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Questions & Answers
will this work for a carbine ar47 built with a 7.62x39 caliber? Expert Answer

Yes, they would be compatible.

by Tom B, Gear Expert, November 2, 2021
will this fit a 10.5 inch 7.62x39mm barrel? Expert Answer

Yes this item will be compatible.

by Brandon B, Gear Expert, August 26, 2021
Customer Reviews
Helpful Positive Review
Nice quality and easy to adjust by Formual300ss, March 20, 2018
I built a 6.5 Grendel upper with a 24” barrel recently and was having some issues with pressure and ejection. Install this adjustable gas block and was easily able to tune it to each type load I am using. Definitely needed with carbine or extra lon...
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3/3 found this helpful
Helpful Negative Review
Literally put it all together got the upper almost put together. The set screws do not go into the gas block very well at all it literally snapped my Allen key wrench off into the set screw and now it is completely useless because now there is a sets...
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1/7 found this helpful
Most Recent Reviews
Gas block didn’t adjust by None, February 14, 2021
It’s a nice gas block but as far as adjustable I didn’t see a change in any adjustment of the screw I turned the screw all the way in which should have shut it off or at least lesson pressure but saw no difference. So if ur looking for just a gas blo...
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0/1 found this helpful
Most Recent Reviews
Adjustable gas block by EJ, April 15, 2018
Did not work for my application on a very over gassed carbine with an m16 bcg and low profile rail. This product would be better used on a competition gun running a low mass bolt carrier group, light buffer and light spring. Also beware that like man...
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5/9 found this helpful
Most Recent Reviews
Pick a different one by Carpenterminator, Verified Owner, June 27, 2018
This product is poorly designed. The adjustment screw (the black one, by the way- there are no instructions at all with this) faces the receiver rather than the muzzle, so the hand guard probably has to come off to adjust it. The other thing- for m...
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3/5 found this helpful
Read All 5 Reviews
Color:
Black
Gas Block Journal Size-Diameter:
.750 in
Size:
One Size
Gun Make:
AR Platform
Gun Model:
AR-15
Condition:
New

Code: SR4-RGB-DSC766-DSC766

MPN: DSC766

UPC: 841348104605

List: $57.99Save $5.00
$52.99

Product Info for DoubleStar Adjustable .750in Low Profile Gas Block

Adjustable Low Profile Gas Block. .750"Machined from 1045 Steel. Stainless Adjustment Screw with brass locking screw to prevent damage to the threads. Self tapping set screws on the bottom for perfect seal and fit to barrel. Perfect for competition shooters.image

WARNING: California`s Proposition 65

Specifications for DoubleStar Adjustable .750in Low Profile Gas Block:

Manufacturer: DoubleStar
Color: Black
Fabric/Material: 12L14 Steel, 1045 Steel
Gas Block Journal Size-Diameter: .750 in
Size: One Size
Gun Make: AR Platform
Gun Model: AR-15
Condition: New

Features of Doublestar Adjustable Low Profile Gas Block, .750in

  • Adjustable Low Profile Gas Block
  • Size: .750"
  • Finish: Nitride

Package Contents:

  • DoubleStar Adjustable .750in Low Profile Gas Block

DoubleStar Adjustable .750in Low Profile Gas Block Orderable Models

List of Orderable Models

  • DoubleStar Adjustable Low Profile Gas Block, .750in, Black, DSC766 , MPN: DSC766 , UPC: 841348104605 , Code: SR4-RGB-DSC766-DSC766
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Last updated 2026-11-02 UTC.