2A Armament .875 Gas Block 4140 Steel Black

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2A Armament .875 Internal Bore Gas Block Features

All the same great styling of our popular titanium gas blocks but in black oxide finished steel. The low profile design works well under hand guards, and anywhere else that space is at a premium.  A basic two set screw design ensures a secure fit, and an easy installation. Blue locking compound is recommended.

2A Armament .875 Internal Bore Gas Block Specifications

  • Made from US sourced 4140 steel
  • Internal bore:  .875
  • Length:  1.0 inch
  • Weight 1.35 ounces
  • Blasted and black phosphate coated
  • Low profile design
  • Includes two stainless set screws (spacing between set screws is .47)
  • Engraved logo on front
  • Product of Idaho, MADE IN THE USA
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Condition New in Box
Finish Per Color Black
Manufacturer 2A Armament
Manufacturer Part Number 2A-STGB-3
Model .875 Internal Bore Gas Block
Type Gas Tubes - Gas Blocks
UPC 854361006795

WARNING: This product can expose you to chemicals including arsenic, which is known to the State of California to cause cancer. For more information, go to WWW.P65WARNINGS.CA.GOV

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