Seekins Precision Select Adjustable Gas Block .750, Black
Original price was: $119.00.$114.00Current price is: $114.00.
This Melonite-coated .750 gas block offers 40-position fine tuning plus a tool-less gas switch for fast, repeatable on-the-fly adjustments.
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Seekins Precision Select Adjustable Gas Block, .750, Black
This Melonite-coated tool steel gas block offers 40-position fine adjustment via Allen wrench for precise initial gas tuning, plus a tool-less gas switch for fast on-the-fly changes that never lose your baseline setting. It’s built for shooters who want exact control over their gas system whether running suppressed or unsuppressed.
Key Features
- 40-position fine adjustment via Allen wrench for near-infinite initial gas tuning
- Tool-less on-the-fly adjustment via gas switch without losing baseline setting
- Melonite coated tool steel construction
- Gas block journal diameter: .750
- Color: Black
Specifications
| UPC | 811452029651 |
|---|---|
| Manufacturer | Seekins Precision |
| Manufacturer Part # | 0011510065 |
| Type | Gas Block |
| Material | Melonite Coated Tool Steel |
| Diameter | .750″ |
| Color | Black |
| Subcategory | Long Gun Parts |
| Type | Gas Block |
|---|---|
| Model | Select Adjustable Gas Block |
| Diameter | .750 |
| Material | Melonite Coated Tool Steel |
| Color | Black |
| Brand |
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Frequently Asked Questions
What does “adjustable” mean on this gas block?
An adjustable gas block has a set screw or detent mechanism that controls how much gas is bled from the barrel to cycle the action. Unlike a fixed gas block with a single gas port, an adjustable block lets you tune gas flow for suppressed or unsuppressed use, different ammunition, and different barrel lengths to optimize cycling reliability and reduce felt recoil.
Why would I need an adjustable gas block for suppressed shooting?
Suppressors increase back-pressure in the gas system, causing the action to over-cycle with a fixed gas block. An adjustable gas block lets you reduce gas flow when running suppressed to restore normal cycling behavior, reduce bolt velocity, and decrease wear on components. When the suppressor is removed, you can return the adjustment to the unsuppressed setting.
What bore diameter do I need?
The .750-inch bore diameter fits the most common AR-15 barrel profiles at the gas block seating area, including government, M4, and heavy profiles. Lighter pencil-profile barrels typically measure .625 inch and require a .625 gas block. Measure your barrel’s outer diameter at the gas port or consult your barrel manufacturer before ordering.
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