Armalite Ar-180B Pivot Repair Section # RS-180B-01 Armalite Ar-180B Pivot Repair Section# RS-180B-01 Armalite Ar-180B Pivot Repair Section (RS-180B-01) $80 -Designed to replace broken front pivots. -Machined from 6061 aluminum and hard anodised Broken Pivot Point Step #1:Grind old pivot flush with front of receiverStep #2: Rough mating surfaces and apply epoxy. Step #3: Fit repair section, align top of part with top of magwell.clamp tightStep #4: Drill the six 1/16″ holes and epoxy in the six dowel pins