Maintain an M4 or M4A1 Carbine Reviews
Clean Upper Receiver Group
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&pageText=To clean the upper receiver group of the M4/M4A1 carbine, these steps must be completed:& &Label1=Swab out the bore& &Label2=Assemble cleaning rod sections& &Label3=Attach bore brush& &Label4=Place cleaning rod through weapon bore& &Label5=Attach handle section to cleaning rod& &Label6=Pull brush through weapon bore& &Label7=Repeat process& &Label8=Use patch to remove firing residue& &popText1=Swab out the bore with a patch moistened with CLP.& &popText2=Attach three-rod sections together but leave each one about two turns short of being tight.& &popText3=Attach the bore brush but leave it two turns short of being tight, also.& &popText4=Point the muzzle down and then hold the upper receiver in one hand while inserting the end of the rod without the brush into the chamber. Let the rod fall straight through the bore. About 2-3 inches will be sticking out of the muzzle at this point.& &popText5=Attach the handle section of the cleaning rod to the end of the rod sticking out of the chamber.& &popText6=Pull the brush through the bore and out the chamber.& &popText7=After one pull, take off the handle section and repeat the process. After three or four pulls, you will see that the three-rod sections and the bore brush are screwing together. Loosen them up and repeat the process.& &popText8=Send a patch through the bore to help clean out the firing residue and carbon that the brush has loosened up.&
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