M4A1

The **M4A1** is an assault rifle featured in *Action Strike Online*, *Action Strike: Heroes* and *Combat Master Mobile FPS*.

## MK-18

### Unlocked

Rank 7

The M4A1 appears in *Action Strike Online* and *Action Strike: Heroes* as the MK-18. It can be unlocked once the player reaches rank 7.

## Combat Master Mobile FPS

M4
--

### Damage

40-33-20
16-9-8 (x6) (96-54-48) (with Shotgun 12-Shell Mags)
28-21-14 (x6) (168-126-84) (with Dragonbreath 20-Shell Mags)

### Caliber(s)

5.56 NATO
9mm Parabellum
Spear .277 Fury
12 Gauge

### Magazine Size

30 rounds (10, 20, 40, 50, 60, 100 with ammunition attachments)

### Starting Ammunition

30 + 90
20 + 60 (with Straight 20-Round Mags, Dragonbreath 20-Shell Mags and Spear .277 Fury 20-Round Mags)
10 + 30 (with Shotgun 12-Shell Mags)
50 + 150 (with Magpul 50-Round Drum Mags and MiliMart 50-Round Mags)
40 + 120 (with 40-Round Extended PMAG)
100 + 300 (with Double-Drum 100-Round Mags)

### Maximum Ammunition

Combat Master/Demon Slayer:
30 + 180
20 + 180 (with Straight 20-Round Mags, Dragonbreath 20-Shell Mags and Spear .277 Fury 20-Round Mags)
10 + 180 (with Shotgun 12-Shell Mags)
50 + 180 (with Magpul 50-Round Drum Mags and MiliMart 50-Round Mags)
40 + 180 (with 40-Round Extended PMAG)
100 + 180 (with Double-Drum 100-Round Mags)

### HUD icon

"*Newest modification of M4 carbine for wide scenarios such as VIP protection, urban warfare and other close quarters battle situations.*"
— Description

The M4A1 returns in *Combat Master Mobile FPS* as the **M4**. It was added on September 21st, 2023 during Season One and is unlocked at level 24.

### Overview

The M4 is the second assault rifle to be unlocked, at level 24.

The M4 is a high damage per bullet weapon. At any range short of 5 meters, the M4 will deal 40 damage, making up a 3-shot kill. Damage decreases linear until 49 meters, where it will deal 20 damage per shot, scoring a 5-shot kill. The M4 is guaranteed to score a 3-shot kill up until 33.5 meters and a one-shot kill in Hardcore until 30 meters. Head shots come with a 1.6x multiplier, higher for most assault rifles, usually allowing the M4 to kill in one fewer bullet depending on range.

Additionally, the M4 comes with good ADS and move speeds for its class, a fast reload, and predictable recoil. All of these traits make the weapon deadly out to medium distances and allow it to hold its own even over longer sightlines.

The gun's performance can be further adjusted with attachments. Barrels such as the **Rugr Classic**, **Rock Island Tris Precision** and **F1 Marksman** will improve damage range and recoil control for engaging targets at longer distances. The Rugr Classic however will greatly reduces the user's accuracy when firing from the hip. In contrast, the **MiliMart Flash Mini** barrel will grant faster sprint speed and increases fire rate for closer encounters.

The M4 also has a typical array of stocks, muzzles, and other attachments to tailor the gun for a variety of situations. It also possesses some unique conversion kits:

* The **9mm 30-Round Light Mags** increases fire rate, mobility and reload speed at the cost of range, allowing Match-Grade performance.
* The **.300 Blackout 30-Round Mags** increases fire rate and range at the cost of increases recoil, dealing higher damage over greater distance.
* The **Spear .277 Fury 20-Round Mags** greatly increase fire range by **101%** and increases damage over distance at the cost of magazine capacity, sprint speed and vertical recoil.
* The **Shotgun 12-Shell Mags** allows the M4 to fires Shotgun Shells that pull out 6 pellets per shot, each deals 9 damage at 25m, switching the gun to an automatic Shotgun.
* The **Dragon Breath 20-Shell Mags** is mostly the same as the Shotgun 12-Shell Mags, except with much higher damage,

#### Threat Measure

The M4's threat measure is highly dependent on the user's choice of attachments. its a good idea to observe what attachments they are using. For example, if you notice the M4 User is using the **Dragon Breath 20-shell Mags**, then they pose an extremely high threat seeing as that ammunition attachment in particular is very powerful.

#### Counterplay

Knowing how to counter an M4 user requires knowledge of they're playstyle and weapon build, because the M4 is an extremely versatile weapon. For example, If the M4 user is running a build aimed towards close quarters, outranging them with a sniper rifle or other long-range weapon can be a good way to counter them.

Overall, with an arsenal of gunsmith and customization options at the players' fingertips, the M4 is more than just a firearm; it's a blank canvas for the players' tactical genius.

### Attachments

#### Muzzle

* Flash Guard (Default)
* Lightweight Suppressor
* Hog Muzzle Device
* Ultralite Suppressor
* TAA Titanium POC Muzzle Brake
* Sig Sauer SRD762Ti Suppressor
* SLR Synergy Linear Compensator
* Monolthic Suppressor
* Zenit Muzzle Brake
* Oil Filter Can
* BAMF Roze
* KVP XL Linear Compensator
* Tactical Suppressor
* ZDTK-2 Muzzle Brake
* Wrap Cover Suppressor
* Shredder Xtreme
* Si Oppressor
* Obsidian 9 Suppressor
* Co Kinetics PRO
* JCOMP Gen2 Shield
* Stappled Suppressor
* Griffin QD
* Ghost Compensator
* Cookie Cutter Compensator

#### Barrel

* MK18 (Default)
* HK Skel
* Houge Heavy Extended
* Falcon Atlas
* Rock Island Tris
* Rugr Classic
* F1 Speedster
* RP Pyramid Gen 3
* MiliMart Flash Mini
* Rock Island Tris Precision
* F1 Marksman

#### Optic

* KAC Micro Sights
* Leupoid DeltaPoint
* EOTECH HWS
* Kobra Gen 3
* Spec Arms Carry
* Aimpoint Micro
* Optech MRS Open
* Trijcon TA02 LED
* Scalar Peak-01
* Aimpoint Micro AR Mount
* Aimpoint ACRO
* BRAVO 4
* Trijcon MRO
* OSA Monocle
* Kahles K624i Precision Rifle Scope
* Zenit PK-06
* Eican Spectre
* Trijcon SRO
* Vortex Razor
* EOTech Vudu
* Holosun HS510C
* Leupoid Mark 4 HAMR
* Vortex Venom

#### Stock

* Magpul UBR (Default)
* Maxim Defense CQB7
* ACE Ultra Light
* SG Heavy
* Edge Hexon Buffer Tube
* SB Tactical SBA3
* Strike Industries Viper
* MiliMart Integral
* Daniel Defense Collapsible Buttstock
* Fortis Ultra Light
* Strike Advanced Extension
* Magpul Precision Stock
* Gunslinger Quick+

#### Grip

* SIG Factory Original (Default)
* HK MR556 Pistol Grip
* Daniel Defense Pistol Grip
* Skeleton Ultralite Straight
* MDT ESS Precision Grip
* Tyrant Designs C1
* Trinity Force DMR Grip
* Fortis Tourque Pistol Grip
* Rapid+
* Skeleton Ultralite Ergonomic
* Tyrant Designs MOD Pistol Grip
* DynoTac Hexagon Skel
* Sierra SPR Precision
* FF Cord
* Falcon Marksman

#### Ammunition

* 30-Round Mags (Default)
* Straight 20-Round Mags
* Magpul 50-Round Drum Mags
* 9mm 30-Round Light Mags
* Shotgun 12-Shell Mags
* .300 Blackout 30-Round Mags
* 40-Round Extended PMAG
* SureFire 60-Round Mags
* Double Drum 100-Round Mags
* Spear .277 Fury 20-Round Mags
* MiliMart 50-Round Mags
* DragonBreath 20-Shell Mags

#### Underbarrel

* No Modification (Default)
* Mil Foregrip
* Magpul Angled Fore Grip
* Merc Foregrip
* Tyrant Designs MOD Foregrip
* TangoDown Stubby Vertical Grip
* Tyrant Designs HALO MiniVert Grip
* Harris Steel Bipod
* Fortis SHIFT Angular Grip
* Daniel Defense Vertical Grip
* CAA MGGRIP
* Larue Tactical Forward Universal Grip
* Fortis SHIFT Vertical Grip
* Railscales Anchor Vertical Grip
* Railscales Karve Handstop
* Railscales RSB Vertical Grip
* AccuTac Composite Bipod
* MiliMart CQR Grip

#### Receiver

* M4 Mil (Default)
* VR80 Heavy
* Shark Performance Skel

### Arsenal

 Fight Club
 Fire Mace
 Goldstrike
 Hellfire

### Gallery

The M4 in First PersonAiming down the sight.Reloading the M4.Inspecting.Alternate reload animation for the M4 Mk.28.