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Hi all,

I have MPX and an Advanced Armament Tirant 9S suppressor. I beleive the Sig MPX barrel treading is 13.5x1. Should I get a 13.5x1 LH piston and a fixed barrel spacer or go with a 3 lug mount along with an AAC Tirant Triad adapter?
Or, would you go an entirely different route?
If you suggest 3 lug, can you please recommend where to purchase the mount and adapter from? AAC is out of stock on the Tirant Triad adapter and so far, I have not found any 13.5x1 LH 3 lug mounts.

Also, I know I already asked this in another thread, but have not had any reaponses thus far. Will a B.A.D. Lever work on the MPX?

Thanks,
SB
 

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I'd personally go 3-lug (that's what I'll eventually do). There was a rumor TROS was going to do a 13.5x1 LH 3-lug adapter (not on their site, maybe try calling). As to the AAC adapter, can't help you there.
 
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Griffin Armament 9mm Revolution is quite then the AAC, has plenty of mounting options, and can be configured into a K can and is still hearing safe with 147gr w/o any gel or water in the K configuration. 2 cans for price of one.
 

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I would definitely go with the 13.5 LH piston instead of a 3 lug. There's really no use in spending more money on a 3 lug if there is no reason too. It's not like you are installing underneath a hand guard or something.

Also, a TiRant 9S is more suited for a sub compact 9mm pistol instead of a carbine anyway. You would already have the required piston.
 
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