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Peace Keeper
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Posts posted by Matt.Cross

  1. I've got the exact same SLR GB on 3 rifles, 2 of which are new rifles, and none of which have the SCS. Have never had an issue with either leaking or LRBHO on any of those 3 rifles.

    What I'm hearing is that you don't want to believe the folks who have told you the SCS is an issue. The odds of it being a factor are far higher than the odds your gas is block causing the issue. 

    Also, as has been stated, your gas port size is well below what it needs to be for function's sake.

  2. On 6/17/2022 at 1:00 AM, dpete said:

    Ummmm, saline is salt water.  Brackish is mixed fresh and salt water like a bayou or where a river hits the ocean.

    Details my man, details.  :thumbup:

    That was the point. The downfall of the shark is that he's no good in freshwater. Beaver just holds his breath and doesn't care either way.

  3. On 6/16/2022 at 1:35 AM, 98Z5V said:

    I want to get more into the conversation, just based on this statement.  Sharks and beavers.  Saline, non-saline. Beavers vs. Sharks. This intrigues me.  I want to fight them, against each other.  I think Beavers will crush it. JMHO. 

    I believe it's a worthy topic. So maybe the saline environment is the preferable environment? Is it arguable within reason that the beaver will be impeded by the increased buoyancy in saline water? If so, is it sufficient in degree to skew the outcome?

  4. On 6/13/2022 at 11:51 PM, 98Z5V said:

    They are stubborn, for certain - once they set their little rat-brain-sized minds to something, they go all in. 

    You guys better be prepared.  I am.  I have previous combat experience against beavers.  I know what they're capable of.


    On 6/13/2022 at 11:54 PM, Cunuckgaucho said:


    Lucky for our brother in Arizona that beavers will not form an alliance with snakes but more importantly I know the beaver's kryptonite :cool: Now I'm not claiming to be a beaver whispers as much as I'd like to have that on a buisness card :lmao:

    I for one have become a studious disciple of all things pertaining to the mighty beaver. I've become acquainted with their inherent smell, the taste, what they sound like... and believe me, all that research doesn't come cheap. I'd be rich if I had all the money I've ever spent on diapers as a consequence!

  5. On 6/13/2022 at 11:41 PM, Cunuckgaucho said:

    Combine that skill set with jump qualified beavers and beavers are working their way closer to Arizona.... coincidence ?

    No coincidence. Beavers are hardcore and masters of the long game. They possess unparalleled resolve and will stop at nothing. What behavioral scientists fail to understand about beavers at their own peril, is that beavers only attack trees as a matter of practice. They continually hone their skills in preparation for the takeover of the top of the food chain. Sharks should consider themselves lucky that they are protected from beavers by their inability to inhabit non-saline water.

  6. On 6/12/2022 at 4:13 PM, Former 11H said:

    Hi Admin, I don’t see the last posting I made. Is it possible to type something and after submitting reply, have it go poof, into thin air? Or perhaps I lost it before hitting submit, or maybe I just completely forgot to hit submit reply. 😞

    All of the above is possible if not probable. Think of it as a 2nd chance to be even more eloquent and long winded..... :laffs:

  7. On 6/12/2022 at 12:29 AM, Former 11H said:

    What would you suggest for the buffer kit?

    I would echo what @98Z5Vsuggested in this post, as it's what resides in my MA-TEN and is exceptional:

    On 6/12/2022 at 1:07 AM, 98Z5V said:

    Buy the 10oz Rifle buffer that's the first thing on this page:


    This one:



    Reduces felt recoil and makes the gun operate more smoothly. Many customers use this buffer in .308 ARs to make shooting more comfortable for their spouses and youngsters. Great for use with suppressed weapons. Also popular with those shooting magnum calibers.

    I strongly recommend this buffer if any of the following conditions apply:

    • If you will be shooting with a suppressor. (Your gun will still run fine unsuppressed with standard ammunition.)
    • If you will be shooting hot handloads or very heavy bullets.
    • If you want maximum recoil reduction.


    I recommend using AR10 rifle buffer springs (#EA1095) with these buffers. OEM springs from other manufacturers or aftermarket springs may cause malfunctions. 'Flat-Wire' springs are not recommended.


    To this I will add the following: Don't bother with "hydraulic buffers" either, while they advertise softer recoil and reduced reciprocation, they are in fact nothing more than an expensive malfunction guarantee.

  8. On 6/11/2022 at 11:10 AM, Former 11H said:

    All good advise. I’d love to hear from Matt Cross too. Thanks

    Happy to chime in, been watching the thread with great interest. I think the only (possibly a non-issue, as long as you're aware of it) issue you might not have expected is that in a DI system you can expect the semi-auto function to be forfeit with subsonic ammo. Blackout is amazing in that the gas systems are built from the ground up to cycle subsonic ammunition, and the supersonic excels by virtue of always having an excess in terms of what's necessary to operate the system.

    Large ARs on the other hand, are designed and built around functionality for supersonic ammunition of varying weights and applications. This makes a transition to subsonic get really interesting, because none of the current factory gas systems are designed with cycling subsonic ammo in mind. This is true of specifications such as gas system length, gas port size, and system inertia metrics like spring strength, spring length, buffer weight, BCG mass, etc. All this becomes much more feasible in a piston system such as what you'd find in LWRC, POF, and GA Precision's large AR systems, but those are off-the-shelf spec systems not intended to be purpose modified, and generally prohibitively expensive in terms of experimenting towards success.

    All that said, if you can live with, or build towards the expectation of setting up a system to utilize both super and subsonic with no substantive change to the system, you can do so quite happily with the understanding that subsonic rounds will almost certainly need to be manually cycled. I'll discuss some potential exceptions in a minute.

    My rig is a Mega Arms MA-TEN matched set with the monolithic upper, an 18.5" mid-weight profile Titan barrel from Fulton Armory, rifle-length gas system with a .093" gas port and .936" gas block journal, and SLR Sentry adjustable gas block. An Ops Inc .30 cal 12th model suppressor/brake combo completes the muzzle package. I shoot primarily Federal Gold Medal Match 175gr through it, and when suppressed the muzzle report with supersonic ammo is fairly well on par with .22LR from a standard sporting length rifle. Many here on the forum have both shot this rifle and heard it fired and can attest to the accuracy of that description (or inaccuracy if they wish). I've also in recent times had the pleasure of running Ruag (Swiss) 200gr subsonic rounds through it, as well as varying brands of 175gr SMK subsonic, in which case as has already been stated by @98Z5V it's literally "hollywood quiet". The only caveat with subsonic is that it has to be hand-cycled, but very well worth the trade-off for me.

    I'll wrap up with my thoughts on what would give you your best chances of successfully cycling subsonic in a large AR: 

    #1. A standard length barrel with a short gas system. The idea here is to get as much gas into the system as possible before the bullet exits the muzzle.

    #2. The largest possible gas port, I think .125" is as large as a gas block will permit.

    #3. As little weight/spring pressure as possible in the reciprocating mass of recoil system and BCG. It's gonna suck for supersonic, but that's the price of cycling subsonic.


    There ya have it, my thoughts on the matter! Welcome to the forum, and looking forward to learning from what your build ends up teaching us all!

  9. On 6/9/2022 at 11:14 PM, 98Z5V said:


    I'll fix that as soon as I get back...   Remember...  you asked for that...   :laffs::banana:

    I'm pretty sure it's too late, but don't let that slow you down any... :banana:

  10. On 5/28/2022 at 4:27 PM, JBMatt said:

    Well boys, I gotta give it to the old man, Tom-ass. @98Z5V This fukkin dickhead was shooting absolutely unconscious today. He was en fuego! This shitbag cleaned the first 4 of 5 stages with mostly one shot hits. Probably only missed 4-6 shots in the first 40 targets. Maybe he was just trying to conserve ammo, but it was absolutely impressive and a joy to watch to say the least. An absolute machine and something to take note of and aspire to. I gotta say, I thought today was gonna be his day to be a hero. But alas, that damn Coyote eluded his cross hairs... Timed out with 2 targets left on the last stage of an otherwise perfect score. Oh no, you suck again! :laffs:

    Damn fine shooting today, buddy. You can be my wingman anytime. 😉


    We both ended up with 46/48 on the day.  I missed 2 on our 3rd stage and @98Z5V just couldn't seem to get her pants off at the end of the dance...  :banana:


    Sounds like you both gave 'em hell! I'm going to have to stop giving him free advice or he'll become unstoppable....

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