SOPMOD M4A1

The M4A1 is a shortened 
variant of the M16A2
rifle, yet it packs the 
same firepower. Ideal
for close-quarters 
combat, the M4A1 is the
perfect combination of 
firepower and 
compactness.The M4A1 
functions almost exactly 
like the M16A2. 


Caliber: 
 5.56X45mm NATO 
 (.223 Rem)  

Weight: 
 3.03 kg 
 (with loaded mag) 

Overall Length: 
 84 cm (Stock Retracted) 

Bore Characteristics: 
 Hard Chrome Lined, 
 6 Lands & Groves, 
 1 Twist in 7 in.
 (178 mm),
 Right Hand  

Method of Operation: 
 Gas; 
 Direct system; 
 Locking bolt  

Muzzle Velocity: 
 2900 ft/sec (884 m/sec)  

Muzzle Energy: 
 1645 Joule  

Effective Range: 
 600 m  

Cyclic Rate of Fire: 
 700-950 rpm  

Fire Control Selection: 
 Safe - Semi - Full Auto  

Points of Mounting 
(Mil. Std. 1913 Picatinny 
Rail System): 
 Left Rail
 Right Rail
 Top Rail
 Rear Rail
 Upper Receiver