To keep it moving smoothly, we recommend putting some oil on the moving parts occasionally. The finish of the left and right side sometimes causes a friction. Oil her up and there are no problems. 
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<br />Material 7075 :Aluminum
<br />Compatible With:AR-15 
<br />The Raptor ambi-charging handle from ohhunt is truly revolutionary in design &amp; function. From rapid palm &quot;blading&quot; or finger thumb charges of the , the motion is fluid &amp; fast from either strong or support side.