- Thread starter DMack
- Start date
Re: PWS MK107 Diablo
IBZ'd mine in yesterday, I have an eotech xps. I have a full size 5.56 Brevis enroute also. Looking forward to experiencing the differences between the two. I'm still waiting for the black lower and the FDE upper. So for now, its the FDE lower and black upper until the matches show up
Lower right is original sighting from the 50, lower left is 3 rds from bench at 50 once I had it zeroed. Center is two 5 rd groups from 100. Upper left is standing from the 7 yd. All with Federal M855.
IBZ'd mine in yesterday, I have an eotech xps. I have a full size 5.56 Brevis enroute also. Looking forward to experiencing the differences between the two. I'm still waiting for the black lower and the FDE upper. So for now, its the FDE lower and black upper until the matches show up
Lower right is original sighting from the 50, lower left is 3 rds from bench at 50 once I had it zeroed. Center is two 5 rd groups from 100. Upper left is standing from the 7 yd. All with Federal M855.
Re: PWS MK107 Diablo
Finally picked up a Mk107 Diablo can't wait to take it out and run it. Thanks for the review DMack.
Finally picked up a Mk107 Diablo can't wait to take it out and run it. Thanks for the review DMack.
Re: PWS MK107 Diablo
We need an update on the brevis. How about it? Had a chance to try it yet?
We need an update on the brevis. How about it? Had a chance to try it yet?
Re: PWS MK107 Diablo
Looks like it might be so much fun to shoot he hasn't come off the range to write a post!
Looks like it might be so much fun to shoot he hasn't come off the range to write a post!
Re: PWS MK107 Diablo
Update:
I apologize... been VERY busy at work. I have two of my Full Time Instructors leaving for deployment, and I have had to cover down on their classes.
So, to date... I have about 1500 rounds through the MK107 since adding the Brevis Suppressor. I had some cycling issues at first, running the Spikes Tactical ST-2 buffer. I have a standard carbine buffer spring, and the PWS buffer tube, but used the ST-2 buffer, thinking that it would be sufficient.
I could fire eight or nine rounds, then it would leave the round in the chamber... effectively stripping the extractor off of the case. This meant excessive carrier speed, so I added a 9mm buffer, effectively the same as an H3 buffer I suppose.
Now, the Diablo runs flawlessly.
I spoke with Todd at PWS... he is running an H3 buffer in his Diablo / Brevis combo, with zero issues.
Of note... the suppressor works. I can fire it with zero hearing protection, and my ears do not "ring" at all. It's not the quietest package, but it is a compact suppressor, on a 7" barrel. I was not expecting "Holywood" quiet... I just wanted functionality.
I have not run it fully auto / select fire with the can on it yet, but will soon.
It digests .223 American Eagle, M855 5.56 NATO, 69 Grain Winchester Ranger, and 77 grain OTM with the suppressor and 9mm buffer, with zero issues.
The rifle does have a wee bit of a "kick" to it, I attribute it to being so light, in conjunction with the heavy buffer. Not terrible, just noticeable.
Chrono testing will come soon. I have not had time.
So far, two thumbs up!!!
Update:
I apologize... been VERY busy at work. I have two of my Full Time Instructors leaving for deployment, and I have had to cover down on their classes.
So, to date... I have about 1500 rounds through the MK107 since adding the Brevis Suppressor. I had some cycling issues at first, running the Spikes Tactical ST-2 buffer. I have a standard carbine buffer spring, and the PWS buffer tube, but used the ST-2 buffer, thinking that it would be sufficient.
I could fire eight or nine rounds, then it would leave the round in the chamber... effectively stripping the extractor off of the case. This meant excessive carrier speed, so I added a 9mm buffer, effectively the same as an H3 buffer I suppose.
Now, the Diablo runs flawlessly.
I spoke with Todd at PWS... he is running an H3 buffer in his Diablo / Brevis combo, with zero issues.
Of note... the suppressor works. I can fire it with zero hearing protection, and my ears do not "ring" at all. It's not the quietest package, but it is a compact suppressor, on a 7" barrel. I was not expecting "Holywood" quiet... I just wanted functionality.
I have not run it fully auto / select fire with the can on it yet, but will soon.
It digests .223 American Eagle, M855 5.56 NATO, 69 Grain Winchester Ranger, and 77 grain OTM with the suppressor and 9mm buffer, with zero issues.
The rifle does have a wee bit of a "kick" to it, I attribute it to being so light, in conjunction with the heavy buffer. Not terrible, just noticeable.
Chrono testing will come soon. I have not had time.
So far, two thumbs up!!!
Re: PWS MK107 Diablo
Had the Diablo out and I did a few candid videos...
http://www.youtube.com/watch?v=lgXWGd3Y50o&feature=youtu.be
Had the Diablo out and I did a few candid videos...
http://www.youtube.com/watch?v=lgXWGd3Y50o&feature=youtu.be
Re: PWS MK107 Diablo
Here I am, shooting MY MK107... prone, with 55 grain American Eagle... on steel. This little gun runs well.
http://www.youtube.com/watch?v=CWcsKaWuOmw&feature=youtu.be
Here I am, shooting MY MK107... prone, with 55 grain American Eagle... on steel. This little gun runs well.
http://www.youtube.com/watch?v=CWcsKaWuOmw&feature=youtu.be
Re: PWS MK107 Diablo
tag
tag
Re: PWS MK107 Diablo
Ok, I ran some Chrono numbers with the MK107 using a few different types of available commercial ammo. Suppressed, and Unsuppressed. Here are the results:
PWS MK107 “Diablo” with Brevis Delta P Compact 5.56 Suppressor
55 Grain FMJ American Eagle: Average – 2247 FPS
SUPPRESSED
2282 FPS
2285 FPS
2255 FPS
2177 FPS
2238 FPS
62 Grain FMJ Remington CTFB: Average – 2097 FPS
SUPPRESSED
2239 FPS
2056 FPS
2011 FPS
2078 FPS
2101 FPS
62 Grain M855 NATO 5.56 “Green Tip”: Average – 2240 FPS
SUPPRESSED
2200 FPS
2229 FPS
2282 FPS
2230 FPS
2262 FPS
69 Grain Federal TRU (SMK): Average – 1983 FPS
SUPPRESSED
2064 FPS
1961 FPS
2010 FPS
1952 FPS
1931 FPS
MK107 with 55 Grain American Eagle .223 – Average 2369 FPS
UNSUPPRESSED
2358 FPS
2401 FPS
2394 FPS
2312 FPS
2383 FPS
MK107 with M855 62 Grain Green Tip 5.56 – Average 2369 FPS
UNSUPPRESSED
2373 FPS
2397 FPS
2379 FPS
2386 FPS
2314 FPS
MK107 with 69 Grain Federal TRU in .223 – Average 1983 FPS
UNSUPPRESSED
1995 FPS
1969 FPS
2001 FPS
1953 FPS
2000 FPS
Ok, I ran some Chrono numbers with the MK107 using a few different types of available commercial ammo. Suppressed, and Unsuppressed. Here are the results:
PWS MK107 “Diablo” with Brevis Delta P Compact 5.56 Suppressor
55 Grain FMJ American Eagle: Average – 2247 FPS
SUPPRESSED
2282 FPS
2285 FPS
2255 FPS
2177 FPS
2238 FPS
62 Grain FMJ Remington CTFB: Average – 2097 FPS
SUPPRESSED
2239 FPS
2056 FPS
2011 FPS
2078 FPS
2101 FPS
62 Grain M855 NATO 5.56 “Green Tip”: Average – 2240 FPS
SUPPRESSED
2200 FPS
2229 FPS
2282 FPS
2230 FPS
2262 FPS
69 Grain Federal TRU (SMK): Average – 1983 FPS
SUPPRESSED
2064 FPS
1961 FPS
2010 FPS
1952 FPS
1931 FPS
MK107 with 55 Grain American Eagle .223 – Average 2369 FPS
UNSUPPRESSED
2358 FPS
2401 FPS
2394 FPS
2312 FPS
2383 FPS
MK107 with M855 62 Grain Green Tip 5.56 – Average 2369 FPS
UNSUPPRESSED
2373 FPS
2397 FPS
2379 FPS
2386 FPS
2314 FPS
MK107 with 69 Grain Federal TRU in .223 – Average 1983 FPS
UNSUPPRESSED
1995 FPS
1969 FPS
2001 FPS
1953 FPS
2000 FPS
Re: PWS MK107 Diablo
Update:
I'm having some cycling issues with the Brevis Compact / MK107 combo... I'm working with PWS on a fix. They are having issues with the "Dead Blow" Buffer in the Enhanced Buffer Tube... this is the direct cause. I will write more on this soon...
Update:
I'm having some cycling issues with the Brevis Compact / MK107 combo... I'm working with PWS on a fix. They are having issues with the "Dead Blow" Buffer in the Enhanced Buffer Tube... this is the direct cause. I will write more on this soon...
Re: PWS MK107 Diablo
Still no fix?
Still no fix?
Re: PWS MK107 Diablo
Great choice of can
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: mcharb007</div><div class="ubbcode-body">I've been running the mk107 in 7.62x39. I had an AAC 51T full brake installed to accept the AAC 762SD. I haven't had the rifle for too long and probably have about 1000 rounds through it, mostly suppressed. I can't really comment on accuracy since I have not mounted an optic yet. But as far as reliability, I have had zero malfunctions shooting either suppressed or unsuppressed. The weapon cycles flawlessly with the suppressor. With the full brake, the rifle is extremely loud and shoots small fireballs out the side of the brake, but is very controllable. With the suppressor on, the weapon is scary quiet. Haven't had a chance to fire subsonic ammo yet, but look forward to it. The only complaint that I have so far is that the top front section of rail, that the front buis sits on, extends far enough forward to make taking off the suppressor a chore. It interferes with pressing the quick detach lever on the suppressor.
</div></div>
Great choice of can
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: mcharb007</div><div class="ubbcode-body">I've been running the mk107 in 7.62x39. I had an AAC 51T full brake installed to accept the AAC 762SD. I haven't had the rifle for too long and probably have about 1000 rounds through it, mostly suppressed. I can't really comment on accuracy since I have not mounted an optic yet. But as far as reliability, I have had zero malfunctions shooting either suppressed or unsuppressed. The weapon cycles flawlessly with the suppressor. With the full brake, the rifle is extremely loud and shoots small fireballs out the side of the brake, but is very controllable. With the suppressor on, the weapon is scary quiet. Haven't had a chance to fire subsonic ammo yet, but look forward to it. The only complaint that I have so far is that the top front section of rail, that the front buis sits on, extends far enough forward to make taking off the suppressor a chore. It interferes with pressing the quick detach lever on the suppressor.
Re: PWS MK107 Diablo
Any solution yet to the MK107 and Brevis Suppressor cycling issue?
Any solution yet to the MK107 and Brevis Suppressor cycling issue?
Re: PWS MK107 Diablo
I've used my diablo for hog control, equipped with a DBAL D2, YHM 223 suppressor shooting LC m855 62 gr penetrators. Had my 4x raptor on it for a short time but all my buddys kept making fun. Haha. Hog ambush in an open field with a diablo is the most fun one can have with cloths on! The little 556 obviously is not as effective as my 308 or blackout but it works. I would guess so far the diablo has taken over 40 hogs from 40#s up to 200#s +/-. Its also great for kids, my 9 yr old can handle it very well and took 3 hogs on his first outing using the diablo, DBAL and pvs 14. I'm waiting on my brevis can to complete the package and after watching DMacks videos I'm excited as ever! DMack, I'm very grateful for you taking your time to write this eval, very informative and much appreciated!!
I've used my diablo for hog control, equipped with a DBAL D2, YHM 223 suppressor shooting LC m855 62 gr penetrators. Had my 4x raptor on it for a short time but all my buddys kept making fun. Haha. Hog ambush in an open field with a diablo is the most fun one can have with cloths on! The little 556 obviously is not as effective as my 308 or blackout but it works. I would guess so far the diablo has taken over 40 hogs from 40#s up to 200#s +/-. Its also great for kids, my 9 yr old can handle it very well and took 3 hogs on his first outing using the diablo, DBAL and pvs 14. I'm waiting on my brevis can to complete the package and after watching DMacks videos I'm excited as ever! DMack, I'm very grateful for you taking your time to write this eval, very informative and much appreciated!!
Re: PWS MK107 Diablo
Thanks for taking the time to do these helpful reviews.
I was all set on getting an MK107 5.56 (I see mention of a 7.62 version but I don't see it on the PWS site) with a Brevis Can, but I see that Dmack is having cycling issues with this setup and I see others who are not having issues.
So I'm not sure now if this can be considered a reliable go to configuration.
looking forward to an update.
Thanks again.
Thanks for taking the time to do these helpful reviews.
I was all set on getting an MK107 5.56 (I see mention of a 7.62 version but I don't see it on the PWS site) with a Brevis Can, but I see that Dmack is having cycling issues with this setup and I see others who are not having issues.
So I'm not sure now if this can be considered a reliable go to configuration.
looking forward to an update.
Thanks again.
never heard of PWS until shotshow 2013 and i'm very excited, especially now after reading about it here! kind of sad i missed out on Gen 1 PWS MK's back in 2009... i'm looking for the MK109 300blk rifle, anyone know where i could get one? i pray to God they are still floating around NIB! thanks.
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