Harken 60mm Single Element Block Mastbase w/Swivel Teak Lumber the Sightmark 20Ga Boresight delivers

the Sightmark 20Ga Boresight delivers exceptional accuracy for your 20Ga shotgun

They are simultaneously contemporary and very robust

Watts: 12

077 inches

M7-12IB-C-GwGw-4

Harken 60mm Single Element Block Mastbase w/Swivel Teak Lumber the Sightmark 20Ga Boresight delivers60mm Single Element Block Mastbase with Swivel Element blocks introduce sideplates that combine forged aluminum and compound curves for strength. They are simultaneously contemporary and very robust. Elements design pairs the minimum amount of metal required to protect the sheave with a proven journal bearing. So size for size, Element is priced significantly lower, than our previously least expensive blocks. Sideplates are hardcoat anodized to resist