Obsidian Arms .750″ Low Profile Gas Block


Out of stock


  • Low profile
  • Slip-on style
  • .750″ gas journal
  • 4140 alloy steel
  • QPQ finish for hardness and resistance to gas erosion

Out of stock

SKU: OA-GB-750A Category:


The Obsidian Arms Low Profile Gas Blocks are precision machined from 4140 alloy steel. They are then given a QPQ heat treating process that gives them an ultra hard surface that resists gas erosion and corrosion. This process imparts a lustrous black finish. The internal diameter is sized for .750″ gas journal and will fit under most free floating hand guards.

With the advent of free floating hand guards for AR style rifles the low profile gas block has become a must have. The Obsidian Arms Low Profile Gas Blocks are perfect for any build and the best, in cost, replacement for upgrading an existing rifle to accept a free floating hand guard.

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