H&K HK MR556 A4 Gas Block - Complete

H&K HK MR556 A4 Gas Block - Complete

The H&K MR556 A4 adjustable gas block complete system is the ultimate upgrade designed for the HK MR556 A4, providing superior performance for suppressed fire scenarios. With its effortless adjustment from suppressed to unsuppressed settings, this gas block ensures seamless operation in any environment. Constructed from premium materials and built to Heckler & Koch’s exacting standards, it delivers unparalleled durability and reliability that enthusiasts and professionals alike demand. Trust in this component to elevate your shooting experience to the next level.

Compatible With:

• HK MR556 A4
• Nefarious Arms A5 barrel

Features:

• Genuine H&K factory part
• Complete gas block assembly
• Durable construction for long service life
• Ideal for replacement, upgrade, or custom builds