<p>An adjustable front sight includes a carrier with a spiral sighting blade mounted for rotation within a base attached directly or indirectly to a barrel. A progression of sight lands is formed along a peripheral surface of the spiral sighting blade. Rotation of the carrier in opposite directions moves different sight lands into a sighting position at varying heights above the barrel for making elevation adjustments.</p>
申请公布号
WO2007001861(A2)
申请公布日期
2007.01.04
申请号
WO2006US23152
申请日期
2006.06.15
申请人
CROSMAN CORPORATION;SNYDER, DAVID, CHARLES;CALL, KENNETH, A.