Maintain an M4 or M4A1 Carbine Exercises
Maintain M4/M4A1 Magazine Exercise 2
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&questionText=Which component part of the magazine does not receive even a light coat of lubricant?&
&lure1=base plate&
&lure2=magazine tube&
&lure3=spring&
&lure4=follower&
&questionNumber=13&
&correctResponse=4&
&mediaStyle=swf&