M4A1-S

The Mk 18 CQBR (Close Quarters Battle Receiver), known ingame as the M4A1-S (the S standing for "suppressed") in the game, is an assault rifle chambered for 5.56mm. It can only be found in golden airdrops.

What makes the M4A1-S special is that its bullets are extremely faint, making them harder to dodge (and implying that the weapon is being "suppressed"). The bullets become more faint the farther they travel. With this however, comes at an extremely long reload for an assault rifle, even challenging the SCAR-H for some of the longest reloads for assault rifles.

Trivia

 * The M4A1-S's sprite is actually based off of the Mk 18 Close-Quarters Battle Receiver, a shortened version of the M4A1.
 * The weapon is probably known as the M4A1-S in-game due to Justin's days of CS:GO. Interestingly, the "M4A4" that appears in CS:GO is also based on the Mk 18 and not an actual M4.
 * When held, the M4A1-S looks like an Mk 12 SPR or a longer M416.
 * This is the second suppressed weapon added to the game, with the AWM-S being the first; however, unlike the AWM-S, the bullet trails are fainter, contributing greatly to the "suppressed" effect.
 * It is (currently) the only weapon with a special bullet fade.Screen Shot 2018-09-08 at 5.01.33 PM.pngScreen Shot 2018-09-08 at 5.01.16 PM.pngScreen Shot 2018-09-08 at 5.01.27 PM.png