Maintain an M240B Machine Gun Reviews
Replace the Barrel Assembly
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&pageText=To properly replace the barrel assembly, you must:& &label1=Insert gas regulator plug& &label2=Lock gas collar& &label3=Install heat shield& &label4=Attach barrel to receiver& &poptext1=Insert gas regulator plug into gas hole bushing with number 1 gas setting facing barrel.& &poptext2=Place gas collar over front end of gas regulator plug. Rotate collar until it slips onto gas regulator plug and locks in place.& &poptext3=Inserting front tabs of heat shield into the holes on sides of gas hole bushing. Push down on heat shield so it snaps onto the barrel.& &poptext4=Position gas regulator downward and carrying handle in its vertical position. Insert barrel into receiver socket. Push carrying handle to the right and lock it into place.&