Samson Gas Block Stainless AC-556 Style for Mini 14 2008 or Later

Samson Manufacturing Corp. AC-556 Style Gas Block Front Rifle Sight Fits Mini 14 Manufactured in 2008 or Later Stainless Steel Finish Silver. 2008 or later in Black or Stainless are compatible with Mini-14 rifles with a factory flanged .625" diameter barrel manufactured in 2008 or later with a serial number prefix of 508 or higher. Additionally Mini Thirty rifles with the older factory straight pencil .625" diameter barrel and the new factory flanged .625" diameter barrel will be compatible. 2007 or earlier in Black or Stainless are compatible with Mini-14 rifles with a factory straight pencil .562" diameter barrel manufactured in 2007 or earlier with a serial number prefix of 181 through 199 but not including 580 or higher. Specifications for Samson AC-556 Style Gas Block Front Rifle Sight: Manufacturer: Samson Gun Make: Ruger Fabric/Material: Stainless Steel Gun Type: Rifle Package Contents: XS Sight Systems R3D Tritium Pistol Night Sights