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    Opened box return — product is brand new and unused but packaging may have signs of use.

    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

    • 3/4" (.75") 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)

    • 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!

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