STP 21-1 / STP 21-24 / FM 3-22.9 / FM 3-22.68 – Rifle Marksmanship M4 - 5.56 mm Semiautomatic Rifle Flashcards
What is the FM concerning the M4 Rifle?
FM 3-22.9
What is the first thing you should do when you handle a weapon?
Make sure you clear it
Name the five phases in Basic Rifle Marksmanship.
- Preliminary Rifle Instruction
- Downrange Feedback
- Field Fire
- Advanced Rifle Marksmanship
- Advanced Optics, Laser and Iron Sights
What are the steps required in order to mechanically zero the M4?
- Adjust the front sight post (1) up or down until the base of the front sight post is flush with the front sight post housing (2).
- Adjust the elevation knob (3) counterclockwise, when viewed from above, until the rear sight assembly (4) rests flush with the detachable carrying handle and the 6/3marking is aligned with the index line (5) on the left side of the carrying handle.
- Position the apertures(6) so the unmarked aperture is up and the 0-200 meter aperture is down. Rotate the windage knob (7) to align the index mark (8) on the 0-200 meter aperture with the long center index line on the rear sight assembly.
What are the steps required in order to battle sight zero the M4?
- Adjust the elevation knob (1) counterclockwise, when viewed from above, until the rear sight assembly (2) rests flush with the detachable carrying handle and the 6/3marking is aligned with the index line (3) on the left side of the detachable carrying handle. The elevation knob remains flush.
- Position the apertures(4) so the unmarked aperture is up and the 0-200 meter aperture is down. Rotate the windage knob (5) to align the index mark (6) on the 0-200 meter aperture with the long center index line on the rear sight assembly
Describe the M4 Rifle.
A 5.56 mm, magazine fed, gas-operated, air-cooled, semiautomatic or three-round burst, hand-held, shoulder-fired weapon.
at are the 7 types of ammunition that can be used with the M4 Rifle?
- M193 – Ball
- M196 – Trace
- M199 – Dummy
- M200 – Blank (Violet tip and 7 petal rose crimp)
- M855 – Ball (Green Tip)
- M856 – Tracer (Red Tip)
- M862 – Short Range Training Ammunition (Plastic with a Blue Tip)
Describe the weights of the M4 Rifle without mgazine and sling, with sling and loaded 20 round magazine and with sling and loaded 30 round magazine.
Without Magazine and Sling - 6.49 pounds
With Sling and a loaded 20 round magazine - 7.19 pounds
With Sling and a loaded 30 round magazine - 7.50 pounds
Describe the max effective rates of fire for the M4 Rifle.
Semiautomatic - 45 rounds per minute
Burst - 90 rounds per minute
Sustained - 12-15 rounds per minute
What is the muzzle velocity of the M4 Rifle?
2,970feet per second
Describe the ranges for the M4 Rifle.
Maximum Range - 3,600 meters
Max Effective Range for a Point Target - 500 meters
Max Effective Range for an Area Target - 600 meters
What is the basic load of ammunition for the M4?
210 Rounds total. (7 magazines with 30 rounds in each)
The elevation knob adjusts the point of aim for the M4 Rifle how much?
300 to 600 meters
What are the four positions for the buttstock of the M4 Rifle?
- Closed
- 1/2 Open
- 3/4 Open
- Full Open
What part of the M4 Rail Adapter System may be removed to perform PMCS?
Only the Lower Assembly