Black Rain Ordnance Adjustable .750 AR 15 Gas Block – Includes Set Screws

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Lightweight & Durable Gas Block For .750 Barrels

The Black Rain Ordnance Adjustable .750 Gas Block is a lightweight and durable upgrade designed to fit 0.750″ barrels and features the Black Rain Ordnance’s logo laser engraved on the side for a more rugged look. It has a low profile design that fits under most free float handguards.

The Black Rain Ordnance Gas Block is precision machined from ordnance-grade steel and finished with a tough manganese phosphate surface treatment.  It’s easy to install with no gunsmithing required and the set screws are included for a secure fit.


  • Durable ordnance grade steel construction
  • Military-style manganese phosphate finish
  • Low profile design fits under most free float handguards
  • Set screw design for a secure fit
  • Compatible with .750″ barrels
  • Laser engraved Black Rain Ordnance logo


  • Color: Matte Black
  • Gas Block Adjustable: Yes
  • Diameter: .750″
  • Height Over Bore: 1.36″
  • Length: 1.03″
  • Overall Height: Low Profile
  • Width: 0.86″

Have Questions About this Product?

The AT3 Tactical store has a 90 day no-hassle return policy for products in good condition. You can view the full details of our return policy here.

If you encounter an issue or defect with a product after 90 days of your purchase, you can refer to the manufacturer for a warranty claim. Their policies are below.

Black Rain Ordnance Warranty

  • All Black Rain Ordnance, Inc. products carry a 100% satisfaction guarantee against defects in original materials and workmanship.
  • If your Black Rain Ordnance, Inc. product shows evidence of such defects, Black Rain Ordnance, Inc. will make every accommodation to fix, repair, or replace your product in the most expeditious and inexpensive manner possible.
  • Black Rain Ordnance, Inc. does not warranty products or damage caused to our products by the correct or incorrect installation of other manufacturer’s products.
  • Be sure to retain your sales slip as proof of purchase date when making a claim.

Scope of Warranty

  • BLACK RAIN ORDNANCE, INC. products are warranted to be free from defective materials and workmanship for life of the original purchaser.
  • BLACK RAIN ORDNANCE, INC. obligation under this warranty shall be limited to (1) repairing or (2) replacing any product upon inspection at BLACK RAIN ORDNANCE, INC. and based on its discretion, is found to defective in material or in workmanship.
  • This warranty is limited and does not extend to: careless handling, abuse and misuse, unauthorized adjustments or modifications, use of improper ammunition, excessive or unreasonable use, ordinary wear & tear, rust or corrosion, and barrel obstruction.
  • Repairs are warranted for the duration of the original warranty and apply only to factory-built products.

Faulty Products

  • If the product has been used in accordance with the manufacturer’s instructions but is faulty, unfit for purpose or does not match the sample or description please call us at 1-888-836-2620.

Contact Details:

Telephone: 1-888-836-2620.

Disclaimer: Manufacturer’s warranty is subject to change without prior notice.

Customer Reviews

Based on 1 review
Jason tisdale
Black rain ordinance adjustable gas block

For my first time putting one of these on it went as easy as i could have wished had the rifle functioning within ten minutes for the price i dont think it can be beat

Thanks for sharing your feedback! We're glad you're satisfied with your purchase. Cheers!