Kaw Valley Precision Barrel Extender Threads per Inch 1.25in Black Small. With the vast array of parts available on the market achieving the perfect barrel/comp/hand guard fit can be tough. Barrel extensions come in handy when you need just a little more barrel/comp length to work well with ytheir hand guard of choice. Available in three lengths the KVP barrel extensions add .75in 1in or 1.25 in of operating length to ytheir barrel. The length of the OD threads is an industry standard .625. Each extension is precision machined from US steel in a multi-axis Swiss lathe. Each barrel extension includes wrench flats for easy installation/removal. Finally the parts are finished in a Black Nitride QPQ finish which has excellent wear properties and will match barrels that utilize the same finishing treatment. The KVP barrel extensions are designed for 9mm diameter projectiles and smaller. (ex. 9mm 22LR .223/5.56 etc.) Specifications for Kaw Valley Precision 1.25in Barrel Extender: Manufacturer: Kaw Valley Precision Condition: New Color: Black Fabric/Material: Precision Machined Steel Finish: QPQ Features of Kaw Valley Precision 1.25in Barrel Extender Swiss Lathe Produced Package Contents: Kaw Valley Precision 1.25in Barrel Extender Kaw Valley Precision KVP-BE-125-5824: Barrel Extender 5/8x24 Threads per Inch 1.25in Black Small