MikeRush
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Posts posted by MikeRush
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This is hands down my favorite barrel configuration that I have tried! Absolutely worth the money if you like light guns.
I have mine set up with a BCM KMR Alpha handguard, which makes the front end feel nearly weightless. It is supremely easy to drive.
Anecdotally, I installed the ULW barrel and took it straight to a 6 stage club match without even rezeroing it. I took 1st out of 23 PCC shooters, and 3rd out of 128 overall. The handling is fantastic but the recoil is surprisingly low considering the weight reduction vs my old setup.
I believe the shorter barrel will let me get away with an even lighter bolt/buffer combo. Testing that theory is on hold because my red dot took a swan dive onto concrete, but I am excited to get some more rounds down range with it soon.
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1 hour ago, longbeard said:
I get this, and it certainly makes sense.
But the question is. What is the difference between this lower
https://newfrontierarmory.com/shop/c-9-stripped-billet-lower-receiver-glock-style-mags/
and
this lower
When buying just a lower. Why would someone pick the QC over the NFA?
I'll bite, as I purchased a QC10 over the NFA last year.
As mentioned, BHO is in the lower. As I live in CA I had been anticipating PCC 10 (which fortunately is on hold, at the moment) and efficient LRBHO seemed like a nice feature.
If you are buying an upper and lower, the price difference between the NFA lower and upper with proprietary LRBHO and a QC10 lower/Anderson Sport upper is negligible. Plus I can swap uppers with a Colt based setup and use whatever upper I feel like using without losing that feature. QC10 has sales frequently which help offset some of the difference.
Anecdotally it seems that the QC10 positions mags in a slightly better position to feed, as well. I have seen lots of issues with the NFA lowers and extensions. I have seen fewer issues with the QC10 lower, although I have also seen fewer QC10 lowers at matches so it is hard to say that means anything.
That said, I prefer the plastic mag catch on the NFA, as it doesn't beat up the notch in the mags the way the QC10 catch does.
If you don't care about the features then I agree, why bother with the QC10? It is significantly more expensive. I happen to feel that the features make it a better mousetrap. Not everybody will.
If I had to build one on a tight budget and didn't care about LRBHO I wouldn't hesitate to use an NFA or a lower they sell through somebody else. It is much more important, in my opinion, to put the money into a quality barrel and bolt.
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On 5/25/2017 at 7:21 AM, rowdyb said:
OK, I'm not trying to fall into a trap here but I do have a question......
For guys like Max or Vogel or others at the top who shoot Lim and Prod and are some of the guys setting our HHF for classifiers if .40 major is harder to shoot well than 9 minor then why are the times required for equivalent percent scores of a classifier faster in Lim than Prod?
For those with both a Prod and Lim set up are you really slower with a gun shooting major? I'm no super star but for me, my times and hits are almost identical between my Prod gun and my Lim gun. The difference in matches comes down to the effect of capacity and how it effects shooting a stage.
Is it harder to shoot a Bill drill, 4 aces, El Pres or any other standard drill with a gun shooting major than minor? It doesn't seem like it, and those guys are often faster.
Power factor does have a bearing on your score, without doubt. But does it really effect your shooting and stage times to the point that equals the point differential it currently enjoys?
Rowdy, for your first point, take a look at HHFs for the 99s. I believe those were before Production division existed, and were obtained by taking Limited HHFs and multiplying them by an arbitrary percent (looks like 95%). Spot checking some of the 13s (most recent) the differential is much, much closer in recent years as Prod guns have developed into DA/SA L10 Minor guns and the talent pool has deepened. For example, 13-07 has a 10.81 HHF for Limited, and a 10.75 HHF in Prod, less than one percent difference. If you look at some of the classifier-ish stages from major matches (Stage 1 of 2014 Nats comes to mind) the top Prod shooter will have a higher HF than the top Limited shooter, or be very, very close to it.
As far as my personal experience goes, I don't really shoot a Prod setup, but I spent several months shooting Limited Minor with my standard 40 cal Limited gun a while back. I actually made Master in Limited shooting Minor. For me, it was noticeably easier shooting As with lighter loads, as a lot of the AC, AC, ACs turned into 6As. I was able to get 2As without putting nearly as much emphasis on my grip, and shooting in awkward positions was noticeably easier leaving me free to focus on sight alignment and trigger press.
I'll be honest, despite my best efforts I can't shoot a Bill drill any faster in Minor than I can in Major- I believe this is due to my current draw and trigger speed. Out of a Racemaster shooting Major or Minor I have pushed down into the 1.7x range. What I can say is I fail a lot more of those fast Bill drills shooting Major. You have to get your grip perfect and really squeeze the gun to get the major PF gun tracking in the A zone at that speed.
Now I don't think minor Vogel would beat major Vogel over the course of a USPSA match, but I think he probably would on a plate rack, or on an average of 5 plate racks. None of the top shooters choose their standard USPSA 40 in Major for three gun. I don't think many (any?) top shooters shoot Major pf ammo in steel challenge outside Open (and even then, I think most shoot reduced loads). So it seems reasonable to me that there is some adjustment for PF. What would you propose for a more reasonable point differential, none? 3.5 per C?
At the end of the day, pick the division/PF you like, and shoot it. I think your thoughts on mag capacity are spot on. If you look at 2014 Nats again, high Prod and high L10 are separated by just over 1% in the Combined Overall. I wouldn't be surprised if the top Prod shooter places above top L10 at this year's Nats. Just my thoughts, and I understand some may disagree.
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I received my new Taccom ULW barrel tonight and installed it. The weight and balance is amazing! I will finish installing the handguard and shoot a match with it Saturday, then report back.
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Th Red Oktober match from last year was a blast! Here is my build thread and match video from last year's match:
If you want to see how it is done watch Samuel Travis' match from last year. He won HOA with a chopped, pinned and welded iron sighted 7.62.
I shot Heavy Kalash, so I used irons and 30 round PMags with the Magpul coupler. I used HSGI Taco pouches, which work pretty well, but can snag on the lip of the AK mag. I used the coupler for most stages but most guys I saw were reloading from the belt. I monopodded on one stage and the 30 round mag height was great (I'm 6', 220 lbs, for reference).
The ALG AKT is very good for the money. I'm planning on doing some work to my front sight base to get it square and pinning and welding one of the SJC AK Titans to replace the stock AMD65 comp.
The big differences in setup for next year depend on if they do a night stage again. IIRC last year's was tossed due to the light not being controlled to provide competitive equity. If they do, I would strongly consider some flash suppression and definitely get some white light on the gun. The guys with good lights and/or dots were ripping through the stage with no issues like it was broad daylight. After 6 or 8 shots my eyes were toast, and I don't think I even cleared half the targets before I timed out. I probably wont get anything fancy, maybe just rig up a handheld Surefire but that light makes the sights stand out on the plates.
In terms of safeties and other details, I went with the stock parts for now. They had a lot of cool vendors last year with demo guns, suppressors, parts, etc which might give you a chance to go hands on with some of the other parts you are looking at.
It sounds dumb, but I would take whichever of your AKs is most reliable. Lots of guys had gun or mag issues. I liked the light, stamped, and shortened gun I shot because it let me run coupled mags without getting too heavy.
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On 5/2/2017 at 10:01 PM, kneelingatlas said:
The CFD shoots slightly softer and slightly flatter, both good comps though.
A big plus one for the LSI here.
I'm going to have to disagree with my good friend kneelingatlas here.
While I appreciated the extremely light weight of the CFD comp TO ME it felt noticeably harsher in the hand than a similarly configured blaster with an LSI comp. After trying both I had Glenn at LSI build me a midlength, steel gripped 9 major with his comp and 3 ports.
I'm no Open master but I have had some die hard 38 shooters blown away by how my gun tracks and handles.
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Tactical Micropockets was the Goldilocks grip for me. I prefer it greatly to the standard or the aggressive.
A lot of guys consider blood and scrapes from the aggressive a badge of honor. I prefer to grip my guns so the Tactical seems to be good for that.
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No. The metal grips are metal grips. Mainspring housings come in a variety of shapes and sizes.
The SV Ergo and maybe the PT Evo both have a more CZ-ish back strap profile. The SV comes with a custom MSH that matches the grip and beavertail. Maybe that is what you are referring to. Either way, they don't match the profile of a standard arched MSH.
I do greatly prefer the ZM/Dawson metal MSH on a plastic grip to the plastic MSH.
I like the SV Ergo even better.
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34 minutes ago, barrysuperhawk said:
If anything the AR chamber and bolt setup is as strong or stronger than most pistols.
I agree with you on this point. The difference is we aren't talking about an AR chamber and bolt. There are no locking lugs as these are straight blowback. Also, unlike a standard AR bolt where the firing pin can't reach the primer unless the bolt is in the locked position the blowback ARs will fire out of battery. You could have over 30k psi supported by nothing but the brass.
I've seen enough blood on multiple occasions from out of battery ignition that I wouldn't do it. If you want to that's cool but think about who might be to the right of you. For me, as a right handed shooter an OOB incident would likely spit brass at the RO. It might be worth it to you, but personally I'll just get the defective round out and keep shooting.
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The Red Oktober match allowed any ammo, which was nice. Barring that I would try to use Yugo M67, which, I believe doesn't attract a magnet.
As an update, SJC now makes a Titan comp for the AK so I think mine is about to get louder and flatter shooting than ever before.
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1 hour ago, Acsr said:
Could you post a pic? How do you like the romeo compared to others?
Here is a thread with a few different angles of it:
http://forums.brianenos.com/index.php?/topic/244227-9mm-lsi-ss/
I like the Romeo3. I have been using one for PCC where it is perfect. I like it on the Open gun and the brightness seems good. I like it as much as a standard, vertical CMore with the benefit of reliable 9mm ejection and less height over bore, and much better than a 90 degree CMore.
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I am using the Double Tap RTS2 mount with my Romeo3. The blast shield just needs 2 holes drilled to be able to mount it to clear the extended front profile.
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2 hours ago, theWacoKid said:
Aric,
SV sells hybrid threaded barrels for 5" guns. IMM's are 4.5" guns. Schuemann would have the capability to make one, but they don't list it on their website and may have agreed with SVI not to sell them. I've been meaning to give them a call about this. Currently, KKM offers a non-hybrid threaded 4.5" barrel for modified length builds. That's all I know of.
When you say a 5" gun you mean a full length, government slide, correct? In that case the barrel would be 5.5", and you would need to add a .4 to a half inch to all of your other numbers to include the part of the barrel that is threaded unless you are talking about a cone comp gun.
Just trying to clarify so nobody orders the wrong barrel. My understanding is that the IMM barrel is around 5" to the crown. I don't have one here to measure but someone probably does.
I tried to reach out to Schuemann about ordering a 5", threaded IMM length hybrid barrel and didn't have any luck. I tried to order or backorder a 5", plain hybrid and didn't have luck with that either. You may have better luck, and if that is the case I wouldn't mind ordering one and I can think of some others who would probably want to order as well, if they do a limited run.
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Last I heard they do not typically sell the IMM length barrel (appx. 5").
They sell a 5.5" for a full length slide. IIRC the IMM has is an AET configuration and the barrels they sell separately are not.
Glenn Rasch at LSI was able to confirm adequate material for lockup, mill a portion of the rib off and thread a 5" Schumann hybrid for a SS (midlength) build. I love the length and balance of it and lockup is perfect.
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1 minute ago, 3djedi said:
Oh, I re-read your post and I see your saying to play more with the CO gun before going all out on a open gun. Right?
That's if you aren't completely sold on jumping in to Open. If you are sold on Open skip the 40 and buy a 5" to 5.5" 9 Major 2011. Resale on a 40 caliber Open gun is terrible and if you have a competitive personality I doubt you would be happy with it.
My rule of thumb for gun selection is to pick something similar to what the super squad uses. That way you never have to wonder "what if I had x gun".
Right now in Open that means a mid or full length 38sc or 9 Major, split between plastic and metal grips. Most have some holes, some have smaller RDS like the RTS2 and everyone else runs a vertical C More. The further you deviate from that the more excuses you have, which I feel is detrimental.
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1 hour ago, 3djedi said:
I wonder why .40 is not used much in open... Kind of seems ideal for a guy that shoots limited and just wants to get his feet wet in open.
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40 Open and ideal don't belong together.
If I were in your shoes and didn't know if I wanted a competitive Open gun I would play with CO more and if you like the dot (even if you don't like the trigger, grip angle or whatever) then invest in a competitive Open setup.
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I think there is a lot of ambiguity in what a "short" open gun is. Some consider it to be anything less than a 5.4. The general consensus seems to be that a gun using an uncut Government length slide is a full size gun, with the barrel being 5.4 or 5.5 inches. A shorty would be a gun with a Commander length slide, with a barrel length of 4.65 to 4.75 inches. Something in between (like the IMM, LSI SS, a lot of the Akais, Brazos Pro Sx) usually starts with a government length slide cut back about a half inch, for approximately a 5" barrel length. The midlength seems to currently be hot with the top shooters (and some super squad shooters are using shorter open guns in 9mm). I think a lot of people state their gun lengths relative to how much gets cut off a government slide, i.e. a government length slide cut back a half inch would be called a 4.5" even though the barrel length is closer to 5". A cone comp is an exception to this as the thread engagement can be inside the slide.
I have tried to follow what the top 16 are shooting, and I haven't yet seen a top shooter shooting essentially a steel challenge gun at a major USPSA match. Can you make major with a 4.1" SC gun? Sure. But I am inclined to believe there is a reason none of the top guys seem to be using guns that short for major PF.
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The shorter the barrel the less buffer weight you "need". The bolt/buffer mass in a blowback gun is designed to keep the bolt closed long enough for pressure to drop to safe levels that the case can withstand. The shorter the barrel the less mass you need for safe operation because the pressure in the barrel drops sooner. If you look at an SMG design book you should see the formula demonstrating that this is the case.
I've tried removing the mass from the bolt and running a 9mm buffer in a 16 inch barrel and I liked the combo a lot. I would like to go lighter, eventually, but with a 16" barrel I don't want to get too close to the edge.
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I would not want a 9 Major gun that short, personally. I would contact them and see what loads they can recommend that make PF and see if you are willing to accept that limitation.
I just got an LSI SS, which is a 5" mid-length 9 major and the balance and dot tracking is perfect for me. It already takes a fairly heavy and compressed charge to make PF at that length (albeit with 3 popple holes) at 9.3 grs of HS6 with a 115 Precision Delta.
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I use the Double Tap RTS2 mount for my Romeo3. My smith redrilled the blast shield (although we could have just left it off) to clear the extended front profile compared to the RTS2.
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A number of people are making direct impingement 9mm uppers at this point. Most need a bit of extra gas to cycle.
I think the issue you would have with a piston in a 9mm AR is the barrel nut. The MPX taps its gas from essentially where the barrel nut is in relation to the chamber on an AR.
There are a few people running skeletonized 9mm DI bolts and lightweight buffer setups that are claiming proper function with factory ammo. If you were able to use a similar setup with a piston you may be able to get it to run.
I really want someone to come up with a a dual mass or roller locked delayed blowback 9mm upper.
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21 hours ago, Flatland Shooter said:
Since wgj3 is able to run bullets long in his Faxon barrel, are the barrels they make for KAW chambered differently with less leade?
Or am I missing something?
I was not able to tell a difference in chamber leade in 3 Kaw Valleys and a Faxon. They all need to be loaded short if using coated. All 4 would take mag length jacketed bullets without issue though.
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Is there something the KAK with aluminum inserts would do that the Vltor A5 with appropriate steel/tungsten inserts wouldn't?
For me, going lighter is the magic setup. I like 18 oz total bolt/buffer weight best of what I have tried, but I suspect that is only because I haven't tried lighter yet.
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On 12/26/2016 at 5:09 PM, zzt said:
+1
Eric, 9mm once fired is $10 per 3000 around here. You are overpaying unless it is processed.
At $3.33 per K I would buy 60k right now.
While I appreciated the extremely light weight of the CFD comp TO ME it felt noticeably harsher in the hand than a similarly configured blaster with an LSI comp. After trying both I had Glenn at LSI build me a midlength, steel gripped 9 major with his comp and 3 ports.
Charging Handles for AR-15
in Rifle - Technical
Posted
Think of an extended CH as a slide racker. It makes unloaded starts and malfunction clearance easier and faster than they would be otherwise.
I have the NERD extended ambi handle and it makes it easy to run the bolt from either side.
That style is made by Radian (formerly AXTS).