality, precision and muzzle velocity of the firearm and it's respective caliber, AND not always based through a free floated barrel that gives a rifle pinpoint accuracy than a lengthened barrel.
== Reliability ==
In terms of reliability, the MK16 and it's later upgraded versions are widely praised for their exceptional reliability, which some people even state that they "last forever" like a KR pattern rifle, and even if it's shrouded in dirt, mud, snow, sand and water; It functions like they were merely cosmetic, but obstructive elements. It's long rifle gas system is perfectly capable of handling the pressures created by the heavy duty 508mm (20 inches) barrel. It also gives it the ability to deliver suppressive fire like a pseudo-machine gun, which battlefield reports prove that it overheats after shooting between 900-1200 rounds, depending on the weapon's condition.
The MK4 and MK4A1 have a 14.5" barrel which makes the carbine gas system being too short to handle the pressure of the lengthened 14.5" (368mm) barrel, unlike when utilizing the shorter 10.5" and 11.5" barrel used by the MK4 CQBR and the MK4 Commando. Meaning, it overheats quickly because the handguard and the gas system, alongside the gas block are placed relatively close to the chamber.
Which regrettably piles up the pressure and overheats after firing 200 rounds of live ammunition. The most common solution to that is firing it on semi auto, or utilize a mid length gas system, to reduce pressure and overheating.
== Handling ==
Handling-wise, the MK16A4 isn't that much different to the MK4 carbine as both have almost identical handling traits. The main advantage (and disadvantage) of the MK16A4 is it's longer, heavier, and the significantly longer barrel; which provides it with greatly increased range, accuracy, precision, lethality and muzzle velocity over its carbine counterpart but also makes it more cumbersome to wield in close quarters, which was slightly compensated through training in CQB and breaching.
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