Choate Tool Mini 14 Cage Compensator .562 diameter Stainless Steel. Fits .562 diameter barrels. The compensator is attached to the gun barrel by a 1/8 inch spring steel roll pin. We suggest this unit be installed by a gunsmith. Specifications for Choate Tool Mini 14 Cage Compensator for .562 diameter: Manufacturer: Choate Tool Weight: 0.2 lb Country of Origin: USA Features of: Stainless steel Package Contents: Choate Tool Mini 14 Cage Compensator for .562 diameter Choate Tool CMT-07-07-13: Mini 14 Cage Compensator .562 diameter Stainless Steel