Heckler & Koch HK21
Heckler & Koch Fábrica de Braço de Prata SEDENA
Verified Firearm Specifications
Search our database of normalized firearm specifications. Compare precise weights, barrel lengths, and action types across thousands of unique models.
Heckler & Koch HK21 vs MG 131 machine gun
Objective Side-by-Side
MG 131 machine gun
Rheinmetall-Borsig
Heckler & Koch HK21 Specs Snapshot
Weight
279.36 oz
Barrel Length
17.7 in
Overall Length
40.2 in
Standard Capacity
N/A
Caliber
HK21
Action Type
blowback
Avg Used Price
$18,000.00
Avg New Price
$25,000.00
MG 131 machine gun Specs Snapshot
Weight
N/A
Barrel Length
22 in
Overall Length
46.7 in
Standard Capacity
1 rds
Caliber
13×64mmB
Action Type
recoil-operated
Avg Used Price
$5,760.00
Avg New Price
$8,000.00
Differences At A Glance
Weight
Barrel Length
-4.3 in
Overall Length
-6.5 in
Standard Capacity
Caliber
Action Type
Avg Used Price
+$12,240.00
Avg New Price
+$17,000.00
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