Warning

 

Close
Confirm Action

Are you sure you wish to do this?

Cancel Confirm
AR15.COM
AR Sponsor
8/30/2026 4:45:03 AM EDT
So, building a mostly lightweight AR-10, and just wondering if anybody has experience with either the JP LMOS or the V7 Ti BCG? I already got an AGB on the way to gas the system properly.

I'm leaning towards the JP, I've used a handful of LMOS in my AR-15 build with no issue. Not sure if I'd even notice the extra two ounces over the V7 too. Plus, it's cheaper.
8/30/2026 9:41:26 AM EDT
[#1]
I’ve not used the JP. If you do, please post up how it performs
8/30/2026 5:35:25 PM EDT
[#2]
Quote History
Originally Posted By NTXGlocker:
I’ve not used the JP. If you do, please post up how it performs
View Quote


I definitely will. A lot of bolt issues I've been seeing in AR-10s tend to be fixed by people using the JP bolt so I'll be surprised if it doesn't work atleast halfway decently.

Probably going to grab the JP anyways, already got an SCS ready for the build so might as well make it a pair with the LMOS.
8/30/2026 10:24:15 PM EDT
[#3]
With a LtWt 308 BCG, just make sure you tune your Adj. GB from a fully closed position.  BTW, which Adj. GB ?

Most barrels tend to have oversized gas ports.

Use the old school, fire one / single round, from a mag.... repeat, adjusting the GB "open" until the bolt catch functions 100%

In your case ( LtWt BCG ) watch for any battering, from excessive BCG speed.

Just sayin' in case you did not know.

*Hold on to your AR-15s. Their magic must be very powerful, or they wouldn’t want them.*
JAFOM.... Just another fat old man.

________________________________

TOGC,IADC
8/30/2026 11:03:34 PM EDT
[#4]
Quote History
Originally Posted By bfoosh06:
With a LtWt 308 BCG, just make sure you tune your Adj. GB from a fully closed position.  BTW, which Adj. GB ?

Most barrels tend to have oversized gas ports.

Use the old school, fire one / single round, from a mag.... repeat, adjusting the GB "open" until the bolt catch functions 100%

In your case ( LtWt BCG ) watch for any battering, from excessive BCG speed.

Just sayin' in case you did not know.

View Quote


Went with a Wojtek Arkto. Used them prior without problem, and yeah, I usually start at either closed or a few clicks above when using an AGB. Appreciate the reminder, nonetheless.

Barrel is a Criterion Hybrid 16" Middy so it should be gassed okay for regular parts, and should choke down pretty well since the LMOS and standard weight SCS aren't too crazy light.
8/31/2026 2:30:44 PM EDT
[#5]
Quote History
Originally Posted By WriterClarke:


Went with a Wojtek Arkto. Used them prior without problem, and yeah, I usually start at either closed or a few clicks above when using an AGB. Appreciate the reminder, nonetheless.

Barrel is a Criterion Hybrid 16" Middy so it should be gassed okay for regular parts, and should choke down pretty well since the LMOS and standard weight SCS aren't too crazy light.
View Quote



"Like"
*Hold on to your AR-15s. Their magic must be very powerful, or they wouldn’t want them.*
JAFOM.... Just another fat old man.

________________________________

TOGC,IADC

Sign up to continue the discussion

Create a free account to share your thoughts, follow topics, and connect with the AR15.COM community.

Already a member? Sign In

AR Sponsor