Geissele Automatics Super Gas Block, .750, Black
$84.00
Geissele Automatics Super Gas Block, .750, Black. Precision investment cast 17-4 precipitation hardening stainless steel. Low profile, fits under most free-float handguards. Built to last thousands of rounds.
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The Geissele Super Gas Block is a low profile gas block built for shooters who want a high-strength, corrosion-resistant gas block that fits under most free-float handguards without any clearance issues. Geissele precision investment casts it from 17-4 precipitation hardening stainless steel, and because of this, the block delivers a level of strength and rust resistance well above what you get from standard phosphate steel gas blocks. As a result, the Geissele Super Gas Block holds up to thousands of rounds and harsh conditions without losing its fit or function.
In addition, the investment casting process gives the block a precise, consistent shape that drops onto a .750 gas block journal and seats cleanly without extra fitting. Furthermore, 17-4 PH stainless steel work-hardens under stress, which means the block actually gets tougher the more you run it. Moreover, the low profile design keeps the block out of the way of any free-float handguard so you can run the rail length you want without front-end clearance problems. The black finish blends with standard AR builds and gives the block a clean, finished look. When you want a Geissele Super Gas Block built to last the life of the barrel and beyond, the GEI05-807B is that gas block.
However, this gas block fits .750 gas block journals only. Therefore, confirm your barrel’s gas block seat measures .750 before you order the Geissele Super Gas Block.
Geissele Super Gas Block Key Features
- Low profile gas block for .750 barrel journals
- Precision investment cast from 17-4 precipitation hardening stainless steel
- Fits under most free-float handguards
- High corrosion resistance and long-term strength
- Color: Black
Specifications
| UPC | 810081130219 |
|---|---|
| Manufacturer | Geissele Automatics |
| Manufacturer Part # | 05-807B |
| Model | Super Gas Block |
| Type | Gas Block |
| Material | 17-4 Precipitation Hardening Stainless Steel |
| Diameter | .750″ |
| Color | Black |
| Subcategory | Long Gun Parts |
| Type | Gas Block |
|---|---|
| Model | Super Gas Block |
| Diameter | .750" |
| Material | 17-4 Precipitation Hardening Stainless Steel |
| Color | Black |
| Brand |
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Frequently Asked Questions
What barrel diameter does the .750 Super Gas Block fit?
The .750 designation refers to the inner diameter of the gas block — it fits barrels with a .750-inch outside diameter at the gas block seat. This is the most common diameter on mil-spec government-profile AR-15 barrels. Measure your barrel’s gas block journal before ordering to confirm compatibility, as .750 and .625 diameters are not interchangeable.
Is the Geissele Super Gas Block adjustable?
The Geissele Super Gas Block is a set-screw low profile gas block, not an adjustable model. It provides a fixed gas port opening and is designed for reliable function with a standard gas system. Geissele offers separate adjustable gas block models for applications requiring gas flow tuning, such as suppressed shooting or ammunition-specific optimization.
Does this gas block require a free-float handguard?
A low profile gas block is required when using a free-float handguard, since a standard front sight base is too tall to fit inside most free-float tubes. If you are replacing a standard front sight base to install a free-float rail, the Geissele Super Gas Block is a suitable low-profile replacement that clears any standard free-float handguard.
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