I've been keeping up with the Dual lok series of suppressors and have noticed that the following changes have been made or are already implemented:

DL7: Now has the PSR stack which means it has gone from 6 to 7 baffles and grown from 7" to 7.5". I'm sure the weight has gone up a hair as well but am unsure of the exact amount. No change to baffle stack

DL5: Has reduced the number of baffles from 5 to 4 yet will maintain it's length of 6.5" No change to baffle stack

HRT 556: Has undergone a complete baffle stack change, a new flash hider cap and grown .3 inches to 6.3" and gained 2oz weighing in at 16.5oz

HRT 762: HAS NOT UNDERGONE ANY CHANGES

the questions based on this are:

1) can you confirm my information is correct.
2) can you give us insight as to what/how these changes have improved each model
3) are they changes in the works for the HRT726, and in none are, why is it "perfect" as is

I'm sorry I wasnt hip to Griffin sooner, but I am now and eager to learn as much as possible about the product lines especilay the dual lok series. Thank in advance for any knowledge bombs you may drop.

The PSRG2 stack has two baffles that are different (one replaced, one additional) so the stack is different in the newer DL7, and the flash suppression is better, and the new flash suppressor cap is also in the can now so that's another update that happened simultaneously.  This means it sounds better, has less flash, and is 1/2" longer.  

The DL5 got a G2 stack which is a different style and also is in the process of / next production run shortly will be getting the newer flash hider caps.  This modification dropped ear sound ~3-4DB, and dropped flash about 75% before getting to the newer flash hider cap which I haven't shot yet.  The can handles OTB muzzle devices especially the flash suppressor better.

The HRT 556 was a durability increase from durable to kind of stupidly durable.  It was for a NATO SF testing standard.  We made a couple sales of these cans to the US Air Force.  

The HRT 762 is getting an upgraded flash suppressor but you are otherwise correct.  The can is quite quiet, and not long, albeit perhaps heavy.  There is no current immediate plan to change it.

How the hell could the DL5 sound any better? lol.  The can is already a beast.

Now I need a second one.  Are those changes live yet or soon to be live?

I’ll add a question as well.  I have a DL7 from last October, guessing it’s an original l, is there an option to upgrade it to the new stack/endcap?  Love it as is, but if it can better…

And also curious when the newest DL5 would be viable or how to make sure when ordering, I’m getting the newest(I’d be ordering direct through you guys/griffin/ capital armory fulfillment)

Thanks @Green0

I think it may be a month or two to sell to a point where the DL5 changes hit.  I would hold off on a second as we are developing some other stuff hopefully before year end 3 models in the 5.56 space minimum.

I would want to see one of the models particularly before making another purchase decision if it were me.  We are trying to develop a low cyclic increase can that can be quiet, but I don’t know how that will go yet.

As far as upgrades, they are possible but not advertised right now.  Currently we are just doing service work on damaged units that rarely happen.

It depends on the definition of better.  Any suppressor can be more quiet, can be lower flash etc, but generally speaking more length and weight are required to get there.

The new DL7 has one more baffle, but two are different.  We found that dropped FRP, and that shifted tone a little bit, and cut flash, so we felt it was a solid improvement and worth one ounce and half an inch.

I think one was tested at the TBAC silencer summit.  So you can take a look at that to see how it did.  


The caveat there is thats a 1m suppressor muzzle test with a floating right ear mic that is not where either of a right handed shooters ears are, so its a set of locations we abandoned after seeing a study from university of Florida acoustic scientists delivering an argument to leave the mic at the unsuppressed muzzle location to measure change at the more relevant identical location, and we measure at the shooter’s actual ear positions like companies in Europe and HBK intended the pulse system to do (they include a goofy mic mount headband that we took their mounts and repositioned them on ear muffs).  We feel end users want to know what is happening at their ears.

Also the leading cans need to be considered with length, volume, and weight in mind.  A lot of the companies have tremendously huge cans in the open industry testing. If a can is 2 inches longer and 3DB more quiet that may not be worth the length in practical applications.

Thanks for the reply.  Glad you responded about the DL5, I’ll wait and see what’s coming, my HRT will hold me over til then

About the new stack in the DL7, I’m guessing by saying not advertised/only doing service work, the upgraded stack swap is not an option right now?  Totally understandable with how backlogged the entire market is right now, I’m definitely down for the upgrade, the extra weight and length don’t mean anything to me, running on an already small 300blk or heavy bolt gun, don’t notice the changes at all.  If it is an option, please let me know how to go about getting it rolling, thanks again @Green0

You could request it through CS, they could perhaps bill it and schedule it in at a time when we have the parts in stock and run it with a warranty batch, but it isn't advertised and probably should not be because we are struggling to keep many items in stock and the re-work slows down production and doesn't help us make customers happy with items they want in stock.

I am really happy that I bought my DL5 and HRT556 cans. I own a lot of cans and these two have caused me to leave most of my other cans in my safe when I head out to shoot. Some of those cans that get very little use are Reddit/Guntuber favorites that I, admittedly, fell for their hype only to find their performance does not align with their hype, nowhere close.

I am also excited to see what you and your team have planned. You guys put out really great products!

Thanks I really appreciate it.

The new stacked DL7s are out there already if that's what you were asking. I received mine a few weeks ago.

@WVUSIG

Between the DL5 and the HRT556, which is your overall favorite and why?

It really depends on what I am doing. If I am just plinking steel, it's the DL5. If I am at my home range and moving and shooting a lot, or running FA, it's the HRT. I know the DL5 can take the cadence of FA but I don't want to abuse the can as I really like it a lot. The HRT seems to eat up FA fire and it's built like a tank, so I know the abuse really is of no issue to it.

Austin has mentioned before the abuse that a Euro SF team put through the HRT and it is wildly impressive. I could never, ever be that abusive, so I know that whatever I personally throw at the HRT, it will take it and ask for more.

I guess the DL5 is one of those cans that does everything really well while the HRT can is one of those cans that you pick up when you have had a bad day and want to blow off some steam with some FA fire or extended quick-cadence SA fire.

You really cannot go wrong with either.

Thanks for the feedback.
I'm looking for a companion to the DL7 I have and was undecided, even more so now that there are some new cans on the horizon.

decisions, decisions.............................

Same.  I've bought 12 cans since 2018.  Amongst the guys that I train with, we have access to something like 20 different cans.  Not exactly a ton but enough to get a decent idea as far as what I like and what I don't like.

I haven't really felt like i've gotten my moneys worth on a lot of these purchases as I always ended up compromising in some way shape or form.  Hub is cool and all but it doesn't really matter to me as I get more cans and dedicate them to particular firearms.  I always wanted a hard use 5.56 can but I never wanted a weight penalty.  I also wanted a one piece fixed mount.  Up until the DL5, that can didn't really exist in my eyes.  To me, the RC2 is a wonderful can but it's old technology, it's not a lower backpressure can and it's heavy as all hell.

For the price point, the DL5 punches way the hell above it's weight.  I absolutely cannot wait to see what improvements the can gets and what else you guys have in store.  I am going to hold off on buying some other cans from other brands now just to wait and see.

I'm dangerously bordering on fanboy territory here....

@Green0

Regarding the cans that are in the way
A) are all dual lok
B) are all 556 cans

If so I may just grab the HRT762 to tide me over as you mentioned in another thread that the only revision planned for the HRT762 is the end cap.

That makes sense the HRT762 is a nice performing can.

Ha, I have no issue with anyone calling me a Griffin fanboy. I have said it before, Griffin does not get nearly the love that they deserve.

I don't really mind the weight as you get used to it quickly and you will find that the more you run a heavier setup, the stronger you get in your mechanics in manipulating the gun. At least for me that was the case. My priorities now are HUB compatability or Dual-Lok (I converted 12 of my 18 cans from Plan B to Dual-Lok along with 23 hosts to DL muzzle devices), sound suppression, and flash suppression as I am getting more and more into shooting under NODs.

I have a few hosts that aren't Dual-Lok including my HK SP5 and SP5K-PDW as I run tri lugs for those cans. I also have a gun that I keep a Huxwrx muzzle device on for the two Flow 556Ks that I purchased. I bought these based on the hype, including from some friends who I trusted, and was sadly disappointed in their performance. So they sit in my safe and my rotation is heavy on the DL5, HRT556, PTR Vent 3, Velos LBP, and the LPM Torch. All are incredible cans in their own way. I have a CAT WB 718 HUB and a CAT MOB HUB on the way, so excited to try those out. I'll eventually purchase an Explorr as a buddy of mine has one and it is really, really nice sounding.

So just to make sure I'm understanding, if you order a Dual Lok 7 off the Griffin website today, there is a 100% chance you will get the newer version?

Thanks

I believe so.  We don’t update web specs until that unit is selling.