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308 or 8.6 Blackout?
| Cartridge | Why people pick it |
|---|---|
| .308 Win / 7.62 NATO | Common, easy to find and proven for hunting and distance |
| 8.6 Blackout | A heavy .338 caliber bullet made to work from short barrels and suppressors |
Brands like CMMG, Diamondback, Daniel Defense, HK and Q, with more added as new models come in.
AR-10 Pistol FAQ
What is 8.6 Blackout?
A .338 caliber cartridge on a shortened .308-family case, built for short barrels and suppressed shooting. It needs a large-frame receiver, which is why it lives with the AR-10 pistols.
Will AR-15 parts fit an AR-10?
Grips and many triggers cross over. Upper and lower receivers, bolt carriers, handguards and magazines do not.