Author Topic: AR BUILD HELP! UPDATED COMPLETE (Read 7121 times)

Mongo Hunter · « **on:** March 09, 2018, 08:06:21 AM »

So please bare with me this post will be long.

I was working on getting all the parts for my AR PDW pistol build. Well according to all the specs from the manufacturers I should have ended up with a 10" rail and a 10.875" barrel overall. The barrel is a 7.5" and the flash can I ordered from Midwest is supposed to be 3.875" long. I know I'm running really tight be I thought I would have the clearance.

in the end, the barrel to tip of the flash can is 10" and my rail ended up being about 10.125. so an 1/8th inch too long on the rail and almost and inch short on the barrel. I'm getting frustrated being I think I have 2 options. either buy a 8" barrel which still may not be enough clearance OR buy another rail an inch shorter...I just don't know what would be best. need some help from someone who may have gone through something similar.

Thanks guys

superdown · « **Reply #1 on:** March 09, 2018, 09:02:04 AM »

If it's 223/556 you could get a 1/2X28 to 1/2X28 thread extension. or the proper size for whatever caliber you have.

https://www.google.com/search?q=1%2F2x28+to+1%2F2x28+extension&oq=12x28+to+12x28+e&aqs=chrome.1.69i57j0l2.13355j1j7&sourceid=chrome&ie=UTF-8

Mongo Hunter · « **Reply #2 on:** March 09, 2018, 09:08:33 AM »

Ive never seen those! that might work, ill see if my local gun shop carries them!

Thank you!

Biggerhammer · « **Reply #3 on:** March 09, 2018, 09:17:38 AM »

Quote from: superdown on March 09, 2018, 09:02:04 AM

If it's 223/556 you could get a 1/2X28 to 1/2X28 thread extension. or the proper size for whatever caliber you have.

https://www.google.com/search?q=1%2F2x28+to+1%2F2x28+extension&oq=12x28+to+12x28+e&aqs=chrome.1.69i57j0l2.13355j1j7&sourceid=chrome&ie=UTF-8

That would definitely work! And save you money, time and hassle.

Mongo Hunter · « **Reply #4 on:** March 09, 2018, 09:23:38 AM »

Quote from: superdown on March 09, 2018, 09:02:04 AM

If it's 223/556 you could get a 1/2X28 to 1/2X28 thread extension. or the proper size for whatever caliber you have.

https://www.google.com/search?q=1%2F2x28+to+1%2F2x28+extension&oq=12x28+to+12x28+e&aqs=chrome.1.69i57j0l2.13355j1j7&sourceid=chrome&ie=UTF-8

it says rimfire though?

superdown · « **Reply #5 on:** March 09, 2018, 09:31:22 AM »

It shouldn't matter 22lr is .223 22mag is .224 as is .223/556 if you're at all nervous you could hone it out the 1000th of an inch if its in fact necessary which i doubt and at the of the day it's just chunk of metal that doesn't know what's being fired through it.

Mongo Hunter · « **Reply #6 on:** March 09, 2018, 06:35:26 PM »

Option 2? Is there a longer break than the midwest flash can? 3" or so?

Biggerhammer · « **Reply #7 on:** March 09, 2018, 09:22:56 PM »

Quote from: Mongo Hunter on March 09, 2018, 06:35:26 PM

Option 2? Is there a longer break than the midwest flash can? 3" or so?

Did you look at the Noveske KX3 or KX5?

https://www.noveske.com/products/kx5-flash-suppressor-w-crush-washer

Mongo Hunter · « **Reply #8 on:** March 10, 2018, 09:54:44 PM »

Sorry ment more than 3". The Midwest can is listed as slighty longer than the noveske.

Biggerhammer · « **Reply #9 on:** March 11, 2018, 07:22:52 AM »

The KAK can is 3.250 (3 1/4").

https://www.joeboboutfitters.com/KAK-INDUSTRY-1-2x28-223-5-56-FLASH-CAN-p/kak-flashcan-223.htm

You could set it a little further out on the 1/2-28 muzzle threads with a jam but. It wouldn't matter due to the fact it wouldn't be seen because the handguard would cover it. Unless you have seriously sensative compulsive, obsessive disorder! Then of course you would never sleep at night until you get a different barrel or handguard and correct the issue properly for your expections and perceived outcome.

The Surefire WARDEN blast diffuser is 3 1/2" in length.

https://www.midwayusa.com/product/1017845325/surefire-warden-blast-diffuser-for-socom-muzzle-devices-stainless-steel

Mongo Hunter · « **Reply #10 on:** March 12, 2018, 07:06:24 AM »

I looked at the Kak and the Noveske, they both are 3.25", the Midwest is 3.375". I bought the Midwest hoping that little extra would work. I got it all together this weekend. its doesn't look bad overall just not the look I was going for. hard to tell from the picture but the break is just inside the handguard. I found a guy that will machine a 1" barrel extension for $68 if I decided I don't want to leave it this way. we'll see how the final product works.

Biggerhammer · « **Reply #11 on:** March 13, 2018, 08:34:42 AM »

Check this out. I stumbled across it while checking out some sales e-mails I received. This is the KAK 1/2-28 extended flash can. 5" in length. That should get you where you want to be length wise.

https://www.kakindustry.com/kak-industry-extended-1-2-28-flash-can

Mongo Hunter · « **Reply #12 on:** March 13, 2018, 08:47:26 AM »

Quote from: Biggerhammer on March 13, 2018, 08:34:42 AM

Check this out. I stumbled across it while checking out some sales e-mails I received. This is the KAK 1/2-28 extended flash can. 5" in length. That should get you where you want to be length wise.

https://www.kakindustry.com/kak-industry-extended-1-2-28-flash-can

and for $40! dude you saved my bacon! thanks man!

Biggerhammer · « **Reply #13 on:** March 13, 2018, 09:37:30 PM »

Post a pic! I like the look your going for.

Mongo Hunter · « **Reply #14 on:** March 14, 2018, 06:44:37 AM »

I should have the lower this week. when I get it all together ill post it up.

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