Precision Reflex AR15/M16 Gas Block w/ Top Picatinny Rail Black
$73.99 at MidwayUSA · 2 stores
In stock
Precision Reflex PRI Low Profile .625 Diameter Gas Block Black
Precision Reflex, Inc. · Gas System
No ratings yetBest price
$69.99at OpticsPlanet
Out of stock Sale checked Oct 26, 2026
In stock now instead
- Precision Reflex AR15/M16 Gas Block w/ Top Picatinny Rail Black $73.99at MidwayUSA
- Precision Reflex Gas Block w/ Picatinny Rail .625 Black $73.99at MidwayUSA
- Sons of Liberty Gun Works Liberty Gas Block .750 Stainless Stee… $70.00at MidwayUSA
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| OpticsPlanet | $69.99Salechecked Oct 26, 2026 | Out of stock | Buy at OpticsPlanet |
Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.
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Price history
Dashed line = out of stock. Tracking since Oct 25, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| OpticsPlanet | $69.99 | $69.99 | $69.99 |
Since Oct 25, 2026.
About this part
The Precision Reflex PRI Low Profile .625 Diameter Gas Block Black is a gas system part from Precision Reflex, Inc.. One store lists it, OpticsPlanet at $69.99.
Fits and works with
- Gas block
- 0.625" diameter · Gas blocks
Specifications
- Manufacturer
- Precision Reflex, Inc.
- Color
- Black
- Size
- .625
- Material
- Steel
From the manufacturer
Precision Reflex PRI Low Profile .625 Diameter Gas Block Black. 625 diameter barrel is constructed of 1141 high strength steel with a magnesium Phosphate finish. This gas block is held in place by 2 10-32 set screws. Gas block is 1.3in tall 1in in length and is .625in from bore center to gas tube. The block is .775 in width and comes with a roll pin. From the back of the gas block to the gas port hole is .250. This leaves .035 between the back of the gas block and most steps in the barrel. This is for installing of the A2 style hand guards. So there should be a .035 gap between the barrel step and the gas block. This can be filled with spacer or leave empty. Specifications for Precision Reflex PRI Low Profile .625 Diameter Gas Block: Manufacturer: Precision Reflex Color: Black Fabric/Material: 1141 Steel Gas Block Journal Size-Diameter: .625 in Gas Port Size: 0.25 in Gun Make: AR Platform Gas Block Journal Size-Length: 1 in Finish: Magnesium Phosphate Package Contents: Precision Reflex PRI Low Profile .625 Diameter Gas Block Precision Reflex 05-625-01: PRI Low Profile .625 Diameter Gas Block Black
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