Maintain an M4 or M4A1 Carbine Reviews
Disassemble the M4 or M4A1 Carbine (Steps 1-6)
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&pageText=The second performance measure in maintaining the M4 or M4A1 carbine involves the 12-step process of disassembling the weapon into its component parts. This performance measure will be broken into two groups of six steps each. The disassembly process is necessary for both cleaning and lubricating the weapon, and for determining the serviceability of the weapon. To disassemble the carbine, you must perform the following procedures:& &label1=Remove sling& &label2=Remove handguards& &label3=Separate upper and lower receiver& &label4=Remove bolt carrier, bolt, and charging handle& &label5=Remove carrying handle assembly& &label6=Remove firing pin retaining pin and firing pin& &popText1=Unsnap the sling from the front sling swivel, then unsnap the sling from the rear swivel, and remove the sling from the carbine.& &popText2=The handguards are removed by placing the weapon on the buttstock and pressing down on the slip ring with your hand.& &popText3=Separate the upper and lower receiver groups by pushing the takedown pin as far as it will go and pivot the upper receiver from the lower receiver.& &popText4=Pull back on the charging handle to remove the bolt carrier and bolt from the upper receiver, and then remove the charging handle.& &popText5=Remove the carrying handle assembly by loosening the round nuts on the left side. Loosen the clamping bar and lift off the carrying handle.& &popText6=With the bolt assembly in the locked position, remove the firing pin by allowing it to drop out of the rear of the bolt carrier into your hand.&
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