Maintain an M4 or M4A1 Carbine Reviews
Assemble the M4 or M4A1 Carbine (Steps 1-6)
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&pageText=The sixth performance measure in maintaining the M4 or M4A1 carbine involves the 12-step process of reassembling the weapon after it has been cleaned, inspected, and lubricated. This performance measure will be broken into two groups of six steps each. The M4 carbine is reassembled in reverse order of the disassembly process. To assemble the carbine, you must perform the following procedures:&
&label1=Combine buttstock assembly and lower receiver&
&label2=Collapse buttstock assembly to closed position&
&label3=Combine buffer and action spring&
&label4=Insert buffer into buttstock assembly&
&label5=Replace extractor pin and spring&
&label6=Insert bolt assembly into bolt carrier&
&popText1=Insert the buttstock assembly onto the lower receiver extension.&
&popText2=Collapse the buttstock assembly to the full closed position.&
&popText3=Slide the action spring onto the buffer.&
&popText4=Insert the action spring and buffer into the buttstock assembly.&
&popText5=Replace the extractor and spring on the bolt and insert the extractor pin.&
&popText6=Place the bolt assembly into the bolt carrier and insert the bolt cam pin.&
