The M4A1 was featured in the November 2021 CBT Playtest. It was released alongside the M4A1 Dreamcatcher. In the 13-10 update, the X4A1 Platina got a buff: +1 damage and +1.8 range.
Overview
An better upgraded version of the notorious M4A1 Carbine with some more Acc ,much more range and "mk.3 nerf" Stab (it still 58 though).Like the Mk.3 this type is unable to mod.
Mods
Barrel

Increases rate of fire but decreases accuracy
-1.7 Accuracy, -1.3 Auto Fire ACC, +0.27 Auto Fire

Increases accuracy
+2.0 Accuracy, Auto Fire ACC +1.5, Auto Fire -0.51
Sight

This accessory projects reflective and refracted lasers, improving visibility and magnification performance

A high-performance sight that aims by using the refraction of light. Enables high magnification, but requires more time to aim
Trigger

Rate of fire increases but accuracy decreases
-1.4 Accuracy, -1.1 Auto Fire ACC, +0.27 Auto Fire

Custom Trigger decreases fire recoil
+0.5 Recoil Control, -0.31 Auto Fire
Grip

Stabilizes the weapon but increases in weight
+0.3 Recoil Control, -0.7 Mobility

Better handling increases accuracy
+1.8 ACcuracy, Auto Fire ACC +1.4
Recommended Builds
- Burst Barrel
- Mechanism Improvement
- Ergonomic Grip