HAUS A5 adjustable gas block.
This gas block is compatible with HAUS A5 barrels and genuine HK MR556 A4 barrels.
This is a user configurable 2 position adjustable gas block that can be installed on 11″ – 20″ barrels.
Each gas block ships with:
1 coil pin, 5 vent screws, 1 tool, 1 tube of anti-seize
- “S” and “N” markings are NOT paint filled
Made In USA by Nefarious Arms exclusively for Haus Manufacturing LLC
Link to more information on HK Pro: https://www.hkpro.com/threads/a5-style-gas-block-differences-and-compatibility.588845/?post_id=4301066&nested_view=1&sortby=oldest#post-4301066















