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Anybody who has built an AR knows the gas block is where a good build can go sideways. Line it up wrong and your rifle short-strokes, runs sluggish, or won't cycle at all. The Gas Block Genie from Two Two Three Innovations takes the guesswork out of that step. It's a simple polymer gauge that indexes off your .750" barrel and lets you mark exactly where the block needs to sit so its port lines up dead-on with the gas port in the barrel.
The process is about as painless as gunsmithing gets. You grab a fine-point marker or a scribe, use the Genie to reference the gas port, transfer a mark to the barrel, then slide your block on and match the line. Three to five steps and you're done. No feeler gauges, no eyeballing, no pulling the block off five times to chase alignment. It sets the block to the correct depth and angle the first time.
The style of block doesn't matter here. Whether you're working with a clamp-on, a rail-mount design, or a low-profile micro block, the Gas Block Genie handles all of them as long as you're on a standard .750" barrel. Plenty of folks use it on AR-10 builds too since the .750 journal is common across platforms.
Unlike the single-use plastic pins and shims floating around out there, the Genie is reusable. Run it on one rifle or a dozen, it holds up and earns its spot in your toolbox. It's made in the USA and covered under patent 10,845,140. Builders and home armorers consistently call it out for being genuinely easy to use, even if you don't consider yourself all that mechanically inclined. Toss it in your build kit or range bag and it'll be there the next time you're seating a block.
The standard Gas Block Genie is built for .750" barrels, which is the most common journal diameter on AR-15 builds. Since the .750 size shows up on plenty of AR-10 barrels as well, a lot of builders use it across both platforms. Just confirm your barrel measures .750" at the gas block seat before ordering.
All you need is a very fine-point marker or a scribe to transfer the reference mark. The Genie references the barrel's gas port, you make your mark, then slide the block on and line it up. A silver or paint marker tends to show up best on a dark barrel finish.
Yes. Unlike the single-use plastic pins and shims out there, the Gas Block Genie is fully reusable and holds up across multiple builds. That makes it a solid pick for home armorers or anyone assembling more than one rifle.
It handles pretty much every common style. Clamp-on, rail-block, and low-profile micro gas blocks all work with the Genie as long as you're on a .750" barrel. The tool sets the correct depth and angle regardless of the block design.
| UPC | 023821599003 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | GBG750 |
| Color | GAS BLOCK ALIGNMENT TOOL |
| Length | 4.2000 |
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