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US Weapons
M4 Carbine, M203, M249, M240B, M2
| Question | Answer |
|---|---|
| What is the field manual 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 |
| What are the four fundamentals of marksmanship? | 1.Steady Position 2.Proper Aim (Sight Picture) 3.Breathing 4.Trigger Squeeze |
| What are the two basic elements of the Sight Picture? | 1.Sight Alignment 2.Placing of the Aiming Point |
| What does the acronym SPORTS stand for? | Slap, Pull, Observe, Release, Tap and Squeeze |
| What is remedial action? | Remedial action is the continuing effort to determine the cause for a stoppage normal function and to try to clear the stoppage once it has been identified. |
| Describe the proper procedures for applying remedial action with the M4. | 1.Try to place the weapon on safe 2.Remove the magazine 3.Lock the bolt to the rear 4.Place the weapon on safe if not already done |
| Describe the proper procedure for applying immediate action with the M4. | LOOK ON PAGE 1 |
| Is SPORTS an Immediate or Remedial Action? | Immediate action |
| What is immediate action? | Immediate action involves quickly applying a possible correction to reduce a stoppage without performing troubleshooting procedures to determine the actual cause.(SPORTS) |
| How many times should immediate action be applied to a weapon? | Once. (If Rifle still fails to fire, apply remedial action) |
| What is a malfunction? | The weapon ceasing to fire due to a stoppage resulting from mechanical failure of the weapon, magazine or ammo. |
| Name the different categories of malfunctions for the M4 Rifle. | 1.Failure to feed, chamber or lock 2.Failure to fire cartridge 3.Failure to Extract 4.Failure to Eject |
| What is stoppage? | A stoppage is a failure of an automatic or semiautomatic firearm to complete the cycle of operation. |
| How do you clear a stoppage? | Apply immediate or remedial action |
| What is the definition of Maximum Effective Range? | The greatest distance at which a soldier may be expected to deliver a target hit. |
| What does CLP stand for? | Cleaner - It contains solvents that dissolve firing residue and carbon. Lubricant - It lays down a layer of teflon as it dries to provide lubrication. Preservative - It prevents rust from Forming. |
| Describe the M4 Rifle. | A 5.56 mm, magazine fed, gas-operated, air-cooled, semiautomatic or three-round burst, hand-held, shoulder-fired weapon. |
| What 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? | 2,970 feet 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 |
| Describe the Barrel Rifling for the M4 Rifle. | Right hand twist 1/7 |
| 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 is the overall length of the M4 Rifle? | Buttstock Closed - 29.75 inches Buttstock Open - 33.00 inches |
| What are the four positions for the buttstock of the M4 Rifle? | 1.Closed 2.1/2 Open 3.3/4 Open 4.Full Open |
| What are the 8 steps in the functioning of the M4 rifle? | 1.Feeding 2.Chambering 3.Locking 4.Firing 5.Unlocking 6.Extract ing 7.Ejecting 8.Cocking |
| What part of the M4 Rail Adapter System may be removed to perform PMCS? | Only the Lower Assembly |
| Describe the procedures for clearing the M4 Rifle. | LOOK ON PAGE 2 |
| How do you perform a functions check on the M4 Rifle? | LOOK ON PAGE 3 |
| If you turn the M203 windage screw one increment, how far does that move the strike of the round at 200 meters? | 1 and 1/2 meters |
| What is the maximum range of the M203? | About 400 meters |
| What is the maximum effective range of the M203 against a fire team sized area target? | 350 meters |
| What is the maximum effective range of the M203 against a vehicle or weapon point target? | 150 meters |
| What is the minimum arming range of the 40 mm round fired from the M203? | 14 to 38 meters |
| What is the rate of fire of the M203? | 5 to 7 rounds per minute |
| What Field Manual covers the M203? | FM 3-22.31 |
| What is the casualty radius of a M203 40 mm HE round? | 5 meters |
| What are the 4 fundamentals of M203 marksmanship? | 1.Steady Position 2.Aiming 3.Breathing 4.Trigger Control |
| The M203 uses several fixed type, low velocity 40 mm rounds. Name some of the common types of rounds used. | M433 High Explosive Dual Purpose, M406 High Explosive, M83A1(white)M661(Green)M662(Red)–Star Parachute, M585 White Star Cluster, M713(Red Smoke)M715(Green Smoke)M716(Yellow Smoke)–Ground Marker, M781 Practice, M651 Tactical CS, Buckshot |
| What are the two common malfunctions of the M203? | Failure to cock, Failure to lock |
| What are the five common stoppages of the M203? | Failure to fire, Failure to extract, Failure to eject, Failure to chamber, Safety Fails to stay in position |
| What are the two types of sights on the M203? | Leaf, Quadrant |
| Describe the M203. | The M203 grenade launcher is a lightweight, single-shot, breech-loaded, pump action(sliding barrel), shoulder-fired weapon that is attached to an M16 rifle series, or the M4 carbine series with the M203A1, and M4 carbine series with the rail system. |
| At what range do you zero the M203? | 200 meters |
| How long should you wait before opening the breach to unload the weapon if you happen to have a misfire with the M203? | 30 seconds |
| What is the maximum range of the M249? | 3,600 Meters |
| What is the maximum effective range of the M249 with tripod and T+E? | 1,000 Meters |
| What is the maximum range of the M249 against an area target for both tripod and bipod? | Tripod – 1,000 Meters Bipod – 800 Meters |
| What is the maximum range of the M249 against a point target for both tripod and bipod? | Tripod – 800 Meters Bipod – 600 Meters |
| What does S.A.W. stand for? | Squad Automatic Weapon |
| What is the weight of the M249? | 16.41 Pounds |
| What is the basic load of ammunition for the M249? | 1,000 Rounds (in 200 round drums) |
| What is the length of the M249? | 40.87 Inches |
| Describe the M249. | The M249 machine gun is a gas-operated, air-cooled, belt or magazine-fed, automatic weapon that fires from the open-bolt position. |
| What field manual covers the M249? | FM 3-22.68 |
| What are the rates of fire for the M249? | Sustained rate is 100 rounds per minute, Rapid rate is 200 rounds per minute, Cyclic rate is 650 to 850 rounds per minute |
| What are the 8 major groups of the M249? | Operating Rod Group Barrel Group Handguard Group Buttstock and Buffer Assembly Group Trigger Mechanism Group Gas Cylinder Group Bipod Group Receiver Group |
| The M249 is loaded, fired, unloaded and cleared from what bolt position? | The open bolt position |
| What are the steps to the cycle of functioning for the M249? | Feeding Chambering Locking Firing Unlocking Extracting Ejection Cocking |
| How do you adjust for windage with the M249? | Adjustments for windage are made by traversing the rear sight right and left along the sliding scale. |
| How do you adjust for elevation with the M249? | Adjustments for elevation (range) require the automatic rifleman to turn the elevation knob (closest to the buttstock) on the rear sight to the desired range setting. |
| Name 3 assault firing positions used with the M249. | Shoulder Hip Underarm |
| What are two unique features of the M249? | It has a regulator to change the rate of fire, and it is fed by M16 magazines as well as belt fed |
| What is the weight of the M240B? | Approximately 27.6 pounds |
| What Field Manual covers the M240B? | FM 3-22.68 Chapter 3 |
| Describe the M240B. | The M240B is a belt-fed, air-cooled, gas-operated, fully automatic machine gun that fires from the open bolt position. |
| What is the sustained rate of fire for the M240B? | 100 Rounds per minute fired in 6 to 9 round bursts and 4 to 5 seconds between bursts. Barrel change every 10 minutes. |
| What is the rapid rate of fire for the M240B? | 200 Rounds per minute fired in 10 to 13 round bursts and 2 to 3 seconds between bursts. Barrel change every 2 minutes. |
| What is the cyclic rate of fire for the M240B? | 650 to 950 Rounds per minute fired in continuous bursts. Barrel change every minute. |
| What is the maximum range of the M240B? | 3725 meters |
| What is the maximum effective range of the M240B with tripod and T&E? | 1100 meters |
| What is the maximum effective range of the M240B for an area target? | Tripod –1,100 meters; Bipod – 800 meters |
| What is the maximum effective range of the M240B for a point target? | Tripod – 800 meters, Bipod – 600 meters |
| What is the length of the M240B? | 49 inches |
| What is the maximum tracer burnout for the M240B? | 900 meters |
| What types of ammunition can be used with M240B? | M80 – Ball, M61 – Armor Piercing, M62 – Tracer, M63 – Dummy, M82 – Blank |
| What is the M2 .50 Cal machine gun used for? | Defend against low-flying hostile aircraft, support the infantryman in both attack and defense, destroy lightly armored vehicles, provide protection for motor movements, vehicle parks & train bivouacs, and recon by fire on suspected enemy positions |
| What is the weight of the M2 .50 Cal machine gun? | 84 lbs |
| Which field manual FM covers the M2 .50 Cal? | FM 3-22.65 |
| What is the importance of correct head space adjustment on the .50 Cal machine gun? | Incorrect head space adjustment can cause a malfunction of the gun and lead to sluggish operation or failure to function freely. |
| What is the length of the barrel of the .50 Cal? | 45 iches |
| What is the maximum range of the .50 Cal? | 6,764 Meters |
| What is the muzzle velocity of the .50 Cal? | 3,050 feet per second |
| What is the description of the M2 .50 Cal Machine Gun? | The M2 is a belt-fed, recoil-operated,air-cooled, crew-served machine gun. The gun is capable of single shot, as well as automatic fire, and operates on the short recoil principle. |
| What is the maximum effective range of the .50 Cal against point and area targets? | Point targets Single shot- 1,500 meters Area shot- 1,830 meters |
| To control the rate of fire on the M2, the gunner may use what methods of fire? | 1.Single shot 2.Slow 3.Rapid 4.Cyclic |
| Describe the Single Shot method of fire on the M2 .50 Cal. | Place the gun in the single-shot mode and engage the target with aimed shots. The machine gun is accurate out to 1,500 meters. |
| Describe the Slow method of fire on the M2 .50 Cal. | Slow fire consists of less than 40 rounds per minute, in bursts of five to seven rounds, fired at 10- to 15-second intervals. |
| Describe the Rapid method of fire on the M2 .50 Cal. | Rapid fire consists of more than 40 rounds per minute, fired in bursts of five to seven rounds, at 5- to 10-second intervals. |
| Describe the Cyclic method of fire on the M2 .50 Cal. | Cyclic fire is when the weapon fires 450 to 550 rounds per minute. |
| What is the length of the .50 Cal, overall? | Approximately 65.13 inches |
| What is the cyclic rate of fire of the M2 .50 Cal? | 450-550rounds a minute |
| What type of front sight does the M2 .50 Cal have? | A semi-fixed blade type with cover |
| What type of rear sight does the M2 .50 Cal have? | A leaf type rear sight graduated in both yards and mils |
| What are the common malfunctions of the M2 .50 Cal? | 1.Failure to function freely 2.Uncontrolled automatic fire |
| What are the common stoppages of the M2 .50 Cal? | Failure to feed, Chamber, Lock, Fire, Unlock, Extract, Eject, Cock |
| What are the ten major components and assemblies of the M2 .50 Cal? | 1.Barrel Group 2.Carrier Assembly 3.Back plate Group 4.Receiver Group 5.Bolt Stud 6.Cover Group 7.Barrel Buffer Body 8.Barrel extension group 9.Bolt Group 10.Driving Spring Rod Assembly |
| 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 is the purpose of a weaponeer? | LOOK ON PAGE 3 |
| During Preliminary Marksmanship Training (PMI), what are the only two positions taught? | Individual Foxhole Supported; Basic Prone Unsupported |
| What are the steps required in order to mechanically zero the M4? | LOOK ON PAGE 1 |
| What are the steps required in order to battle sight zero the M4? | LOOK ON PAGE 2 |
Created by:
r.burns
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