Spike’s Tactical ST Micro Low Profile Gas Block
Original price was: $31.95.$27.49Current price is: $27.49.
Discover reliability with the ST Micro Low Profile Gas Block from Spike’s Tactical. Crafted from solid billet steel with a precision machined .750 inch gas seat, this micro gas block ensures seamless installation and durability. Featuring a matte black finish and nitride coating, it offers both style and protection against wear. Trust Spike’s Tactical for quality AR-15 components made in the USA.
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Spikes Tactical ST Micro Low Profile Gas Block .750 Inch
If you are looking for a quality gas block that will not let you down, look no further than the ST Micro Low Profile Gas Block. This meticulously crafted gas block is made from solid billet steel and features a precision machined .750 inch diameter gas seat. The micro low profile gas block is designed for easy installation with the included set screws, and the matte black finish ensures a sleek, professional look. Nitride coating protects against wear and tear, making this an incredibly durable gas block that will stand up to even the most intense use. When you need a gas block you can count on, choose Spike’s Tactical ST Micro Gas Block.
Features of the Spike’s Tactical Low Profile Gas Block:
- Micro Low Profile
- precision machined from Billet steel
- High quality standard AR 15 height double set screw gas block
- .750 inside Diameter
- set screw installation
- weight: 1.9 oz
- matte black finish
- Black Nitride Coated
- Includes Gas tube roll Pin
- Made in the USA
- SKU: SUGB120
WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information: www.P65Warnings.ca.gov
A low profile gas block sits below the inner diameter of a free-float handguard, allowing a full-length free-float rail or handguard to extend over the gas block without obstruction. The micro size of the ST Micro keeps the gas block’s overall footprint smaller than a standard low-profile block, making it a good fit for lightweight builds or handguards with a particularly small inner diameter at the gas block location. The gas block replaces the factory front sight base or existing gas block on the barrel and must be positioned precisely over the barrel’s gas port to ensure reliable cycling. Most low-profile gas blocks are secured by set screws engaging dimples drilled in the barrel — confirm your barrel has the appropriate set screw dimples or verify the attachment method before installation. Confirm your barrel’s outer diameter at the gas port matches the gas block’s bore diameter before ordering, as barrels are available in .625, .750, and .936 inch diameters depending on the barrel profile.
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Frequently Asked Questions
What handguards is this compatible with?
The ST Micro Low Profile Gas Block is designed for use under free-float handguards. Its low-profile design sits below the inner diameter of most free-float handguards, allowing the handguard to extend over the gas block without contact or obstruction.
What bore diameter do I need?
Confirm your barrel’s outer diameter at the gas port before ordering. Common AR-15 barrel diameters at the gas block seating area are .625 inch (pencil profile), .750 inch (government/M4/heavy), and .936 inch (bull barrel). The micro gas block is available in specific bore sizes to match the barrel.
How is it secured to the barrel?
The ST Micro gas block is secured by set screws that engage dimples drilled into the barrel surface. Confirm your barrel has the appropriate set screw dimples machined into it before installation.






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