The M16 service rifle is a light, gas powered, air-cooled, magazine fade, shoulder-fide weapon. It uses 5.56 mm NATO round (for civilian equivalent .223). In Marine Corps, this weapon is our life. It should be cleaned regularly for the rifle to work properly and not to stomach. To clean the weapon, you must first separate it or strip it. Here’s how:
Lock the bolt from the back. You have to press the lever on the charging handle and pull the charging handle backwards. While placing the charging handle in the rear position, you have to push the lower part of the bolt catch on the left side of the magazine to the right.
Push the rear dis-assemblie pin at the top of the pistol grip. This will allow the rifle to pivot on the next assembly pin for the “shot-gun” effect. This will only work when you want to take out Bolt.
Repeat step 2 on the front assembly assembly at the top of the magazine. This will separate the upper and lower receivers.
Separate the upper and lower receivers by pulling them apart.
While dragging the hand grip away from the barrel, pull the upper and lower hand grip by dragging on the o-ring located in front of the magazine well.
Remove the bolt carrier group by dragging the charging handle backwards. The bolt carrier group will come with it and should fall right out. Keep it separate for more assemblies.
Remove charging charge by détentes lining with recesses in the upper receiver housing and pull downwards.
Remove the buffer assembly from the lower receiver. Use the charging handle to suppress the lips in the stock.
Bolt carrier group pick. Remove the firing pin from the bolt carrier by pushing the bolt pin from right to the left and pushing the firing pin. The firing pin will fall right out. The retting pin is too small. Be sure to keep it in a safe place. A good place to put it in the charging handle is in the groove.
Just pull out the bolt in front of the bolt carrier and remove it.
Bend the cam pin in front of the bolt carrier to remove it so that it cleans the gas tube and then pull it out.
To remove a rifle it is not necessary to remove the extractor pin and the extractor. Losing the spring found under the tongs can easily make a bolt easily unattainable. However, cleanliness of these parts is recommended in the garrison.
Dismissing the latch, open the cans in the butt-stock. If the latch is difficult to release, then use the charging handle to suppress it.
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