115 - Weapons

Question 1

M16A1 weight

Answer 1

Without mag & sling: 6.35
W sling & 20 round mag: 6.75
W sling & 30 round mag: 7.06

Question 2

M16A1 length

Answer 2

Rifle w bayonet knife: 44.25 inches

Overall length: 30.00 inches

Question 3

M16A1 muzzle velocity and rate of fire

Answer 3

3250 ft/sec
Cyclic rate of fire: 700-800 rounds per minute
Semiauto: 45-65 rpm
Auto: 150-200 rpm
Sustained: 12-15 rpm

Question 4

M16A1 range

Answer 4

Max range: 2653 meters

Max effective, point target: 460 m

Question 5

M4 weight

Answer 5

W/o mag & sling: 6.49 lb
W sling & 20-round mag: 7.19 lb
W sling & 30-round mag: 7.50 lb

Question 6

M4 length

Answer 6

Buttstock closed: 29.75 inches

Buttstock open: 33.0 inches

Question 7

M4 muzzle velocity and rates of fire

Answer 7

Muzzle vel: 2970 ft/sec
Cyclic rate of fire: 700-900 rpm
Max effective semi: 45
ME 3-round burst: 90
Sustained: 12-15

Question 8

M4 range

Answer 8

Max: 3600m
Max eff range, point target: 500m
ME, area target: 600m

Question 9

Characteristics of service rifle

Answer 9

5.56mm magazine-fed
Gas-operated
Air-cooled
Shoulder-fired

Ejection port & cover, housing for gas key, bolt carrier & bolt assembly, with mounting service for carrying handle assembly
Carbine barrel assembly is air-cooled with compensator and front sight assembly, holds rail system and sling swivel

Question 10

Service rifle ammo

Answer 10

Ball M855 - primary, green tip, penetrating
Tracer M856 - bright red tip, 1:4 with ball
Dummy M199 - six grooves along sides, for dry fire training
Blank M200 - violet tip, seven-petal rosette crimp
MK-262 - no color, 5.56-mm
MK-318 mod 0 - special ops science and technology, stays on target better than ball after penetrating barriers

Question 11

Safety rules

Answer 11

1: treat every weapon as if it were loaded
2: never point a weapon at anything you do not intend to shoot
3: Keep your finger straight and off the trigger until you are ready to fire
4: keep the weapon on safe until you intend to fire

Question 12

Weapons conditions

Answer 12

1: safety on, mag inserted, round in chamber, bolt forward, ejection port cover closed
2: not applicable
3: safety on, mag inserted, chamber empty, bolt forward, EPC closed
4: safety on, mag removed, chamber empty, bolt forward, EPC closed

Question 13

Determine weapon condition

Answer 13

Determine if magazine is present
Ensure on safe
Conduct chamber check

Question 14

Characteristics of service pistol

Answer 14

Semiautomatic, magazine fed, recoil operated, double/single action, chambered for NATO 9mm round

Question 15

M9 caliber

Answer 15

9x19mm

Question 16

M9 dimensions

Answer 16

8.54 inches long
1.50 inches wide
5.51 inches height
Barrel length 4.92 inches

Question 17

M9 weight

Answer 17

W empty mag 960g

W 15 round mag 1145g

Question 18

M9 ranges

Answer 18

Max effective range: 50m

Max range: 1800m

Question 19

Immediate actions to clear stoppage for T/O service pistol

Answer 19

TAP: slap the bottom of magazine
RACK: pull the slide to the rear and release
BANG: sight and fire

Question 20

M203

Answer 20

Grenade launcher

Question 21

M203 dimensions/weight

Answer 21

Length overall - 9cm
Launcher weight unloaded/loaded - 3/3.5 lb
Wt rifle and grenade launcher fully loaded - 11 lb

Question 22

M203 ammo

Answer 22

40mm, 8 oz

Question 23

M203 range, rate of fire, combat load

Answer 23

Max range - 400m
Rate of fire - 5-7rpm
Minimum combat load - 36 HE rounds

Question 24

M240G

Answer 24

Machine gun

Question 25

M240 weight, dimensions, range, ammo

Answer 25

45.6 lb, machine gun 25.6 lb
Length 49 inches
Max range 3725m
Max effective 1800m
Caliber 7.62mm

Question 26

M2 .50 cal weight, dimensions, ranges, ammo

Answer 26

Weight complete - 128 lb
Receiver 60 lb
Barrel 24 lb
Length barrel - 45 inches
Max M2 ball range - 7400m
Max effective - 1830m
Ammo: 50 caliber

Question 27

MK-19 use

Answer 27

Offense and defense, close and far, including:
Protection while moving
Defend against hovering rotary aircraft
Destroy LAVs
Fire on enemies
High volume fire on engagement area
Cover obstacles
Indirect fires

Question 28

MK-19 weights, dimensions, ranges

Answer 28

Total: 140.6 lb
Gun: 75.6 lb
Cradle (MK64 MOD5): 21 lb
M3 tripod: 44 lb
Length: 43.1 inches
Max range: 2212m
Ammo: 40mm caliber

Question 29

Components and weights of 81mm mortar

Answer 29

System: 121.5 lb
Cannon, mount, baseplate
Barrel: 12.8 lb
Mount: 40 lb
M3 baseplate: 25.4
M23A1 baseplate: 48
M53 sight unit: 5.25

Question 30

81mm range and rate of fire

Answer 30

70-4737 meters range
Rate sustained: 3 (charge 8) - 5 (charge 6) per min for 1 min
Max 2 min: 12 (charge 8) rpm
Max 5 min: 12 (charge 6) rpm

Question 31

81mm mortar cartridges

Answer 31

High explosive M374, M362
White phosphorus M375/370/57
Illuminating: M301
Training: M68/880

Question 32

60mm mortar/M224 weights

Answer 32

Complete: 46.5lb
Cannon M225: 18
Bipod M170: 15.2
Sight unit M64A1: 14.4
Baseplate M7: 3.6

Question 33

60mm mortar range and ammo uses

Answer 33

70-3490 m
HE for personnel and light materiel targets
WP screening, signaling, casualty-producing, or incendiary
ILLUM night missions
TP training in limited areas

Question 34

M777, 155mm howitzer length and weights

Answer 34

Length in tow: 9.5m
Firing: 10.7m
Weight 3175kg
Bore diameter 155mm
5 crew

Question 35

Howitzer ranges and rates of fire

Answer 35

Max effective range: 24km w M109 ammo
30km w ERFB base-bleed
40km w Excalibur
Rate: max 5rpm, sustained: 2rpm

Question 36

M142 high mobility artillery rocket system (HIMARS) weight and dimensions

Answer 36

Length 7m
Weight 12-15 tons
Height 3.2m
Width 2.4m

Question 37

HIMARS range, speed, armament, crew

Answer 37

Range 480km
Speed 85km/h
Arm: 6x M270 multiple launch rocket system series rockets, or 1x MGM 140 ATACMS missile
3 enlisted

Question 38

TOW (targeted optical wire-guided) weapon system purpose

Answer 38

Portable, vehicle mounted, heavy antiarmor to defeat armored vehicles and field fortifications from afar (3750m)