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Discussion Starter #1
I've seen videos of the TPM 8" suppressors runnnes FA without any issues but some say a lot of mods had to be made to the BCG of the MP5 SD itself to make it work and even then it was really not reliable either

Does anyone have any experience or heard any verifiable successes with that can?

I have asked the company directly a few times and they would never give a clear answer, TPM was always really dodgy and doesn't seem like a company I would trust

https://www.tpmoutfitters.com/product-page/tpm-shorty-sd-suppressor
 

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I can confirm my TPM 8" suppressor functions perfectly in Feuerstoss mode. My stamp for the TPM was approved two months ago and shooting nearly 1000 rounds in both semi and semi and full auto, it has been perfect, no issues at all.
 

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I've seen videos of the TPM 8" suppressors runnnes FA without any issues but some say a lot of mods had to be made to the BCG of the MP5 SD itself to make it work and even then it was really not reliable either

Does anyone have any experience or heard any verifiable successes with that can?

I have asked the company directly a few times and they would never give a clear answer, TPM was always really dodgy and doesn't seem like a company I would trust

https://www.tpmoutfitters.com/product-page/tpm-shorty-sd-suppressor
I have one of these in NFA jail. I should take mine out for a conjugal spin this weekend. I will report back if I make it out with the can.
 

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Discussion Starter #4
@1-504PIR what type of ammo and any mods to the gun? Bcg?

Is the 8" baffles the same as the 10" in terms of design, not quantity?
 

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@1-504PIR what type of ammo and any mods to the gun? Bcg?

Is the 8" baffles the same as the 10" in terms of design, not quantity?
I have shot Federal 124gr Lawman, Aguila 124gr, Winchester 124gr, S&B 124gr and 115gr, Fiocchi 115gr, CCI Speer 115gr, and some older GECO 124 gr. The GECO and Sellier & Bellot were the most accurate, although the other brands were close in accuracy.
PCS gun with H&K factory BCG. No mods or tweaking at all. Functions great with both the semi auto trigger pack and with my Qualified sear trigger pack.
I believe the 8" is basically the same as the 10" in design and probably watched the same videos as you before making my decision to by the TPM. I had people commenting at the range at how quiet the TPM was. I have a RDTS silencer in jail right now. I want a short silencer (lightweight) and a standard length (heavy) silencer for my SD. I have heard nothing but great things about the RDTS. I'm looking forward to doing a comparison between the two in the near future.
No regrets buying the TPM.
 

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Discussion Starter #6
From what I heard from RTDS, you do need the 120 locking piece and possibly a lighter recoil spring for their shorty.

I didn't hear back from TPM and my F1 from ATF already got approved
 
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