Does anyone know of an off the shelf way to use a tri lug adapter on the new FTN.5 Rifle cans? If not, is it as simple as modifying the thread adapter insert STL to take the threads of an off the shelf tri-lug adapter?
Never used CAD and this might be the project to get me to learn. I really want a white monster can hanging off the end of an MP5
Funny you should ask… I have had several requests so I am making a new threaded insert to accept the KVP trilug.
Would be compatible with all current FTN.5 models that accept the threaded insert, but the one that would be best is the FTN 4.5 PCC
Would you like to test fit it? Do you happen to have the KVP Trilug?
Maybe you would consider doing something simpler? Pembie000industries made a trilug can that only requires a cut AR buffer spring and a handful of M3 screws/nuts, (sailing in Odysee under name “Tri-dent”) every other part 3d printed. If you can incorporate that principle, you get the same functionality and QD benefits of a trilug, without requiring someone to buy a brand specific 100 dollar plus part.
Edit: forgot this place Isn’t censored, here is the link to the file, if you want to/ are willing to seriously consider this option: https://odysee.com/@pembie000industries:1/TRI-dent:0
I’ll take a look at that again, I remember when that came out but I never printed it.
Have you printed it? If so, is the lockup very secure? The issue with trilug is always that it can become looser with time and lose concentricity. That can happen even with metal versions so I hadn’t trusted printed ones
I have not printed one, but from what I’ve heard it seems to garner pretty positive feedback. In my opinion, the way to better mitigate the loss of concentricity is to oversize the exit hole slightly larger than you normally would to compensate for this. I don’t believe the all printed system the trident offers is going to be longer lasting than a metal inserted thread adapter, but it does offer a cheaper and easier to make alternative that gives you the QD option. I believe this system would pair great with the aforementioned FTN 4.5 PCC.
I will take another look at this and print one at some point and see if it is viable, thanks for bringing it to my attention
Would you like to test fit it?
I will volunteer to test fit, but I suspect someone else might beat me to it. I have not filled out a Form 1 for this build and I have not printed anything in nylon yet. I will get Form 1s filed ASAP and will dial in my printer for nylon over the weekend.
Do you happen to have the KVP Trilug?
I do not currently have one. Per the instructions for the previous models that used the KVP trilug mount a KVP 1" coupler is also required. Will this be necessary on the threaded insert on the FTN.5? I’ll get the stuff on order as soon as Form 1 is approved
the one that would be best is the FTN 4.5 PCC
Best from what perspective? I was planning to build a white monster edition 36 cal flow thru rifle can first mainly because it looks cool. I assumed it would have very good sound performance and low back pressure on an MP5 despite it being a rifle can but maybe this was a bad assumption.
I did not consider the FTN4.5 PCC for my first build as there is not a flow thru version and I don’t like the gas to the face from high back pressure cans. If the FTN4.5 PCC has the best sound signature for this application I will pivot to that for my first build.
Great question. Coupler is NOT required for this new one. It’ll be pretty similar to the KAK, in that you will epoxy it into the insert.
Also good follow up question. The FTN 4.5 PCC is probably the quietest PCC can. The 19.2 oz White Monster versions will of course be functional for 9mm, but it is really optimized for rifle calibers. Because rifle gas has very high velocity, it benefits from more spacing between baffles and therefore less baffles.
You would get benefits from flow-through, and of course the meme potential is off the charts.
But if you wanted the absolute quietest PCC suppressor, it would be the 4.5 PCC. It has more baffles, and they are the new K baffles that have the extra ribbing, and ribbing on the walls for max turbulence
Hope this helps, but now that I have typed this up, perhaps this is more confusing, feel free to ask more questions if i made it more complicated than it needs to be
The explanation of the rifle cans being optimized for higher velocity than the PCC cans makes sense to me. Is the baffle construction similar between the pistol and PCC versions? Other than the pistol using a Nielson device and having an oblong bore for the slight tilt potential
Since we’re in the $0 tax stamp era, I will probably print a FTN 4.5 PCC, a FTN 5 Flow PCC, and a 19.2 rifle all in 9mm. Probably makes sense to make all 3 with cheap thread adapters and no epoxy on the insert. Then make an insert with a tri lug for my favorite since it’s by far the most expensive part.
The baffle construction is somewhat similar, in the sense that they have ribbing and slanted K baffles, although I had to do a redesign from scratch to make the off axis baffle
Sounds like a plan! Hopefully by the time you get around to it, we will have figured out the dimensions of the trilug. I sent the files to 2 other people to testfit, hadnt heard back yet
i have been trying to design a 3 lug mount to work with the ftn5. if you still need somwone to test fit, let me know. got a handfull of form 1’s back and im ready to start building.
