H&K Heckler & Koch
HK416 A5, MR556 A4 Barrel - 5.56 / .223 - 16.5"
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- SKU:
- HKP-21931
- MPN:
- 51001852
- Condition:
- New
Frequently bought together:
Description
H&K HK MR556 A4/A5 16.5" Barrel
This 16.5" factory H&K MR556 A4 barrel is cold hammer-forged from high-quality steel for exceptional durability, accuracy, and longevity. Manufactured to Heckler & Koch’s exacting standards, it features a 1:7 twist rate, optimized for a wide range of 5.56 NATO ammunition. Perfect for replacing a worn barrel or building a precision MR556/416-style upper.
Compatible With:
- HK MR556 A4
- HK 416 A5
Warranty Information
12/2/25-BF: Available directly from HKI since 1/7/25. Price adjusted to MSRP
Made from purchased Upper kits from Top Roof.
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Additional Information
Firearm Model: |
HK MR556 |
Origin: |
Germany |
Color: |
Black |
Caliber: |
5.56 / .223 |
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