AT3™ .750″ (3/4″) Low Profile Long AR 15 Gas Block – Steel

SKU: GB-75L

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The AT3 Long Low Profile Gas Block is designed to cover up barrel scars that are left after removing an AR-15 front sight base

FEATURES

  • 3/4″ (.750″) size – works with any .75″ AR-15 barrel
  • Perfect for use with long AR15 handguards that cover the gas block
  • Length is designed to cover up blemishes on barrel after removing front sight base
  • Secured with 3 set screws (screws, allen wrench and roll pin included)
  • Backed by the Lifetime AT3 Warranty

ITEM SPECIFICATIONS

  • Material: 4150 steel
  • Finish: Phosphate coating (matte black)
  • Length: see pictures
  • Inside Diameter: .75″
  • Weight: 2.7oz
  • Packaging: PE Bag
Frequently asked questions:
Q: How can I tell what size of gas block I need?
A: The gas block size is based on the outside diameter of your barrel. The most common size is .75″ (this is the military standard). If you aren’t sure – use calipers to measure the diameter of the barrel, in the area where the gas block sits. Or alternatively, you can try looking up the make and model of your rifle online for more details.

 

Q: How do I know if this gas block will fit under my handguard?
A: Our micro gas blocks are as small as you will find on the market. They are guaranteed to work with our AT3 handguards, and they should be compatible with all the other handguards out there!



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.

AT3 Lifetime Warranty Logo

All AT3 Tactical Brand Products carry a lifetime warranty against manufacturer’s defects.

This includes AT3 Red Dot SightsHandguardsIron Sights, and any other product that carries the “AT3 Tactical” or “AT3™” name. For other brands (ex. Magpul or Troy), please refer to the manufacturer’s warranty policy.

In the event that your AT3™ product becomes unusable, we will repair or replace the product at no charge to you.

If we cannot repair your product, we will replace it with a product in perfect working order of equal or better physical condition. The warranty is fully transferable, but we may require information about the original purchase to validate the authenticity of the product.

If your product is in need of warranty service, please contact AT3 Tactical to start the process

Our contact info is available here. To expedite processing, please provide your order information and description of the defect.

Please note: The AT3 Lifetime Warranty does not cover loss, theft, intentional damage or cosmetic damage that doesn’t affect the performance of the product.

Customer Reviews

Based on 38 reviews
89%
(34)
8%
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(1)
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A
Anonymous
Exactly what I wanted

Item is exactly what I needed. I used this on my m&p ar15 sport so I could replace my hand guard. It functions as it should. I would recommend it.

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

J
Jorge Amesquita
Gas block

Can’t say anything negative about it. It just works great and easy installation.

R
Roger Disotell
Gas block

Gas block was great, the gas tube pin was not had to use a pin I already had to secure gas tube.

Thank you for the feedback, Roger. We're investigating these pins a little closer and considering a change.

C
Chris Pyles
Great product, quick delivery

I needed this gas block to complete my latest build. I removed the front iron sight, but I wanted to cover up the pin holes in the barrel. Shipping was faster than it I thought it would arrive. The description was perfect. Went right on the barrel and worked exactly as I had expected. Thanks!

Thank you for the feedback, Chris!

J
Justin Iosco
Exactly As Described

Gas block was exactly as described. My only issue was the 2 roll pins wouldn't fit into this gas block that came along with it. Had to use the factory one that was still reusable as much as I didn't want to. Roll pins that came along with the gas block seem to be a little too big to fit in or the gasblock itself needs be dimpled on both sides to reduce likely hood of mushrooming roll pins upon install. This minor issue won't steer me away from purchasing more parts AT3 though!