M240B, MK19 and .50 cal.
M248, .50 cal and MK19
M9, M203 and MK19
MK19, .50 cal and M17.
Final protective line.
Fire patrol liaison.
First protective line.
Fire proficiency line.
Principle determination of fire (PDF).
Principle direction of enemy (PDE).
Target reference point (TRP).
Final protective line (FPL).
Where you can locate it quickly.
Marginal data area.
Upper right corner.
Prominent natural and man-made features that could be likely targets.
Prominent artificial terrain features that could be a likely target.
Prominent man-made features that will be a definite target.
Natural synthetic features only that could be a target.
Observe and engage anyone within the field with your weapon.
Engage only those persons determined to be hostile.
Engage predetermined targets in the area.
Detect the enemy and notify the chief, Security Forces (CSF).
Lock the charging handle in place prior to immediate action procedures.
Lock the bolt forward during immediate action procedure.
Unlock the bolt and secure the charging handle.
Unlock the bolt during remedial action procedures.
A failure to fire
An operational failure.
Slap, push, open, recall, tap, and shoot
Smooth, pull, open, recoil, tap, and shoot.
Slap, pull, observe, release, tap, and shoot
Slap, push, observe, release, tab, and shoot.
In brand new condition.
Clean, dry, and lubricated.
Fully oiled and lubricated.
Clean and properly lubricated.
Approximate aiming point method.
Adjusted aiming point method.
Advanced aiming point method.
Altitude aiming point method.
Loaded chamber indicator.
Reset the firing pin block.
MK243 MOD 0.
M917 dummy round.
M882 ball, with cannelure.
M882 ball, without cannelure.