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SLR Rifleworks
Overview
The SLR Rifleworks Sentry Gas Block features a .625 diameter and is designed to be adjustable, allowing you to fine-tune the gas flow for optimal performance. Made from steel and finished with nitride for increased durability, this set screw mounting gas block provides a secure attachment to your barrel, ensuring reliability during operation. It is particularly suited for mid-length gas systems in 5.56 NATO builds, making it a popular choice for those looking to enhance their rifle's gas management.
Slr Rifleworks Sentry Gas Block .625 Adjustable Steel Set Screw
Builders on GunPartPicker first added the Slr Rifleworks Sentry Gas Block .625 Adjustable Steel Set Screw to a build in April 2026.
It was out of stock everywhere we track for all of September 2026, and today 2 of the 3 retailers we track have it in stock. Buying today, the lowest price is $141.64 at Optics Planet, above September's low of $130.32, so a better deal may come back.
Updated · from real builds on GunPartPicker · 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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Builds in the community that include the Slr Rifleworks Sentry Gas Block .625 Adjustable Steel Set Screw
| Build | Parts | Total |
|---|---|---|
![]() | 24 | $6498.43 |
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