Mk 18 CQBR
USA2002 - Present
Close quarters battle receiver for special operations
Primary Specifications
Caliber
5.56x45 mm
Standard NATO round
Weight (Empty)
2.7 kg
Muzzle Velocity
732 m/s
Reduced velocity from short barrel
Rate of Fire
800 rpm
Same as M4A1
Effective Range
200 m
Optimized for close quarters
Magazine
30-rd STANAG
Standard STANAG magazines
Quick Summary
What it is?
A short-barreled variant of the M4 designed specifically for room clearing and vehicle operations
Who uses it?
Navy SEALs, Delta Force, MARSOC, Special Operations
Role
Close quarters battle, Room clearing, Vehicle operations
What's different?
10.3" barrel versus 14.5" on M4; optimized for suppressors
Why it matters?
The preferred weapon for US special operators in direct action missions
Real-World Impact
1
Kill/Capture Raids
Primary weapon for high-value target raids
2
Hostage Rescue
Compact size ideal for confined space operations
3
Maritime Operations
Used by SEALs in ship boarding and coastal raids
4
Helicopter Assaults
Compact for fast roping and helicopter egress
Additional Features
Ambidextrous Controls
Partial
Operating System
Direct impingement
FAQs
1. Why the short barrel?
Maneuverability in buildings and vehicles outweighs range loss2. Is it effective past 200m?
3. What rail system?
4. Is it suppressed?
5. What optic is common?
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