QD vs Direct mount suppressor

[FLshooter]

I own a silencerco omega 300 , that I use for .308 on down,including my 6.5 Grendel. it’s a great suppressor. Easy to swap between rifles.Only problem is that you have to buy a proprietary $100 muzzle brake for each rifle order to swap it.
This past March,I purchased a Griffin GP7 Direct Mount suppressor. To my surprise ,tax stamp arrived on Friday. Quickest I ever heard!(3 1/2 mo) Considering ,I’m also waiting for a dead air rimfire suppressor, a griffin revolution 9 and a Griffin GP5 which I ordered prior to the GP7, November/December of last year.
Anyway I took the GP7 to the range yesterday and today.I shot it on my 6.5 Grendel and my AR 308. I like that it mounts directly without having to buy expensive muzzle breaks But I have to wait till it cools down a bit before removing it to install on another rifle.It is light.And IMO,is as quiet as the Silencerco at 1/2 the price.
There are pros and cons to direct mount and quick disconnect. I guess if you’re just shooting it on one rifle at a time, the direct mount is fine.
So I’m throwing this up for discussion to hear other shooter’s opinions on the subject.

[Klem]

I have found that as soon as direct thread starts to heat up it wants to come loose. The suppressor gets hot and expands and so you are having to check tight every few rounds to stop it unscrewing on you. I use a cloth or hat as an oven mit. Doesn't matter how tight you put it on initially it seems to eventually come loose. That is a disadvantage, but it can end up lighter and cheaper with no brake and clamping frills.

[mel]

I have found that as soon as direct thread starts to heat up it wants to come loose. The suppressor gets hot and expands and so you are having to check tight every few rounds to stop it unscrewing on you. I use a cloth or hat as an oven mit. Doesn't matter how tight you put it on initially it seems to eventually come loose. That is a disadvantage, but it can end up lighter and cheaper with no brake and clamping frills.

i found a crush washer fixes this issue used to drive me nuts on mine.A wave spring washer supposedly also fixes it. that being said i stll perodicaly check mine , though since using the crush washer i havent had an issue

[Klem]

since using the crush washer i havent had an issue

Do you leave it on in storage?

[FLshooter]

Klem,my silencerco came with a cover.I was looking into getting one for my Griffin GP7. But why spend up to $100 for a suppressor cover, when you can go to Harbor freight and spend $5.99 for a pair of welding gloves that work great. I already had a pair that I use for work on the truck,which is how I know they work.
Mel, I was told to get a 16 mm conical washer at Ace or True Value by acquaintances at the range.But, in a silencer shop video I saw on YouTube, they recommended not to use washers of any kind with a direct mount suppressor because it could throw off the alignment and cause baffle strikes. I’m not gonna argue the point either way. Because I have seen acquaintances at the range use them with no problem. I’m just gonna hold off on the washer for now.

[mel]

Do you leave it on in storage?

i do

[mel]

Klem,my silencerco came with a cover.I was looking into getting one for my Griffin GP7. But why spend up to $100 for a suppressor cover, when you can go to Harbor freight and spend $5.99 for a pair of welding gloves that work great. I already had a pair that I use for work on the truck,which is how I know they work.
Mel, I was told to get a 16 mm conical washer at Ace or True Value by acquaintances at the range.But, in a silencer shop video I saw on YouTube, they recommended not to use washers of any kind with a direct mount suppressor because it could throw off the alignment and cause baffle strikes. I’m not gonna argue the point either way. Because I have seen acquaintances at the range use them with no problem. I’m just gonna hold off on the washer for now.

my buddies can uses a spanner wrench on the barrel side he uses it to tighten it on the barrel with no washers or anything and it never comes loose on his he has to use the wrench when he wants to take it off

[FLshooter]

Mel, My GP7 came with a wrench.I can probably put the upper in the vice and snug it.I’ll probably only be using the suppressor on one rifle per outing anyways. So I can leave it on till I get home.

[Klem]

i do

Those things are corrosion magnets and the first thing I do is get them off the barrel, ASAP.

[mel]

Those things are corrosion magnets and the first thing I do is get them off the barrel, ASAP.

up until this last week ive been using it about every day , i take it off and clean it very often , though this last week or so i havent even had it on the gun ive gone back to my muzzle brake for a bit. ill have to keep that in mind from now on though

[am4966]

Your not supposed to use crush washers on suppressors. There is a chance for baffle strikes. Advise to anyone don't use one to time muzzle device or direct thread for your silencer.

FYI, there are more n more silencer companies offering a universal attChment so you can use one type of mounting device across different mfg. IMO a QD system is great, since you'll have a muzzle device if you don't use your suppressor or if you do simple way to attach it and take off. Like Klem said I've heard DT's coming loose. But some are being made to where if your muzzle is tapered it'll stay on nice and snug.

It's like everything some like DT n some prefer QD. It really Depends on you as a shooter.

[mel]

Your not supposed to use crush washers on suppressors. There is a chance for baffle strikes. Advise to anyone don't use one to time muzzle device or direct thread for your silencer.

FYI, there are more n more silencer companies offering a universal attChment so you can use one type of mounting device across different mfg. IMO a QD system is great, since you'll have a muzzle device if you don't use your suppressor or if you do simple way to attach it and take off. Like Klem said I've heard DT's coming loose. But some are being made to where if your muzzle is tapered it'll stay on nice and snug.

It's like everything some like DT n some prefer QD. It really Depends on you as a shooter.

new can i just put in for has a qd and the companys end caps will fit the can i already have so ill be able to use the qd on both

[FLshooter]

AM4966,It is a matter of preference.If you want to swap your suppressor from one gun to another at the range,QD is the way to go. But if you want to shoot your suppressor on one gun at a time, direct mount is the way to go. I like the direct mount because it is lighter. And in my opinion, it’s quieter.
Mel, I went shooting today after work. I put my AR upper in the vice block and I hand tightened my Griffin GP7 with the wrench that came with it. I must’ve put 100 rounds through it. It wouldn’t loosen till I put it back in the block and took it off with the wrench later.Thank you for the suggestion.

[Kswhitetails]

All cans heat up and loosen. That's part of the fun of the can. Either you have a way to clamp it tight that resists this, or you're going to need to check it. Some of the fixes I know of are pretty extreme, but it's usually just a thing to check it before every string. The good QD cans have excellent mount and clamp designs that help to mitigate this, but even with them, the suppressor should be checked to ensure it's still tight after a warm up session, and each subsequent firing string. (The same for suppressor mirage covers, don't ask how I know)

Thermal expansion is real. I learned that you don't want to heat up a QD can, transfer it to another rifle hot, and fail to remove it before it cools down. This is a recipe for cussing and discussing yourself when you're home that evening and want to clean your rifle. It'll be fun to get off after it's cooled down and clamped itself onto your MD like Atlas.

[mel]

Thermal expansion is real. I learned that you don't want to heat up a QD can, transfer it to another rifle hot, and fail to remove it before it cools down. This is a recipe for cussing and discussing yourself when you're home that evening and want to clean your rifle. It'll be fun to get off after it's cooled down and clamped itself onto your MD like Atlas.

just did this a few days ago took a can off my buddies bolt gun hot and put it on my grendel , needless to say it took the qd off with it when we went to test the next can , ended up unscrewing the endcap from the can putting it in the vise to seperate the qd and endcap

[Kswhitetails]

I got lucky on mine. I used a heat gun to re-heat the rear of the suppressor, it spun off finally. I double checked the MD to make sure it didn't turn, it felt like it had welded itself together for a while....