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BSmall arms
At a glance
Bushmaster M4-type Carbinelarger figure on 0 of 4
Mk 13 riflelarger figure on 4 of 4
Counts only measures both sources give with the same scope. A larger figure is not a better system.
Measured figures
Length
Single source882.7 mm (34.75 in)[source]
Length
Single sourceConfiguration
| Specification | Bushmaster M4-type Carbine | Mk 13 rifle |
|---|---|---|
| Type | Assault rifle Carbine Semi-automatic carbine (M4gery)[source] | — |
| Place of origin | United States[source] | — |
| Wars | War in Afghanistan (2001–2021) War in Iraq (2003–2011)[source] | War in Afghanistan Iraq War[source] |
| Manufacturer | Bushmaster Firearms International[source] | Accuracy International[source] |
1207 mm (47.5")[source]
Bars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.
| Cartridge |
|---|
.223 Remington 5.56×45mm NATO 6.8mm Remington SPC 7.62×39mm[source] |
.300 Winchester Magnum[source] |
| Action | Gas-operated , closed rotating bolt , Stoner bolt and carrier piston[source] | Bolt action[source] |
|---|
| Rate of fire | 700–950 round/min ( fully automatic )[source] | — |
|---|
| Feed system | STANAG magazines[source] | 5-round magazine (MOD 5)[source] |
|---|
| Sights | Iron sights or various optics[source] | Nightforce Advanced Tactical Riflescope[source] |
|---|
| Role | semi-automatic or select-fire carbine size assault rifle[source] | — |
|---|
| Source measurement | The rifle's caliber is .223 Remington/5.56×45mm NATO, and the barrel is hard chrome lined in both the bore and chamber. Unlike the current Colt M4 Carbine which features a four-position telescopic stock , the Bushmaster has a six-position stock. It is compatible with most standard AR-15 parts, can mount various attachments such as options on its picatinny rails and has the ability to accept all AR-15/ M16 type STANAG magazines .[source]Bushmaster M4-type Carbine · Design; only the objects and conditions stated in this passage The standard M4 Type Carbine features a permanently fixed "Izzy" flash suppressor attached to a 14.5 in (370 mm) barrel, which brings the barrel to a total length of 16 in (410 mm). Bushmaster also produces the Patrolman's Carbine variant which features the more common removable "bird cage" flash suppressor, attached to a 16 in (410 mm) barrel, bringing the total barrel length to 17.5 in (440 mm). Both of these comply with current U.S. federal law which states a minimum 16 in (410 mm) barrel for a rifle. There is also a military M4 Type Carbine which comes with a 14.5 in (370 mm) barrel and a removable "bird cage" flash suppressor.[source]Bushmaster M4-type Carbine · Design; only the objects and conditions stated in this passage | — |
|---|
| In service | — | 2001–present[source] |
|---|
| Used by | — | United States[source] |
|---|
| Designer | — | Accuracy International / Remington Arms[source] |
|---|
| Variants | — | Mk 13 MOD 5 Mk 13 MOD 7[source] |
|---|
| Calibre | — | .308[source] |
|---|
| Country of origin | — | United Kingdom[source] |
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| Reported operators |
| — |
|---|