Mk 18

The ^🌐Close Quarter Battle Receiver (CQBR) is a replacement upper receiver for the M4A1 Carbine, developed by the US Navy. The CQBR features a barrel 10.3 in (262 mm) in length. This shorter barrel makes the weapon significantly more compact, which makes it easier to use in and around vehicles and in tight confined spaces. Special units such as commandos boarding ships and bodyguards for senior officers have found such shortened weapons very useful and use the CQBR.

The complete CQBR-equipped carbine has been type-classified by the US Navy as the Mk 18 Mod 0, or the Mk 18 Mod 1 with a sightless gas block and full-length accessory rail kit.

Insurgency

Mk18
Slot	Primary
Category	Carbine
Faction(s)	Security Forces Specialist Breacher
Statistics
Caliber	5.56×45 mm
Fire Rate	740 RPM
Penetration	10 "600" 12000 "175"
Magazine Capacity	30+1
Attributes
Damage	110-46
Range	10000
Reload Time	3.83s loaded 4.53s unloaded
Spread	0.22
Suppression	50%
Miscellaneous
Weight Points?	130/640
Weight	2.88 kg
Length?	12

The Mk18 is a carbine featured in Insurgency.

It is exclusive to the Security Forces. It has a 30 round magazine, high recoil, and select full-automatic fire mode. Its compact size allows it to have the close-range versatility of a sub-machine gun, while retaining the firepower of a carbine.

However, due to its compactness and light weight, the Mk18 also has higher recoil than the full-sized M16A4 and cannot mount a M203 grenade launcher. Furthermore, unlike the sub-machine guns, the Mk18 has obstructive iron sights and an obstructive front sight with mounted optics.

Attachments

Optics	Holographic Sight Red Dot 2x Red Dot C79 Scope CO-OP only: Kobra Sight PO 4x24
Barrel	Heavy Barrel Suppressor
Siderail	Flashlight Laser Sight
Underbarrel	Foregrip
Ammunition	Tracer Ammo AP Ammo HP Ammo

Media

Mk18 Viewmodel

Mk18 ADS

Mk18 Worldmodel

Insurgency: Sandstorm

Mk 18 CQBR
Slot	Primary
Category	Carbine
Faction(s)	Security Forces Advisor
Supply Points	4
Statistics
Caliber	5.56x45mm NATO
Fire Rate	741 rpm
Velocity	780 m/s
Penetration	275 pp
Horizontal Recoil	11
Vertical Recoil	22
Magazine Capacity	30+1 rounds 35+1 (Ext.)
Reserve Ammunition	3 mags 5 (LC) 7 (HC)
Fire Modes	Fully automatic Semi-automatic
Miscellaneous
Weight	14%

The Mk 18 CQBR is a carbine featured in Insurgency: Sandstorm. It is only available to the Advisor class. In faction limited game modes, this weapon is also only available to Security.

The Mk 18 CQBR performs very closely to its brother, the M4A1, with both sharing many stats. The MK 18 carbine is great as a versatile implement that suits a variety of playstyles and tactics on the battlefield.

Fed from the streamlined 5.56x45mm cartridge, the MK 18 is able to kill opponents quite easily, only requiring 1-2 bullets to kill, even through light vests. While heavy vests may protect its wearer for one more bullet, they will still die extremely quickly, as the 741 RPM of the CQBR is on the faster side of weapons, leaving little gap between shots. The only thing separating the MK 18 to the renowned M4A1 is a minute decrease in velocity and penetration, meaning that statistically, the MK 18 is weaker, but in practice, that does not seem to be the case.

The versatility of the MK 18 CQBR is one of its main selling points. A jack-of-all-trades, there is little this carbine cannot handle. Because it shares most of its attributes with the M4A1, the MK 18 reaps the same benefits as it. The muzzle velocity is nearly identical, meaning that long range shots are not difficult, as the MK 18 has a hitscan range of 78m and is extremely accurate. Recoil is minimal, with the gun mainly kicking vertically.

Because the MK 18 is so average, attachments only bolster what the gun already excels at. 1x-1.5x Optics are cheap, and can be run on the weapon, but its iron sights are pretty decent. 2x Optics offer a bit more versatility with the ability to fine-tune aim at medium-range. Longer range scopes, like the 4x M150 or the 4x SU-230 are great for long-range visibility. Grips are a matter of preference, whether you want to decrease the already minimal recoil with a Recoil Grip or improve its close quarters performance with an Aiming or Quick Draw grip. A Loading Grip may also be handy when using the Extended or Drum magazines. Also, because the MK 18 loads the standardized STANAG magazine, it is able to scavenge and load other STANAG magazines from other guns like the M4A1, both M16s, L85A2, etc.

All of the benefits of the 5 credit M4A1 are condensed into the MK 18 for 4 credits, meaning that Advisors running this weapon will have a decent amount of credits to spend on their kit, or on the aforementioned attachments.

Altogether, the MK 18 CQBR is a carbine that fulfills the Advisor's job as a versatile team member very well. While the M4A1 of the Rifleman class is more powerful than the Mk 18 CQBR, it gets the job done in a sleek and efficient fashion.

Attachments

Optics	1.5x PK-AS 1x Holographic 1x Kobra 1x MARS 1x MRO 1x OKP-7 1x Red Dot 2x-1x Holographic 2x-1x Kobra 2x-1x MARS 2x-1x OKP-7 2x-1x Red Dot 4x M150 4x-1x C79 4x-1x SU230 4x-1x M150 BUS 4x-1x SU230 BUS
Underbarrel	Quick Draw Grip Loading Grip Aiming Grip Recoil Grip Recoil Grip Bipod
Barrel	Flash Hider Compensator Suppressor
Magazine	Extended Magazine Drum Magazine
Siderail	Laser Sight
Ammo	Tracer Rounds

Trivia

General

• In-game models for Mk 18 in Insurgency and Insurgency: Sandstorm video games are based on Mod 0 and Mod 1 variants respectively.

Insurgency

• The fire selector is permanently set to the safe position on the weapon model, and does not change when switching fire mode, the fire selector simply rotates back to the safe position when switching fire modes.
• The Mk18 is the only weapon in Insurgency to have a modified damage model when applying AP and HP ammo types.