r/canadaguns • u/SpinachStunning5547 • May 01 '26

Application / Regulation advice Question about the henry supreme

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I know ARs are usually easily convertible from 5.56 to .300blk but would this be. I will probably buy a 5.56 because of ammo prices but it would be nice to be able to hunt deer with it too. I see 450$ .300blk barrels that would be a nice combo gun. Can someone confirm or disprove my theory please?

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u/nexthigherassy May 01 '26

My understanding of the rifle is that the barrel on these guns attaches to the receiver essentially the same as an AR15 barrel. They just use a proprietary barrel nut. Red Deer shooting centre is selling Henry supreme rifles that they have swapped the barrels on. Their manufacturing company, Shield Rifle works, developed a method of removing the barrel. They then installed an AR15 barrel without a gas hole onto it and secured it using a BCM kmr handguard barrel nut. Once you have the factory barrel removed I guess its the same as removing the barrel from any AR15 at that point so swapping to . 300 blackout should be a simple case of swapping the barrel as there's no gas system and .300 blackout uses the same bolt as 5.56.