Maintain an M4 or M4A1 Carbine Reviews
Perform a Function Check
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&pageText=To perform a function check on the M4 or M4A1 carbine, you must correctly perform the following procedures:& &label1=Remove magazine.& &label2=Check chamber for ammunition.& &label3=Check with selector lever on SAFE.& &label4=Check with selector lever on SEMI.& &label5=Check with selector lever on BURST.& &popText1=Remove magazine from the weapon by depressing the magazine release button and then grab the magazine and pull the magazine straight down to remove it from the magazine well.& &popText2=Pull the bolt to the rear and check the chamber to be sure that no ammunition is present.& &popText3=With the selector lever in the SEMI position, pull the charging handle to the rear and then release the charging handle to cock the weapon. Place the selector lever on SAFE. Pull the trigger. The hammer should not fall. The selector can not be placed on SAFE unless the carbine has been cocked.& &popText4=Place the selector lever on SEMI. Pull the trigger and hold it to the rear. The hammer should fall. Pull the charging handle to the rear and release it. Release the trigger and then pull the trigger again. The hammer should fall again.& &popText5=Place the selector lever on BURST. Pull the charging handle to the rear and then release it. Pull the trigger and hold it to the rear. The hammer should fall. Then pull the charging handle to the rear three more times and release. Release the trigger and pull again, the hammer should fall again.&
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