ShotKam 20Cal/Rifle Barrel Mount

20Cal ShotKam Barrel Mount

Fits 20-caliber shotguns

Also fits most 30-caliber rifles with a barrel diameter of, for example, 17mm–19mm 

    (300 Win Mag, .308, .30-30, .338, .270, .30-06, 9.3 x 62 mm.)