Bushmaster M4 Patrolman's
- Category
- Carbine
- Barrel
- 406 mm
- Weight, empty
- 3.13 kg
- Introduced
- 2014
About
What it is, and why it matters
The Bushmaster M4 Patrolman's is a hard-use 16-inch M4-pattern AR-15 carbine in 5.56 NATO built for duty and law-enforcement service. It combines a 4150 CMV salt-bath-nitride barrel, 7075 forged upper and lower receivers, an F-marked A2 front sight, a 6/3 detachable carry handle, and Magpul furniture including an MOE SL handguard, CTR stock, and MOE grip. The line spans MOE flat-top, MOE carry-handle, flat-top with flip-up sight, and BFSIII binary-trigger configurations.
The 'Patrolman's' designation reflected the M4's intended buyer - the patrol officer who needed a dependable, no-frills duty carbine - and the model became a staple of police trunk racks during Bushmaster's Remington years before being reissued by the revived company.
MSRP approximately $951. Offered in MOE flat-top, MOE carry-handle, plain flat-top, flip-up sight, BFSIII, and California-compliant configurations, with 10- and 30-round options by state.
Specification
Everything measured
IdentityWhat it is, who built it and when.
- Manufacturer
- Bushmaster Firearms International
- Category
- Carbine
- Country
- United States
- Status
- In production
- Produced
- 2014
DimensionsAs issued, without a magazine or an optic.
- Barrel
- 406 mm
- Overall length
- 902 mm
- Weight, empty
- 3.13 kg
ActionHow it cycles, what trips it, and what feeds it.
- Action
- Gas operated direct impingement
- Firing mechanism
- Hammer fired
- Trigger
- Single stage
- Capacity
- 30
- Magazine
- Detachable box
MaterialsEach swatch is the material itself, not a colour chosen to stand for it.
- Frame
- Aluminum alloy
- Barrel
- Chrome moly steel
- Stock
- Polymer
- Finish
- Salt bath nitride
BallisticsFrom the service cartridge, not a handload.
- Muzzle velocity
- 945 m/s
- Muzzle energy
- 1755 J
- Effective range
- 500 m
- Maximum range
- 3600 m
Trajectory
What the round does downrange
Solved from the muzzle figures and the bullet. The dashed rule is the effective range on the record, and the crosses are the steps the solver returned.
Features
What it has
What the record lists as fitted, drawn from the catalogue.
Carbine length gas system
Magpul furniture
Magpul moe sl handguard
Magpul ctr stock
F marked front sight
Detachable carry handle
Forged 7075 receivers
Chrome moly barrel
Adjustable stock
Made in usa
Standing
How it compares
Each figure against the firearms of the same type and cartridge that record it, or of the same type where that cartridge has too few. Positions are read to the nearest tenth.
| Measurement | This firearm | Median | Position |
|---|---|---|---|
| Empty weightAmong 141 5.56x45mm NATO carbines | 3.13 kg | 2.95 kg | Heavier than about 70% |
| Overall lengthAmong 144 5.56x45mm NATO carbines | 902 mm | 838 mm | Longer than about 80% |
| Barrel lengthAmong 150 5.56x45mm NATO carbines | 406 mm | 406 mm | Longer than about 70% |
| Magazine capacityAmong 150 5.56x45mm NATO carbines | 30 | 30 | Near the median |
Answers
Questions about the Bushmaster M4 Patrolman's
How much does the Bushmaster M4 Patrolman's weigh?
The Bushmaster M4 Patrolman's weighs 3.13 kg (6.90 lb) empty.
What caliber is the Bushmaster M4 Patrolman's?
The Bushmaster M4 Patrolman's is chambered in 5.56x45mm NATO.
How many rounds does the Bushmaster M4 Patrolman's hold?
The Bushmaster M4 Patrolman's holds 30 rounds, fed from a detachable box magazine.
How long is the Bushmaster M4 Patrolman's?
The Bushmaster M4 Patrolman's is 902 mm (35.5 in) long overall, with a 406 mm (16.0 in) barrel.
Who makes the Bushmaster M4 Patrolman's?
The Bushmaster M4 Patrolman's is made by Bushmaster Firearms International (United States).
When was the Bushmaster M4 Patrolman's introduced?
The Bushmaster M4 Patrolman's was introduced in 2014.
How does the Bushmaster M4 Patrolman's operate?
The Bushmaster M4 Patrolman's uses a gas operated direct impingement action, and its firing mechanism is hammer fired.
Compatibility
Which parts fit this firearm
Studio
Every part that mounts on this, resolved
Not a list the maker typed out: the answer comes from the mounts this firearm exposes and the interface each part needs, so it stays right when either one changes.
- Every part that mounts on any firearm in the catalogue
- Interface standards, platforms and fit overrides
- The same answers through the API and the MCP server
Requires a signed-in GunSpec account on the Studio plan. The answer is computed per part, so it is not part of the public record.
Provenance
What the record holds
Every figure above was taken from one of these pages. The confidence reflects how much of the record came from a page a claim can be checked against.
Provenance
Confidence in this record
78%
Stockists
Where to buy
Offers link straight to the shop. GunSpec never takes the order.
No shop has listed this firearm yet
Stock and prices come from the shops themselves. If you sell this firearm, you can list it and it appears here.
List a firearmMCP
Ask an assistant about it
The same record, reached the way a person asks for it rather than the way a program does.
Ask GunSpec
Works with
Point an MCP client at GunSpec and it answers from the catalogue rather than from memory. A free key covers the read tools.
API
The call that returns this record
The same fields, in the same units, from the same endpoint the page reads.
curl --request GET \ --url 'https://api.gunspec.io/v1/firearms/bushmaster-m4-patrolman' \ --header 'X-API-Key: your_key'{ "id": "bushmaster-m4-patrolman", "name": "Bushmaster M4 Patrolman's", "manufacturer": { "id": "bushmaster", "name": "Bushmaster Firearms International", "countryCode": "US", "foundedYear": 1973, "website": "https://www.bushmaster.com", "logoUrl": null, "description": null, "status": null, "defunctYear": null, "stateOwned": null, "makesFirearms": null, "parentId": null, "predecessorId": null, "createdAt": "2026-02-11 23:44:38", "updatedAt": "2026-02-18 03:43:43", "version": "03ce3f7c1eccaa2ca96d02509bf7ac8fd765e20d3dc759b45ee02f86a4c6348e" }, "category": { "id": "carbine", "name": "Carbine", "description": "Shortened rifles for close-quarters use" }, "country_of_origin": "US", "year_introduced": 2014, "barrel_length_mm": 406, "weight_empty_g": 3130, "action_type": "gas_operated_direct_impingement"}