Maintain an M4 or M4A1 Carbine Reviews
Summary – Lubricate the M4/M4A1 Carbine
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&pageText=To properly lubricate the M4 or M4A1 carbine, you must perform the following procedures:&
&bulletText1=Lubricate upper receiver group and carrying handle&
&bulletText2=Lubricate lower receiver group&
&bulletText3=Lubricate bolt carrier group&