Owners of the CMMG Resolute 100 MK4 in .300 Blackout talk about a few recurring things. The .300 Blackout cartridge is the main draw. It runs subsonic loads quietly through a suppressor and steps up to supersonic for hunting without swapping rifles. Most users call the build solid: receivers feel tight, the barrel holds respectable groups, and recoil is easy to manage at 6.3 lbs.
Customization comes up often. The M-Lok handguard makes mounting lights, grips, and foregrips straightforward, and the platform's AR familiarity means the aftermarket options are nearly unlimited.
The two friction points that come up consistently are price and ammo cost. The Resolute sits above entry-level .300 Blackout options, and the cartridge itself costs more per round than 5.56. Users who shoot suppressed or who hunt with the platform tend to feel the premium is justified; those who want a range-only plinking rifle sometimes look elsewhere. Subsonic ammo availability can also be spottier than supersonic options depending on the region.
AI-generated insights derived from customer reviews and discussions on popular gun-enthusiast forums.
