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 RPK
Objective Side-by-Side
RPK
Vyatskiye Polyany Machine-Building Plant
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
RPK Specs Snapshot
Weight
N/A
Barrel Length
23.2 in
Overall Length
40.9 in
Standard Capacity
N/A
Caliber
7.62×39mm M43
Action Type
gas-operated
Avg Used Price
$5,760.00
Avg New Price
$8,000.00
Differences At A Glance
Weight
Barrel Length
-5.5 in
Overall Length
-0.7 in
Standard Capacity
Caliber
Action Type
Avg Used Price
+$12,240.00
Avg New Price
+$17,000.00
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