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  #201  
Old 1 October 2017, 11:18
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Quote:
Originally Posted by iraqgunz View Post
Typically when this happens, the extractor spring is too stout. This occurs when people use enhanced springs along with the highly abused O-ring.

The O-ring shouldn't be needed for proper function. The 7.62x39 AR's do not operate at the same type of pressure that the 5.56 guns do.
This was my initial thought, so I dissembled and found 2 things; 1, the doughnut and 2, the extractor pivot pin was REALLY hard to get out.

I am gong to try and shoot it with the BCG from my carbine.
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  #202  
Old 1 November 2017, 21:10
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Got the barrel from TFG: A very nice 10.5" .300 with a stainless extension. He even ran a patch down the pipe

Put together this pistol upper on the cheap, but it should be fully nice and functional:
  • $100 donation TFG's barrel
  • $24 no-name 10" handguard with Mlok slots
  • $39 Yankee Hill gas block and tube
  • $18 FirePig-style flash suppressor / sound projector
  • $49 AR Stoner forged upper
  • $12 upper parts kit
  • $74 AR Stoner BCG
  • $18 charging handle

My guess is that it will run just fine, assuming that the gas hole in the barrel, which looks like the friggin Black Hole of Calcutta, is actually the correct size.

If it turns out that it is overgassed, what functioning symptoms would you expect?

Thank you for your contribution, TFG. Well done.
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  #203  
Old 2 November 2017, 00:53
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I just remembered a slick little trick that 'Dave' over at the Legion's local sniper school taught me- cutting/grinding off 2 coils on the selector switch detent spring makes the selector move as slick as melted butter, but still decisively engages the detent...

YMMV but mine is the shizzel...
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  #204  
Old 2 November 2017, 09:52
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Quote:
Originally Posted by RGR.Montcalm View Post
I just remembered a slick little trick that 'Dave' over at the Legion's local sniper school taught me- cutting/grinding off 2 coils on the selector switch detent spring makes the selector move as slick as melted butter, but still decisively engages the detent...

YMMV but mine is the shizzel...
I think I'm going to try this on one of my carbines. Thanks for the info TFG.
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  #205  
Old 5 November 2017, 19:00
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Finished the .300 Blackout build this afternoon by making up the 80% lower. Found a Shockwave Blade that was unemployed, so it got pressed into service.

Range day is hopefully Wednesday.
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  #206  
Old 6 November 2017, 17:11
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  #207  
Old 18 November 2017, 18:29
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Quote:
Originally Posted by RGR.Montcalm View Post
I just remembered a slick little trick that 'Dave' over at the Legion's local sniper school taught me- cutting/grinding off 2 coils on the selector switch detent spring makes the selector move as slick as melted butter, but still decisively engages the detent...

YMMV but mine is the shizzel...
Have done this on a couple of my ARs now. Super slick. Go slow and keep checking for tension so you don't snip off too much.
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  #208  
Old 18 November 2017, 22:35
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Originally Posted by The Fat Guy View Post
This was my initial thought, so I dissembled and found 2 things; 1, the doughnut and 2, the extractor pivot pin was REALLY hard to get out.

I am gong to try and shoot it with the BCG from my carbine.
This fucking thing is working my last good nerve. I think what it is is that the tube is too long so the spring is not getting adequate tension to cycle the bolt. I now have 3 bolts for x 39 and still no joy. I ordered a KAK tube, made for the brace, its about 1.5" shorter than the one on their now. I could have just built a pistol from scratch.
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  #209  
Old 22 September 2018, 19:54
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So I think I have scrapped my thoughts of replacing my M14 with an AR in 7.62 as I just dont have a place to shoot that type of distance so I am now thinking of an AR pistol as a truck gun. If you were getting something new would you get the 7" or 10" barrel.

Also for those that have them are you glad you got one or are you wishing you got another rifle instead, basically are they worth it?
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  #210  
Old 22 September 2018, 20:08
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I built my 5.56 pistol from scratch and it works great. I keep it in my car in a 5.11 shorty bag. I am glad I built one and am glad we can put the brace on our shoulders now. I like the 10" but others likes the smaller barrels.
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Last edited by The Fat Guy; 22 September 2018 at 20:14.
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  #211  
Old 23 September 2018, 07:56
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I'm happy with the 10.5 one I built on a TV tray.
I like the SB PDW brace.
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  #212  
Old 23 September 2018, 10:16
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I put together a 7.5" upper that also works very well.
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  #213  
Old 24 September 2018, 14:35
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Quote:
Originally Posted by Massgrunt View Post
I put together a 7.5" upper that also works very well.
Ballisticily speaking any issues with the 7.5? Can you reliability hit a 100m target.
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  #214  
Old 24 September 2018, 14:37
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Quote:
Originally Posted by The Fat Guy View Post
I like the 10" but others likes the smaller barrels.

I have a 10.5 SBR so considering smaller, something more useful in breaking contact than anything else.
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  #215  
Old 24 September 2018, 15:08
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Quote:
Originally Posted by Joker View Post
Ballisticily speaking any issues with the 7.5? Can you reliability hit a 100m target.
Oh, I'm sure there are many. It's a compromise. I can have near rifle capability in a small enough package to keep close.

I haven't put a sighting system on it yet, just banged away with it for a bit after putting it together.
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"The real problem was being able to stick it out, to sit in an office under the orders of a wee man in a dark gray suit and look out of the window and recall the bush country, the waving palms, the smell of sweat and cordite, the grunts of the men hauling jeeps over the river crossings, the copper-tasting fears just before the attack, and the wild, cruel joy of being alive afterward. To remember, and then go back to the ledgers and the commuter train, that was impossible. He knew he would eat his heart out if it ever came to that."

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  #216  
Old 24 September 2018, 19:54
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Quote:
Originally Posted by Massgrunt View Post
I haven't put a sighting system on it yet, just banged away with it for a bit after putting it together.
Yea I'm thinking just iron sights maybe some magpul BUS.


What about something like this?

https://www.primaryarms.com/ghost-fi...-and-flash-can
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  #217  
Old 24 September 2018, 19:57
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Originally Posted by GPC View Post
I like the SB PDW brace.
Really liking those, wonder how long before someone decides its a stock.
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  #218  
Old 24 September 2018, 20:59
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Quote:
Originally Posted by Joker View Post
Yea I'm thinking just iron sights maybe some magpul BUS.


What about something like this?

https://www.primaryarms.com/ghost-fi...-and-flash-can
I don't know anything about that brand so I can't comment. I also have a flashcan on mine, partially to make the muzzle flash clear the rail.
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"The real problem was being able to stick it out, to sit in an office under the orders of a wee man in a dark gray suit and look out of the window and recall the bush country, the waving palms, the smell of sweat and cordite, the grunts of the men hauling jeeps over the river crossings, the copper-tasting fears just before the attack, and the wild, cruel joy of being alive afterward. To remember, and then go back to the ledgers and the commuter train, that was impossible. He knew he would eat his heart out if it ever came to that."

- "The Dogs of War" by Frederick Forsyth
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  #219  
Old 25 September 2018, 09:18
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I could build one from Aero Precision but it would be about $400 more.
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  #220  
Old 25 September 2018, 09:30
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Quote:
Originally Posted by Joker View Post
Really liking those, wonder how long before someone decides its a stock.
I don't know hopefully never.
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