JP vise blocks provide the same support and work for both platforms. I like the MI rod, the JP blocks are better if you have an AR15 and AR10.
I mean according to JP, they build their rifles in house with these blocks.
I mean according to JP, they build their rifles in house with these blocks.
Whether you clamp to the receiver or the barrel extension, if you don't secure the two together you will subject the barrel extension pin and receiver slot to twisting force. You can rip out pin and/or deform the receiver slot.
The pin is usually in danger when the pin wasn't installed correctly by the barrel manufacturer. You normally find that out when you're torquing the barrel nut while clamping or pinning the receiver. Mostly the receiver slot just deforms.
Anyone on the fence here you go. Clearance deal at Midway now.
www.midwayusa.com
Midwest Industries LR-308 Upper Receiver Action Rod
The Midwest Industries Upper Receiver Action Rod is the ultimate tool for barrel nut installs or removal. It is excellent for removing stubborn/seized...
www.midwayusa.com
Thanks I grabbed one.Anyone on the fence here you go. Clearance deal at Midway now.
View attachment 8405390Midwest Industries LR-308 Upper Receiver Action Rod
The Midwest Industries Upper Receiver Action Rod is the ultimate tool for barrel nut installs or removal. It is excellent for removing stubborn/seized...
Picked her up today, brand new G28. No clone, original optics etc. Christmas is early this year
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If there is something wrong with the bipod please let me know. This is how i got it directly from HK. I am no collector at all, the rifle will be shot until it falls apart
You cant move it further forward, asked HK and they told me they did that due to impact shifts during testing.
Daniel
Sick. How does it shoot?View attachment 8410642
Picked her up today, brand new G28. No clone, original optics etc. Christmas is early this year
Will be testing her in about 2 weeks i guess. Waiting for ammunition. Will post a few pics, V0 and targets to let you guys know.
I am a bolt action guy so this is going to be interesting. First impression: very well made, cheek riser fits perfectly concerning height. If i raise my head slightly i have a perfect view through the T1. Perfectly centered behind the optic, was a bit concerned since i prefer the edgy TRG cheek rest.
The PMII is out of this world as expected.
Weight is heavy even for me although im used to TRGs and AIs.
HK will burn in hell though for the trigger installed. Will need lots of dry fire to get used to that. And i am used to 1-2kg triggers.
So far...
The Set is up to almost 15k in germany without suppressor. Got it for around 11k including the suppressor. Would not pay the price asked these days. Not worth 15k imho.
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That H&K is both the coolest and ugliest rifle around.
I ordered one of these,
www.rainierarms.com
couldn't justify the Krieger at this point, wouldn't want to rip a bunch of M80 ball out of a Krieger.
Seems to have some good reviews. SA gas block also on the way and I should be good to go.
Rainier Arms Match .308 Barrel
Rainier Arms Match .308 Barrel Many have asked us to build a barrel with the same workmanship as our UltraMatch barrels while keeping it more affordable. We are able to reach our goal by sourcing a very high end barrel blank at an affordable price. We sta
www.rainierarms.com
couldn't justify the Krieger at this point, wouldn't want to rip a bunch of M80 ball out of a Krieger.
Seems to have some good reviews. SA gas block also on the way and I should be good to go.
Hey, no, no CO2. Just a few plant and Shrimps. Everything runs fine, just growing a bit slower!
The reticle is a patent of H&K. Yes i am from germany. Thats why i am restricted to 10 round mags....working on papers for 20-30 round mags though.
Its due to a zero shift when you mount it further forward. Thats why there is no rail at all in that area of the handguard.
I ordered one of these,
Rainier Arms Match .308 Barrel
Rainier Arms Match .308 Barrel Many have asked us to build a barrel with the same workmanship as our UltraMatch barrels while keeping it more affordable. We are able to reach our goal by sourcing a very high end barrel blank at an affordable price. We sta
couldn't justify the Krieger at this point, wouldn't want to rip a bunch of M80 ball out of a Krieger.
Seems to have some good reviews. SA gas block also on the way and I should be good to go.
I hope you bought the 18".
I didnt know Germans could own those guns. Adds to my jealousy!!!!
Government currently tries to ban semiautomatic rifles, not sure if they manage to do that though. Thats why i thought now or never.
Promised myself I was done building any more AR’s for a while, but couldn’t resist a great deal for a new Proof CF 18” 308 barrel.
Now to decide on a receiver set. My two current large frame rifles are on Xanthos Lite receiver sets, but I’m leaning toward MWS, SP10 etc for this.
So it begins…
Now to decide on a receiver set. My two current large frame rifles are on Xanthos Lite receiver sets, but I’m leaning toward MWS, SP10 etc for this.
So it begins…
How fucked am I? Aero rifle length gas tube, aero enhanced upper, Rainier Match 18" rifle gas. The gas tube has a slight shoulder that wont let it go into the upper any further. I have a SA adjustable block coming tomorrow but this shit doesn't look right to me.
Also heres a borescope of the barrel, only ran 2 patches of patch out through it, no scrubbing or anything. Looks like I'm gonna scrub some.
Also heres a borescope of the barrel, only ran 2 patches of patch out through it, no scrubbing or anything. Looks like I'm gonna scrub some.
Attachments
You can measure the gas tube to see if it is in spec or if it's the upper. Mil-Spec gas tubes are 0.180" (+/- 0.001") OD for the larger diameter area.
Additional specs not related to your issue: 0.170" (+/- 0.004") for the smaller diameter area, which extends 2.33" from the flared end. The OD spec for the flared end is 0.1800" (-0.0006").
There are heavy wall gas tube that are not Mil-Spec, that doesn't look like one of them. I don't know what Aero specs for the gas tube opening of their Enhanced uppers, but their anno is thicker than most.
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Take a 35cal bronze brush, spray it down with FreeAll (or equivalent penetrating oil), and run the brush down the bore (back and forth) 100 times. Reapply the oil every 10 to 20 strokes. When you're done, scrub (sawing motion) the bore with a 30cal patch wrapped around a nylon 30cal brush, using Iosso or JB. One or two total passes. Most of that will clean up.
Return and replace the gas tube.
I hoping to not have to take a drill to my brand new stuff, perhaps I will though. Not before I try another tube.
I believe what you're seeing is left over lubricant from the buttoning process. It gets pressed into the metal and takes some time to come out. Pretty sure a little Iosso or JB will take it out, although it'll come out when he shoots it.
is the tooth on the barrel nut touching the gas tube? IIRC, it helps to time the barrel nut, even though the gas tube sorta clears the teeth. just to give it maximum clearance. But it's been a while since I assembled mine (Aero enhanced M5 upper).
I thought maybe but no you dont have to fit the tube through the teeth with the enhance upper. The tube will clear no matter what. The hole the tube goes in needed brushed out really well. Real tight before I brushed it out.
- Aero Upper 6.5 CM 24”, SS, Hvy BB .930 dia. At Muzzel, 1-8 twist
- Aero M5 Lower
- JP Bolt Carrier
- JP .308 High Pressure Bolt
- Giselle Buffer Spring
- Radian Trigger
- Radian Charging Handle
- Juggernaut Hellfire System
- Aero Lower Parts Kit
- Precision Armament M11 Muzzle Brake
- Magpul PRR Gen 3 Stock
- Hogue Grip
- Area 419 12” ARCA rail
- Leupold MK5 HD 3.6x18
To be fair I did my zeroing on that tatget so a few of those that are way out are from that but still it wasnt even really grouping half the time.
The match had a couple people in the reviews claiming good results. Probably shouldve gone with the ultramatch. Not really a fan of flutes either
Post some pictures of your upper build. Groups like that suggest interference between the gas block and rail, or gas tube and upper. Even the worst barrels will normally print under 2".
I've said it elsewhere, Criterion is the best deal going. The one I bought is immaculate inside and has a gas port that looks reamed. I caught it on sale for roughly $300 here: https://ar15discounts.com/products/...08-m118-hybrid-stainless-rifle-length-barrel/
I checked all that, plenty of room with the handguard. Gas tube it not binding or anything. The bipod was kid of rough and I can tell that large framer gassers are probably the hardest to shoot well. Even still I can shoot pretty well with my SPR. Lots of follow through. One or two of the groups was 2ish" but not even close to consistently.
I did start with the gas block wide open and worked my way back after each 5 round group. Needed to come back a decent amount before I stopped getting ejector smears/burrs.
Remember some of those way out shots were from zeroing the scope. it came off a gun with a 20 moa rail and the windage was like 5 mils off on the new gun.
If you’ll humor me, my experience with large frame gassers is that one really has to have their fundamentals dialed in consistently to shoot them well. Also, I discovered my gas gun doesn’t like a bipod. It bounces all over hell and creation and doesn’t group for shit. I chalk this up, partly, to the nature of the bipod/hand guard/barrel nut relationship. Once I started using a bag for a rest and really got my body position and head/eye position correct and consistent, my rifle showed its quality. It could be that none of this applies to you and if it doesn’t then just ignore me.
The Rainier went back, I am going to bite the bullet and go Krieger. Can anyone speak to the difference in the breech and neck length and diameter they offer? I assume shorter is more of a match chamber and longer leaves more room for functioning?
I put a Aero upper and Ballistic advantage barrel together and am getting light primer strikes here and there. Put the heavy spring in the Larue 2 stage, still happens. Most rounds fire but every range trip out of 3 had a few light strikes. New CCI 200s with varget, no issues in other guns.
I have resized brass fired from the chamber and was not able to bump the shoulder with the die touching the shell holder. I also noticed a little bit of soot on the shoulders of some of the rounds. If I rechamber a round that failed to fire, they always fire on the second try. Headspace probably? Its an Aero M5 bcg. Ballistic advantage 18" hbar 308. I need a new bolt or a new barrel if thats the case right?
I have resized brass fired from the chamber and was not able to bump the shoulder with the die touching the shell holder. I also noticed a little bit of soot on the shoulders of some of the rounds. If I rechamber a round that failed to fire, they always fire on the second try. Headspace probably? Its an Aero M5 bcg. Ballistic advantage 18" hbar 308. I need a new bolt or a new barrel if thats the case right?
