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Seekins Precision
Overview
The Seekins Precision Select Adjustable Gas Block is a low profile, clamp-on gas block with a .875" diameter, designed to provide precise gas regulation for your AR-15 build. With its adjustable feature, you can fine-tune the gas flow to match your specific setup, optimizing performance and reliability. This gas block is commonly found in builds that utilize a rifle-length gas system and are chambered in .223 Remington, making it ideal for precision shooting applications.
Prices checked
The Seekins Precision Select Adjustable Gas Block - .875" was out of stock everywhere we track every time we checked in October 2026, and today only Primary Arms has it in stock. Buying today, the lowest price is $114 at Primary Arms.
Prices checked · refreshed daily across 37 retailers
We ranked every gas block by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Gas Block Guide →Check it against the live catalog:
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