Platform | Mk17 |
Caliber | 9mm |
Operating System | Compact Action-Radial Delayed Blowback |
Barrel Length | 6.5 |
Barrel Twist | 1:10 |
Barrel Contour | MT |
Barrel Material | 4140CM, SBN |
Barrel Twist | 1:10 |
Muzzle Device | CMMG ZEROED Linear Compensator |
Muzzle Thread | 1/2 x 28 |
Gas Port Location | N/A |
Gas Block | N/A |
Upper Receiver | DISSENT 9mm 7075 T6 Aluminum |
Lower Receiver | Mk17 Forged 7075 T6 Aluminum |
Hand Guard | CMMG 5.5" Proprietary |
Finish | Cerakote |
Charging Handle | Dissent Side Charger - Reversible |
Pistol Grip | CMMG ZEROED Pistol Grip |
Buffer Type | N/A |
Receiver Extension | DISSENT Folding Stock Adapter |
Stock / Brace | DISSENT Side Folding Stock |
Trigger Type | ZEROED Drop-In |
Trigger Guard | Integrated |
Safety Selector | CMMG ZEROED 60/90 Degree |
Magazine | Sig Sauer P320 21rd (2) |
Weight | 5.7 lbs |
Length | 16.5" - 26" |








Please Allow 15-30 Days To Process Your Order.
State/local restrictions may apply in CA, CO, CT, DE, DC, HI, IL, MD, MA, MI, NJ, NY, or WA. Customers must review our Firearms Shipping Policy prior to ordering.
Firearms with attached pistol brace. Please confirm your FFL is accepting transfers for pistol brace equipped firearms prior to ordering.
SBR, DISSENT, Mk17, 9MM, 6.5"
Cross compatibility has long been one of the best features in our pistol magazine lower platforms like the Mk17®. Designed to use Sig P320 9mm magazines, shooters can swap seamlessly from pistol to PDW without having to invest in a new variety of proprietary magazines.
The 9mm DISSENT Mk17 combines robust build quality, personalized style with multiple Cerakote coating options, and advanced features throughout. The forward non-reciprocating side charger allows for quick operation that feels second nature without you having to come off target to manipulate the bolt. The DISSENT side folding stock with adjustable length of pull, and adjustable cheek riser.
**All NFA rules apply** NFA Rules Apply All DISSENT SBRs (short barrel rifles) require additional ATF paperwork & processing time. See linked CMMG Resource article for more information. Learn more about NFA rules.
Radial Delayed Blowback™ Compact Action
9mm ammo loadings can vary greatly, from supersonic to subsonic. With a wide range of bullet weights comes new engineering challenges in a new platform. The 9mm Radial Delayed Blowback Compact Action addresses these challenges by utilizing a fixed ejector in the upper receiver. Added benefits are a lighter BCG with less felt recoil while providing consistent performance with a wide range of ammo.
Lifetime Quality Guarantee
We aim to please, that’s why every CMMG product is backed by our Lifetime Quality Guarantee against material and workmanship defects. Learn More.
~Firearms shipping to states with magazine capacity restrictions will only ship with 10rd magazines in place of standard capacity magazines. CMMG does not address any other state compliancy requirements for further restricted states.