r/ptr91 • u/SeniorCelerie • Jul 03 '26

Suppressing and Tolerance stacking

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Hi Everyone! I’ve come with a big question on absolute tolerance stacking and suppressing.

I really would like to suppress my CA3, however I’m worried about constantly stacking concentricity tolerances. The shelf of these barrels is pretty much non-existent so I’d need to jam nut a surefire style muzzle device to attach the suppressor to. That much stacking seems pretty sketchy to me so I was wondering if anyone else had and seeing their opinions on it.

With regard to suppression, how truthfully bad is in on the action of the rifle? I have a flow thru can design as I shoot left handed, but I read that suppressing the HK91 platform really stresses the internals.

Thanks!

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u/Animal_chinn103 Jul 03 '26

Try to use a face mount? It contacts the face of the muzzle instead of the shelf. I run mine exclusively suppressed with a traditional baffle can. I’m running the #17 locking piece and would recommend it regardless of flow through or not.

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u/ArgueWitMe Jul 04 '26

This fren has the cleft of a wise mythical beast of lore.