Front loading aluminum sleeve that locks in place, securing it in position in the base of the barrel which eliminates any movement that could affect performance
Innovative locking system expands upon the basic barrel kit concept, by precisely aligning the bore of the seleve with the bore of the muzzle
Extensive honing process creates and mirror finish for consistent accuracy and maximum range
Sleeves are color coded and come in 5 bore sizes: .684, .688, .690, .692, and .696