Description
H&K HK MR556 A4 Gas Block – Complete
Factory HK MR762 A4 adjustable gas block ideal for switching between suppressed and unsuppressed firing.
Compatible With:
- HK MR762 A4
Features:
- Genuine H&K factory part
- Complete gas block assembly
- Durable construction for long service life
- Ideal for replacement, upgrade, or custom builds
