109 Weapons Fundamentals Flashcards
Description of M9 Pistol
Semiautomatic, magazine fed, double action, recoil operated pistol
Weight w/o Magazine for M9
33.86 oz
Weight w/ Magazine for M9
40.89 oz
Maximum effective range for M9
50 meters
Maximum range for M9
1800 meters
Magazine for M9
staggered, 15 round capacity
Caliber for M9
9mm NATO
System of Operation for M9
short recoil, semi automatic
Four Weapon Safety Rules
- Treat every weapon as if it were loaded
- Never point your weapon at anything you don’t intend to shoot
- Keep your finger straight and off the trigger until you are ready to fire
- Keep your weapon on safe until you are ready to fire
Condition 1 of the M9
Mag inserted, round in chamber, slide forward, hammer forward and weapon on safe
Condition 2 of the M9
Does not apply to the M9
Condition 3 of the M9
Mag inserted, chamber empty, slide forward and weapon on safe
Condition 4 of the M9
Mag removed, chamber empty, slide forward and weapon on safe
In a tactical situation, what do you do if a pistol does not fire?
Ensure the magazine is fully seated; retract the slide to the rear and release
In a non-tactical situation, what do you do if a pistol does not fire?
Clear/unload the pistol. If the operator cannot determine the cause of the stoppage, evacuate the pistol to organizational maintenance.
Description of M16A4
Lightweight, gas-operated, air-cooled, magazine-fed, shoulder-fired weapon
System of Operation for M16A4
gas-operated, semi-automatic, 3 round burst
Caliber M16A4
5.56MM
M16A4 Weight w/30 round magazine
8.79 pounds
Maximum effective range for M16A4
Point Target: 550 meters
Area Target: 800 meters
Maximum range
3600 meters
Magazine for M16A4
staggered, 30 round capacity
Condition 1 for M16A4 and M4
Safety on, magazine inserted, round in chamber, bolt forward, ejection port covered closed
Condition 2 for M16A4 and M4
Does not apply to the M16A4 rifle
Condition 3 for M16A4 and M4
Safety on, magazine inserted, chamber empty, bolt forward and ejection port cover closed
Condition 4 for M16A4 and M4
Safety on, magazine removed, chamber empty, bolt forward and ejection port cover closed
What does SPORTS mean for the immediate action for a rifle?
S- Slap upwards on the magazine to make sure it is properly seated
P- Pull the charging handle rearward
O- Observe the chambers for rounds and debris
R- Release charging handle to feed new round. Don’t ride charging handle forward
T- Tap forward assist button to ensure bolt is fully seated
S- Shoot weapon
Description of M4 Carbine
lightweight, gas-operated, air-cooled, magazine-fed, shoulder-fired weapon
System of Operation for M4 Carbine
gas operated, semi-automatic, 3 round burst
Caliber of M4
5.56mm
Length of M4 buttstock closed
29.75 inches
Length of M4 buttstock open
33 inches
Weight of M4 w/magazine of 30 rounds
7.5 pounds
Maximum effective range of M4
Point Target: 500 meters
Area Target: 600 meters
Maximum range of M4
3600 meters
Magazine of M4
staggered, 30 round capacity
Description of M1014 Combat Shotgun
Lightweight, gas operated, tubular magazine fed, 12 gauge, semi-automatic shotgun
Caliber of M1014 / Ammo of M1014
Caliber: 12ga
Ammo: 2.75 or 3.00 magnum shells
System of Operation for M1014
ARGO Twin System (Auto Regulating Gas Operated) with dual gas system
Weight of M1014
8.44 pounds
Maximum effect range for M1014
00 Buckshot- 40 yards
Rifle Slug- 100 yards
Magazine Capacity for M1014
- 75 inch shells: 7
3. 00 inch shells: 6
Condition 1 for M1014
Ammunition inserted into the magazine tube, breech bolt forward with round in the chamber, weapon on safe
Condition 2 for M1014
Does not apply for M1014
Condition 3 for M1014
Ammunition inserted into the magazine tube breech bolt forward on an empty chamber, weapon on safe
Condition 4 for M1014
Magazine tube empty, breech bolt forward on an empty chamber, weapon on safe
Description of M67 Frag Hand Grenade
Used to produce causalities by high velocity projection fragments, with a pyrotechnic delay fuse
The average Marine can throw the M67 grenade how many meters?
40 meters
Body of M67
Steel sphere
Filler of M67
6.5 ounces od Composition B
Fuse od M67
M213
Weight of M67
14 ounces
Kill radius of M67
5 meters
Causality Radius
15 meters (fragments can disperse as far away as 230 meters)
Description of M203 grenade launcher
lightweight, single-shot, breech-loaded, pump action(sliding barrel), shoulder-fired weapon attached to M16A4 rifle or the M4 carbine
Length of rifle and grenade launcher
39 inches
Length of barrel only for grenade launcher
12 inches
Weight of launcher unloaded
3 pounds
Weight of launcher loaded
3.5 pounds
weight of rifle and grenade launcher with both fully loaded
11 pounds
Maximum range (approx.) of grenade launcher
400 meters
Maximum effective range for grenade launcher fire team sized target
350 meters
Vehicle or weapon point target for grenade launcher
165 meters
Minimum safe firing range (training and combat) for grenade launcher
Training: 165 meters
Combat: 31 meters
Minimum arming range for grenade launcher
14 to 38 meters
Rate of fire for grenade launcher
5 to 7 rounds per minute
Description of M249 SAW
light, gas-operated, air-cooled, belt or magazine fed, automatic weapon that fires from the open bolt position
Weight of SAW with bipod and tools
17 pounds
Weight with 200 round drum
23.92 pounds
Muzzle Velocity (ball and tracer)
Ball Ammo: 3,025 feet per sec
Tracer Ammo: 2,870 feet per sec
Maximum range for M249
3,600 meters
Maximum effective range for M249 (Point, Area, Grazing)
Point Targets: 800 meters
Area Targets: 1,000 meters
Grazing Fire: 600 meters
Rate of fire sustained for M249
85 rounds per minute, fired in 3 to 5 round bursts, 4 to 5 seconds between bursts, no barrel changes
Rate of fire rapid for M249
- 200 rounds per minute, fire 6 to 8 round bursts, 2 to 3 seconds between bursts, barrel change every 2 minutes
- 850 rounds per minute, continuous burst, barrel change every minute
Condition 1 of M249
Bolt is locked to the rear, safety is on, source of ammunition is in position on the feed tray or in the magazine well, cover is closed
Condition 2 of M249
N/A
Condition 3 of M249
Bolt is forward, chamber is empty, safety is off, source of ammunition is in position on the feed tray or in the magazine well, cover is closed
Condition 4 of M249
Bolt is forward, chamber is empty, safety is off, feed tray is empty or on magazine is inserted, cover is closed
CAUTION THIS WEAPON WILL NOT BE HALF COCKED
What are the two most common types of malfunctions?
Sluggish operation and runaway gun
Sluggish Operation
Gun fires very slowly. It can be due to excessive friction or loss of gas. Excessive friction is usually due to lack of lube or excessive dirt/carbon. Move the regulator setting to two or three. Clean, inspect and lube the gun
Runaway Gun
Gun continues to fire after trigger is released; caused by worn, broken or burred sear or worn sear notch. Point weapon down range. Let the weapon fire off remaining rounds if near end. Team leader should break off belt it not.
Stoppages
Interruption in the cycle of operation caused by faulty gun or ammo
Hang Fire
Cartridge primer has detonated after being struck by the firing but some problem with the propellant powder causes it to burn too slowly and delays the firing projectile
Cook Off
Occurs when the heat of the barrel is high enough to cause the propellant powder inside the round to ignite even though the primer has not been struck
Stuck Cartridge
If swelling is excessive the cartage will be fixed tightly in the chamber. If extractor spring has weakened and does not tightly grip the base of the cartridge, it may fail to extract a round when the bolt locks to the rear.
Description of M240G
air cooled, belt fed, gas operated automatic weapon that fires from the open bolt position
Total system weight (gun and tripod) M240G
45.6 pounds
Weight of machine gun M240G
25.6 pounds
Length of M240G
49 inches
Height of machine gun on tripod M240G
17 inches
Maximum range od M240G
3,725 meters
Maximum effective range for M240G
1,800 meters
Grazing fire for M240G
600 meters
Caliber of M240G
7.62mm
Rate of fire sustained for M240G
100 rounds per min, 6 to 8 round bursts, 4 to 5 seconds in-between, barrel change every 10 minutes
Rate of fire rapid for M240G
200 rounds per min, 10 to 12 round bursts, 2 to 3 seconds between bursts, barrel change every 2 minutes
Rate of fire cyclic for M240G
650 to 950 rounds per min, continuous burst, barrel change every minute depending on gas setting
Condition 1 for M240G
Bolt is locked to the rear, safety is on, source of ammo is in position on the feed tray, cover is closed
Condition 2 for M240G
N/A
Condition 3 for M240G
Bolt forward, chamber is empty, safety is off, source of ammo is in position on the feed tray, cover is closed
Condition 4 of M240G
bolt is forward, chamber is empty, safety is off, feed tray is empty, cover is closed
Description of Caliber .50 Browning, M2HB
belt-fed, recoil operated, air-cooled, crew-served, machine gun. Capable of firing single shot or on automatic
Weight of .50 Cal (gun and tripod)
128 pounds
Length of .50 Cal
65 inches
Maximum range (M2 Ball) .50 Cal
7,400 meters (approx.)
Maximum range effective .50 Cal
1,830 meters
Grazing fire range .50 Cal
700 meters
Caliber of .50 Cal
50
Rate of fire sustained for .50 Cal
40 rounds or less per minute
Rate of fire rapid for .50 Cal
More than 40 rounds per minute
Rate of fire cyclic for .50 Cal
45-550 rounds per minute
Condition 1 for .50 Cal
Ammo is in position on the feed tray, bolt is locked to the rear and bolt latch release lock is up
Condition 2 for .50 Cal
Does not apply
Condition 3 for .50 Cal
Ammo is in position on feed tray, chamber is empty, bolt is forward and bolt latch release lock is up
Condition 4 for .50 Cal
Feed tray is clear of ammo, chamber is empty, bolt is forward and bolt latch release lock is up
Description of MK19 machine gun
self-powered, air-cooled, belt-fed, blowback operated weapon. Used against enemy personnel and light armored vehicles
Weight of MK19 (gun, cradle, tripod)
140.6 pounds
Length of MK19
43.1 inches
Maximum range (M2 ball) MK19
2,212 meters (approx.)
Maximum effective range MK19
1,500 meters
Grazing fire MK19
2,212 meters
Bore diameter MK19
40mm
Rate of fire sustained MK19
40 rounds or less per minute
Rate of fire rapid MK19
60 rounds per minute
Rate of fire cyclic MK19
325-375 rounds per minute
MK19 Firing out of battery
A round is being fired before it is fully seated in the chamber
Describe what the RCO AN/PVQ-31A/B does
Provides the shooter with quick target acquisition at close combat ranges while providing enhanced target identification.
Objective Lens for RCO
32mm
Magnification of RCO
4 power
Eye relief of RCO
1.5 inches
What does BDC stand for?
Bullet Drop Compensator
What is the BDC designed to do?
Compensate for the trajectory of the 5.56mm round from 100-800 meters w/o making adjustments to the sight.
What does the chevron represent on the RCO?
19” (is the average width of a man’s shoulders)
The AN-PVQ-31 reticle includes?
A horizontal mil-scale graduated in 5 mil increments. The distance from the center post to the first mil in 10 mils left and right side.
