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Midwest Industries
The Midwest Industries AR-15 Micro Gas Block in .625" diameter is a compact, low-profile gas block built for shooters who want a tight, clean setup under their handguard. At just 1.125" long and weighing only 1.2 oz, this .625" micro gas block fits under most commercial AR handguards without interference—a real advantage if you're running a free-float tube or want minimal obstruction above the barrel. Made from durable 4140 steel, it's designed to handle the rigors of the range, hunting trips, and serious training without compromise.
Installation is straightforward: the gas block secures to your barrel with two set screws, giving you a rock-solid connection you can trust. The compact footprint and low profile mean you won't have to search for a custom or oversized handguard to accommodate it—most off-the-shelf options will work just fine. If your AR build calls for a .625" bore and you want a gas block that stays out of sight and out of mind, this is a solid, no-nonsense choice.
Whether you're optimizing a short-range tactical carbine, a lightweight hunting rifle, or a precision build, the Micro Gas Block delivers the function and durability Midwest Industries is known for. It's the kind of component that lets you focus on your shooting instead of worrying about fitment and reliability.
| Inside Diameter | .625" |
| Length | 1.125" |
| Height | 1.290" |
| Width | .755" |
| Weight | 1.2 oz |
| Screw Hole Spacing | .450" |
| Material | 4140 Steel |
| Finish | Black |
| Attachment Method | Two set screws |
The low-profile design and compact 1.125" length are engineered to fit under most commercially available AR handguards. However, fitment depends on your specific handguard design and how it's mounted; we recommend checking your handguard specs or consulting with your gunsmith if you're uncertain.
This micro gas block has a .625" inside diameter, so it requires a standard .625" diameter gas tube.
The block attaches with two set screws that tighten against your barrel. Proper tightening and alignment are critical for reliable operation; follow Midwest Industries' installation guidelines or have a qualified gunsmith install it if you're new to AR builds.
The .625" bore diameter is standard for most AR platforms, but gas system compatibility (carbine, mid, rifle, or other lengths) depends on your specific barrel and build. The gas block itself is a standard bore component; confirm your barrel and tube specs before purchase.
Midwest Industries
The Midwest Industries AR-15 Micro Gas Block in .625" diameter is a compact, low-profile gas block built for shooters who want a tight, clean setup under their handguard. At just 1.125" long and weighing only 1.2 oz, this .625" micro gas block fits under most commercial AR handguards without interference—a real advantage if you're running a free-float tube or want minimal obstruction above the barrel. Made from durable 4140 steel, it's designed to handle the rigors of the range, hunting trips, and serious training without compromise.
Installation is straightforward: the gas block secures to your barrel with two set screws, giving you a rock-solid connection you can trust. The compact footprint and low profile mean you won't have to search for a custom or oversized handguard to accommodate it—most off-the-shelf options will work just fine. If your AR build calls for a .625" bore and you want a gas block that stays out of sight and out of mind, this is a solid, no-nonsense choice.
Whether you're optimizing a short-range tactical carbine, a lightweight hunting rifle, or a precision build, the Micro Gas Block delivers the function and durability Midwest Industries is known for. It's the kind of component that lets you focus on your shooting instead of worrying about fitment and reliability.
| Inside Diameter | .625" |
| Length | 1.125" |
| Height | 1.290" |
| Width | .755" |
| Weight | 1.2 oz |
| Screw Hole Spacing | .450" |
| Material | 4140 Steel |
| Finish | Black |
| Attachment Method | Two set screws |
The low-profile design and compact 1.125" length are engineered to fit under most commercially available AR handguards. However, fitment depends on your specific handguard design and how it's mounted; we recommend checking your handguard specs or consulting with your gunsmith if you're uncertain.
This micro gas block has a .625" inside diameter, so it requires a standard .625" diameter gas tube.
The block attaches with two set screws that tighten against your barrel. Proper tightening and alignment are critical for reliable operation; follow Midwest Industries' installation guidelines or have a qualified gunsmith install it if you're new to AR builds.
The .625" bore diameter is standard for most AR platforms, but gas system compatibility (carbine, mid, rifle, or other lengths) depends on your specific barrel and build. The gas block itself is a standard bore component; confirm your barrel and tube specs before purchase.
