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There aren't many rifles that feel like a classic bolt gun in the hands but run like a modern semi auto, and that's exactly the lane the CMMG Dissent BR3 lives in. Built on CMMG's AR10-sized Mk3 platform with their compact action, this .308 does away with the buffer tube entirely and swaps standard AR controls for a reversible crossbolt safety and a Remington 870 pattern Magpul SGA stock. The result is a rifle that shoulders like the shotguns and lever guns you grew up with while still feeding from PMAGs and cycling as fast as you can press the trigger.
The 16.1 inch 4140CM barrel wears a black nitride finish, spins bullets on a 1:10 twist, and comes threaded 5/8×24 with CMMG's Zeroed muzzle brake already installed. Want to run a can? The adjustable gas block lets you tune the system for suppressed shooting or dial it in for your favorite load, so you get clean cycling without getting beat up by excess gas. Up top, a full-length Picatinny rail gives you plenty of real estate for a scope or red dot, and the 15 inch M-LOK handguard handles bipods, lights, and sling mounts without adding bulk. The billet 7075-T6 aluminum receiver is finished in Tungsten Cerakote, which looks sharp and holds up to weather and field wear.
At 8.9 pounds with a 39.6 inch overall length, the BR3 carries its weight well and balances nicely between the hands. The forward side charging handle keeps your optic mount uncluttered, and the single-stage trigger breaks clean enough for practical accuracy work at distance. Since the stock is 870 pattern, swapping length of pull or furniture down the road is simple. Whether you're chasing deer and hogs, ringing steel past 300 yards, or just want a .30 caliber semi auto that doesn't look or feel like everything else at the range, the Dissent BR3 delivers. CMMG backs it with their Lifetime Quality Guarantee, and two 10-round PMAGs come in the box.
Yes. The 16.1 inch barrel is threaded 5/8×24 and ships with CMMG's Zeroed muzzle brake, so most .30 caliber suppressors will spin right on. The adjustable gas block is the real bonus here, letting you turn the gas down for suppressed shooting so the rifle stays soft and clean-running.
It runs standard SR-25/AR10 pattern Magpul PMAGs, and two 10-round mags come in the box. That makes finding spares easy since PMAGs are stocked just about everywhere.
You can. The BR3 is built around Remington 870 pattern stocks, and it ships with the Magpul SGA, which itself has adjustable length of pull spacers. Because the compact action has no buffer tube, you have real freedom in stock choice compared to a typical AR10.
It's a strong pick for deer and hog country. The .308 chambering handles most North American big game, the 16.1 inch barrel keeps it handy in a blind or thick timber, and the full-length top rail takes any scope you'd care to mount. At 8.9 pounds it carries more like a traditional rifle than a heavy match gun.
| UPC | 840442503017 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 38A530CTNG |
| Barrel Length | 16.1" |
| Caliber/Gauge | .308 / 7.62 NATO |
| Capacity | 10 + 1 |
| Safety | Reversible Crossbolt |
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