M4 carbine
Colt's Manufacturing Company FN Herstal Remington Arms
Verified Firearm Specifications
Search our database of normalized firearm specifications. Compare precise weights, barrel lengths, and action types across thousands of unique models.
M4 carbine vs Zastava M21
Objective Side-by-Side
Zastava M21
Zastava Arms
M4 carbine Specs Snapshot
Weight
102.88 oz
Barrel Length
14.5 in
Overall Length
33 in
Standard Capacity
30 rds
Caliber
5.56×45mm NATO
Action Type
gas-operated
Avg Used Price
$1,000.00
Avg New Price
$1,300.00
Zastava M21 Specs Snapshot
Weight
145.6 oz
Barrel Length
18.1 in
Overall Length
39 in
Standard Capacity
30 rds
Caliber
5.56×45mm NATO
Action Type
gas-operated
Avg Used Price
$850.00
Avg New Price
$1,200.00
Differences At A Glance
Weight
-42.72 oz
Barrel Length
-3.6 in
Overall Length
-6 in
Standard Capacity
Even
Caliber
Action Type
Avg Used Price
+$150.00
Avg New Price
+$100.00
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