How dirty is a SCAR 16 with suppressor?

[Hygienist]

I'm trying to decide what my next rifle will be, and thus far I'm considering new gen piston guns like the SCAR 16 and XCR-L, but also the classic DI AR15 (Noveske). I'm usually a sucker for new stuff, and I'm really enamored with the prospect of gas piston cleanliness. However, I'll be running it with a suppressor practically 24/7, and I've heard that when you attach a suppressor on, it doesn't matter if your gun is piston or DI; they'll both be dirty. I know the piston will be slightly more clean regardless, but just how much? Are we talking 50% cleaner when both are wearing suppressors?

TL;DR
SCAR 16 suppressed vs DI AR15 suppressed, how much cleaner (% wise) is the SCAR?

[Talhoffer]

I own a XCR-L and run it suppressed along with my SCARs 16 and 17, an ACR, and many AR15s by many companies including a old Noveske. The XCR is a nice rifle but the SCAR I feel is a superior rifle all the way around. Both suppress well and are well thought out, the SCAR to me is a little more refined.

Cleaner........................
with the SCAR or XCR and a suppressor it is a good bit cleaner, what you loose over a AR DI setup is all that gas being dumped into the bolt group, so the bolt group runs cleaner and cooler. You do still get a good bit of gas blowing back into the chamber and bleeding into the upper receiver but nothing on the amount you get with a DI system. You will end up with crud (blowback) in the upper, the lower, the mags, and the outside of the bolt group but I would say with the same amount of rounds run through a DI setup the gas piston rifle would be 30-50% cleaner.

[djpaintles]

You want a Scar with a Can:



That one is 101abn's, I need a couple for mine too...................dj

[kcliff907]

I don't have any complaints. i cant really compare to my AR cause it has a 10.5 barrel. I did listen while my friend shot his 16" M4 and my scar with same can and the Scar sounded more muffled to me.

[mgdive]

I run an M4-2000 on my 16 and there is of course a significant difference in fouling between suppressed and unsuppressed. Suppressed, most of the fouling is coming from the breech due to the excess backpressure. As such, I think you'll see similar fouling regardless of the platform assuming similar operating systems (short stroke piston).

For comparing the SCAR to DI guns, obviously a DI gun would be even worse. Though if I had to guess I would say that at least 75% of the fouling in the action could be attributed to the breech vs the gas tube in a suppressed DI gun.

[GULL]

I run an M4-2000 on my 16 and there is of course a significant difference in fouling between suppressed and unsuppressed. Suppressed, most of the fouling is coming from the breech due to the excess backpressure. As such, I think you'll see similar fouling regardless of the platform assuming similar operating systems (short stroke piston).

For comparing the SCAR to DI guns, obviously a DI gun would be even worse. Though if I had to guess I would say that at least 75% of the fouling in the action could be attributed to the breech vs the gas tube in a suppressed DI gun.

I am running an M4-2000 on my SCAR 16. I agree with this assessment.

[mgdive]

The best part is that people don't mess with your brass because after shooting suppressed it is so dirty it looks like it has been lying on the ground for weeks!

[Ferris2son]

Cleaner........................
with the SCAR or XCR and a suppressor it is a good bit cleaner, what you loose over a AR DI setup is all that gas being dumped into the bolt group, so the bolt group runs cleaner and cooler. You do still get a good bit of gas blowing back into the chamber and bleeding into the upper receiver but nothing on the amount you get with a DI system. You will end up with crud (blowback) in the upper, the lower, the mags, and the outside of the bolt group but I would say with the same amount of rounds run through a DI setup the gas piston rifle would be 30-50% cleaner.

Agreed. I'll add the SCAR has an adjustable gas block, which most ARs don't. Noveske has the Switchblock tho.
I think I get a lot less gas in my face with the SCAR.

[Hygienist]

Thanks for all the first hand input guys! I didn't know the SCAR gets less gas in the face than an AR15. I'd suppose that'd get annoying as hell, especially for what's supposed to be my personal "ultimate" rifle. Well, that definitely hurt the AR15's chances. Poor AR15... haha

[Ferris2son]

Thanks for all the first hand input guys! I didn't know the SCAR gets less gas in the face than an AR15. I'd suppose that'd get annoying as hell, especially for what's supposed to be my personal "ultimate" rifle. Well, that definitely hurt the AR15's chances. Poor AR15... haha

I should qualify that statement...You can get a PRI Gas Buster charging handle in the AR that reduces the gas coming from that part of the rifle. Also with an AR you can change buffer weights and springs to increase the dwell time of the bolt in battery.