Ambivalent Skeptic

November 18, 2010

AR and M16 stats

Filed under: Weapons — Clint1911 @ 11:52 pm

Here is some info on on the military’s spec’s for the AR platform. There is a lot of misunderstanding about the what and the how of this weapon.

Please note, the M16A2 and M16A3 are the same rifle except the A3 is full auto while the A2 has a three round burst. This makes sense being that the A3 was introduced at the same time as the A2 which was BEFORE the picatinny rail standard was made.

In boot camp is was drilled into our minds that the M16A2 was a lightweight, magazine fed, air cooled, shoulder fired, selective fire 5.56mm rifle.

The original M16 weighed 6.35 lbs while the M16A1 weighed 6.55 lbs. The A2 mod boosted the weight up to 7.5 lbs.

EQUIPMENT CHARACTERISTICS, CAPABILITIES, AND FEATURES
M16A2/M16A3
Caliber ……………………………………… 5.56 mm
Weight……………………………………… w/30 (loaded) round mag approx 8.79 lbs
Length ……………………………………… w/compensator 39-5/8 in
Fire Selector……………………………… SAFE-SEMI-BURST (M16A2)
SAFE-SEMI-AUTO (M16A3)
—————————————————————————————————
M16A4 (removable carry handle)
Caliber.. ……………………………………. 5.56 mm
Weight.. ……………………………………. w/30 (loaded) round mag 8.79 lbs
Fire Selector…………………………… SAFE-SEMI-BURST
—————————————————————————————————–
M4/M4A1 CARBINE
Caliber …………………………… 5.56 mm
Weight …………………………….. w/30 (loaded) round mag 7.5 lb
Length …………………………….. Buttstock Closed 29.75 in
Buttstock Opened 33.0 in
Detachable carrying handle w/integral accessory mounting rail
Buttstock has four positions; closed, 1 R open, 3/4 open, and fully Open.
Firing Characteristics:
Muzzle Velocity . . . . . . . . . . . . . . . . . . . . 2,970 fps
Chamber pressure . . . . . . . . . . . . . . . . . . . 52,000 psi
Cyclic Rate of Fire…………….. 700-970 rpm (approx.)
Fire Selector ………………………. SAFE-SEMI-BURST (M4)
SAFE-SEMI-AUTO (M4A1)

ARMY TM 9-1005-319-23&P

AIR FORCE TO 11W3-5-5-42

1-10. EQUIPMENT DATA.

US CUSTOMARY / METRIC

Weight:

Carbine, M4/M4A1 without magazine and sling …… 6 lb 7 oz 2.91 kg

Rifle, Ml 6A2 without magazine and sling……………. 7 lb 8 oz 3.40 kg

Sling, adjustable ……………………………………………… 4 oz 0.11 kg

Empty magazine……………………………………………… 4 oz 0.11 kg

Loaded magazine ……………………………………………. 1 lb 1 oz 0.48 kg

Carbine, M4/M4A1 w/sling and loaded magazine … 7 lb 12 oz 3.51 kg

Rifle M16A2 w/sling and loaded magazine………….. 8 lb 13 oz 4.00 kg

Bayonet-Knife M7 ……………………………………………. 10.5 oz 0.30 kg

Scabbard M10 o ……………………………………………… 5 oz 0.14 kg

Length:

Carbine with compensator, buttstock extended……. 33.0 in 83.82 cm

Carbine with compensator, buttstock closed ……….. 29.75 in 75.57 cm

Rifle with compensator …………………………………….. 39.63 in 100.66 cm

Barrel (Carbine) ………………………………………………. 14.5 in 36.83 cm

Barrel (Rifle)……………………………………………………. 20 in 50.8 cm

Barrel with compensator (Carbine)…………………….. 15.5 in 39.37 cm

Barrel with compensator (Rifle) …………………………. 21 in 53.34 cm

Mechanical features:

Rifling…………………………………………………………….. right-hand twist 6 grooves, 1 turn

……………………………………………………………………… in 7 inches (17.78 cm)

Method of operation…………………………………………. direct gas

Type of breech mechanism ………………………………. rotating bolt

Method of feeding……………………………………………. magazine

Cooling…………………………………………………………… air

Trigger pull (M16A2 & M4)………………………………… 5.5 to 9.5 lb 2.49 to 4.31kg

Trigger pull (M4A1)………………………………………….. 5.5 to 8.5 lb 2.49 to 3.86 kg

Ammunition:

Caliber …………………………………………………………… 223 5.56mm

Type………………………………………………………………. ball, blank, dummy, and tracer

Firing characteristics:

Muzzle velocity (Carbine) (approximate) …………….. 2,970 fps 905.85 mps

Muzzle velocity (Rifle) (approximate)………………….. 3,100 fps 945.5 mps

Chamber pressure…………………………………………… 52,000 psi 358,540

kPa

Cyclic rate of fire (Carbine) (approximate)…………… 700-970 rds/m

Cyclic rate of fire (Rifle) (approximate) ……………….. 700-900 rds/m

1-4.2 Change 5

ARMY TM 9-1005-319-23&P

AIR FORCE TO 11W3-5-5-42

1-10. EQUIPMENT DATA (CONT).

US CUSTOMARY METRIC

Maximum rate of fire:

Semiautomatic………………………………………………… 45 rds/m

Burst ……………………………………………………………… 90 rds/m

Sustained rate of fire ……………………………………….. 12/15 rds/m

Maximum range………………………………………………. 3,938 yards Approximately

3,600 meters

Maximum effective range:

Individual/point targets (Carbine)……………………….. 547 yards 500 meters

Individual/point targets (Rifle) ……………………………. 602 yards 550 meters

Area targets (Carbine) ……………………………………… 650 yards 600 meters

Area targets (Rifle) ………………………………………….. 875 yards 800 meters

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