CMMG Resolute Mk17
- Category
- Carbine
- Barrel
- 409 mm
- Weight, empty
- 2.90 kg
- Introduced
- 2021
About
What it is, and why it matters
The CMMG Resolute Mk17 is a 9mm pistol-caliber carbine built on CMMG's AR-15 pattern Mk17 platform and operating on the company's Radial Delayed Blowback system, which lightens the bolt and softens recoil compared with traditional straight-blowback PCCs. The 16.1-inch, 1:10-twist barrel makes it a rifle-length carbine rather than a braced pistol, wearing a CMMG EML15 M-LOK free-float handguard, ZEROED muzzle brake on a 1/2x28 threaded muzzle, ambidextrous ZEROED charging handle, drop-in ZEROED trigger, and a RipStock collapsible buttstock. The Mk17 designation denotes SIG Sauer P320 magazine compatibility, feeding from 21-round magazines, and the whole rifle is finished in Cerakote.
The Mk17 designation across CMMG's line indicates SIG Sauer P320 magazine compatibility, distinct from Glock-fed (Mk9) or Colt-fed (Mk4) 9mm models. The Resolute is CMMG's full-length rifle line; the Banshee Mk17 is the compact braced-pistol/SBR sibling on the same operating system.
Specification
Everything measured
IdentityWhat it is, who built it and when.
- Manufacturer
- CMMG Inc.
- Category
- Carbine
- Country
- United States
- Status
- In production
- Produced
- 2021
DimensionsAs issued, without a magazine or an optic.
- Barrel
- 409 mm
- Overall length
- 826 mm
- Weight, empty
- 2.90 kg
ActionHow it cycles, what trips it, and what feeds it.
- Action
- Delayed blowback
- Firing mechanism
- Hammer fired
- Trigger
- Single stage
- Capacity
- 21
- Magazine
- Detachable box
MaterialsEach swatch is the material itself, not a colour chosen to stand for it.
- Frame
- Aluminum
- Barrel
- Steel
- Stock
- Polymer
- Finish
- Cerakote
BallisticsFrom the service cartridge, not a handload.
- Effective range
- 100 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.
Radial delayed blowback
M lok handguard
Free floating handguard
Ambidextrous charging handle
Muzzle brake
Threaded barrel
Collapsible stock
Accessory rail
Uses sig p320 magazines
Drop in trigger
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 62 9x19mm Parabellum carbines | 2.90 kg | 2.78 kg | Heavier than about 70% |
| Overall lengthAmong 56 9x19mm Parabellum carbines | 826 mm | 820 mm | Near the median |
| Barrel lengthAmong 64 9x19mm Parabellum carbines | 409 mm | 406 mm | Longer than about 70% |
| Magazine capacityAmong 64 9x19mm Parabellum carbines | 21 | 24 | Holds fewer rounds than about 60% |
Answers
Questions about the CMMG Resolute Mk17
How much does the CMMG Resolute Mk17 weigh?
The CMMG Resolute Mk17 weighs 2.90 kg (6.40 lb) empty.
What caliber is the CMMG Resolute Mk17?
The CMMG Resolute Mk17 is chambered in 9x19mm Parabellum.
How many rounds does the CMMG Resolute Mk17 hold?
The CMMG Resolute Mk17 holds 21 rounds, fed from a detachable box magazine.
How long is the CMMG Resolute Mk17?
The CMMG Resolute Mk17 is 826 mm (32.5 in) long overall, with a 409 mm (16.1 in) barrel.
Who makes the CMMG Resolute Mk17?
The CMMG Resolute Mk17 is made by CMMG Inc. (United States).
When was the CMMG Resolute Mk17 introduced?
The CMMG Resolute Mk17 was introduced in 2021.
How does the CMMG Resolute Mk17 operate?
The CMMG Resolute Mk17 uses a delayed blowback 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.
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/cmmg-resolute-mk17' \ --header 'X-API-Key: your_key'{ "id": "cmmg-resolute-mk17", "name": "CMMG Resolute Mk17", "manufacturer": { "id": "cmmg", "name": "CMMG Inc.", "countryCode": "US", "foundedYear": 2002, "website": "https://cmmg.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": "a7e68de40df3e6e52ce7309f32c551e46f69ca644a4955a2de5291d2bfbf7a0b" }, "category": { "id": "carbine", "name": "Carbine", "description": "Shortened rifles for close-quarters use" }, "country_of_origin": "US", "year_introduced": 2021, "barrel_length_mm": 409, "weight_empty_g": 2903, "action_type": "delayed_blowback"}