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Low Mass BCG

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1 minute ago, NoKimberDave said:

 

Have you tried a reduced power spring?

Yes- and that did not work too well

 

2A actually said to use an extra power spring...

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1 minute ago, Joeg26er said:

Yes- and that did not work too well

 

2A actually said to use an extra power spring...

 

Cool. Just checking.

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32 minutes ago, Joeg26er said:

Question for those running the low mass Whiskey Arms low mass bcg. What buffer, spring, gas system are you running?

 

I am having some teething / set up issues with my low mass adjustable carrier 2A bcg. Using carbine buffer with weights removed, red extra power spring and dialing back to lock up on empty mag 

but still getting occasional mis-feed. The live round after firing about 2 to 3 consecutive double taps jams tip up with the bolt jammed into the casing midsection

 

dialing gas down to single shot mode and then dialing up to mag lock back...

 

JP SCS Gen2 with spring it comes with (I believe that is the black spring which is 80%?).  The stock JP SCS Gen2 setup replicates a carbine buffer with standard buffer spring as I recall it.  That is a Whiskey Arms carrier with a JP enhanced bolt with a Stretch16 barrel, which is intermediate gas length.  

 

When I tried a TACCOM ULW buffer with TTI light spring, the carrier speed was excessive......rifle ran ragged, very sharp impulse, and would not reliably lock back......one click difference would be single shot while the next would not reliably lock back.....and sometimes do some other stuff that I won't mention, lol.  Going to a standard carbine buffer with the TTI light spring or standard spring worked excellent and was a much smoother operating rifle.  

 

I would recommend trying a standard power spring with the carbine buffer.  

 

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2 minutes ago, AustinWolv said:

 

JP SCS Gen2 with spring it comes with (I believe that is the black spring which is 80%?).  The stock JP SCS Gen2 setup replicates a carbine buffer with standard buffer spring as I recall it.  That is a Whiskey Arms carrier with a JP enhanced bolt with a Stretch16 barrel, which is intermediate gas length.  

 

When I tried a TACCOM ULW buffer with TTI light spring, the carrier speed was excessive......rifle ran ragged, very sharp impulse, and would not reliably lock back......one click difference would be single shot while the next would not reliably lock back.....and sometimes do some other stuff that I won't mention, lol.  Going to a standard carbine buffer with the TTI light spring or standard spring worked excellent and was a much smoother operating rifle.  

 

I would recommend trying a standard power spring with the carbine buffer.  

 

Thanks - that sounds a bit like my issues. Narrow adjustment range. I'll add some weights back to the carbine buffer and try again

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They're relatively new, but Brownells came out with their own low mass BCGs.  3 coating options, I went with Nickel Boron, and for $130 and 8.2oz, you can't beat it.  1500+ rounds through it, and not a hiccup - it also cleans easier than my old nickel boron one it replaced.  Running it with a JP SCS with the white spring (80%, stock is 85%), and an adjustable gas block - it's beautiful.

 

https://www.brownells.com/rifle-parts/bolt-parts/bolt-carrier-groups/m16-5-56-lightweight-bolt-carrier-group-prod116267.aspx

 

Edited by Snausages32

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On 5/3/2018 at 8:11 AM, Snausages32 said:

They're relatively new, but Brownells came out with their own low mass BCGs.  3 coating options, I went with Nickel Boron, and for $130 and 8.2oz, you can't beat it.  1500+ rounds through it, and not a hiccup - it also cleans easier than my old nickel boron one it replaced.  Running it with a JP SCS with the white spring (80%, stock is 85%), and an adjustable gas block - it's beautiful.

 

https://www.brownells.com/rifle-parts/bolt-parts/bolt-carrier-groups/m16-5-56-lightweight-bolt-carrier-group-prod116267.aspx

 

Thanks 

what barrel and gas block?

gas port size and gas block setting?

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Ballistic advantage 16" midlength .750 - hanson profile

Superlative Arms adjustable gas block

If I remember right, it's the 7th or 8th click...  maybe 6th

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I use a JP with there silent capture spring and love it 

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On 5/1/2018 at 12:10 PM, AustinWolv said:

When I tried a TACCOM ULW buffer with TTI light spring, the carrier speed was excessive......rifle ran ragged, very sharp impulse, and would not reliably lock back......one click difference would be single shot while the next would not reliably lock back.....and sometimes do some other stuff that I won't mention, lol.  Going to a standard carbine buffer with the TTI light spring or standard spring worked excellent and was a much smoother operating rifle.  

 

I would recommend trying a standard power spring with the carbine buffer.  

I have a Taccom ULW buffer and spring and also experience failure to lock back on the last round. I will try with a buffer with some weight to see if that helps. I've tried adjusting the gas block forever with no luck. 

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1 hour ago, sbfcolina2 said:

I’ve ran a JP for a couple years and love it. 

would you share your set up? Buffer weight, spring, gas system and barrel length?

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I have full JP enterprise JP-15 build 18” match barrel, lmos both bcg and buffer. I honestly don’t know the buffer spring weight. 

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i have a spikes with the JP spring, not as lightweight as most, but probably most durable

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On 8/12/2018 at 3:06 PM, SlvrDragon50 said:

I am using AIM TiN low mass BCG with a TACCOM light weight buffer system with no problems.

 

I have this setup on two rifles now and have been pleased for the money. It's cheap but works!

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I’m running the new TTI low mass bcg. But the shooting innovations new low mass at 5.9oz is pretty kick ass!


Sent from my iPhone using Tapatalk

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I run the JP low mass and ultra low mass both with the silent capture spring. I wouldn't choose any other combination. 

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I have always ran JP low mass steel carriers.  I typically shoot a mix of 55s and 77s in that setup.  I have a few set up that run the aluminum carriers and those are set up to run only 55s.  The aluminum carrier with the SCS with a #2 springs is the best setup I have stumbled on. 

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31 minutes ago, Clint U66 said:

I have always ran JP low mass steel carriers.  I typically shoot a mix of 55s and 77s in that setup.  I have a few set up that run the aluminum carriers and those are set up to run only 55s.  The aluminum carrier with the SCS with a #2 springs is the best setup I have stumbled on. 

I assume you're using the JP aluminum carriers? What kind of lifespan are you seeing from them?

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I'm also using the brownells 8 oz bcg in nickel boron. Its not as light as many out there, but it was $110 and it has functioned perfectly for 2000 rounds or so. I'm running it off superlative arms block, rifle length 18" odin works barrel. Buffer is an empty carbine unit with a rifle spring. I don't know how much lighter shooting a 6 ounce buffer could be in a 10lb rifle, but I know how much lighter my wallet would be.

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Been using Voodoo with integral gas key for a few years now with excellent results. 

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