Warning

 

Close
Confirm Action

Are you sure you wish to do this?

Cancel Confirm
AR15.COM
Armory Sponsor
8/20/2025 3:37:37 PM EDT
I picked this up the other day.  It's one of the new James River BM62 "tankers".  The receiver is one of their new billet ones, so hopefully it's good to go.

It seems well put together, still haven't had a chance to shoot it however.




I'm still looking for a gunsmith willing to either attempt to shorten a tricompensator I've got, or just cut it off and thread it 5/8x24 so I can put a flash hider on there.  The tanker Garand I had a long time ago threw an impressive fireball out of the muzzle, I'd like to mitigate that with this rifle.  So far no one locally wants to tackle the project.  Maybe I need to try a machine shop.


I'd like to remove the middle part, between the lines.  Attaching the original comp/hider to the stub is probably cost prohibitive, but I don't see how just cutting it off, and threading it would be much of a problem

8/20/2025 4:05:57 PM EDT
[#1]
it looks great, yo could probably get one of the national shops to thread like Hyatts, or Wlliams, or Lohmans or Paducah, a chop and weld would harder for it to turn out looking alright.
Redd Bingham
Guntech III
Brownells Inc.

https://lnk.bio/Redd_BrownellsGT
8/22/2025 4:18:52 PM EDT
[#2]
Nice looking gun.
3-7-77
Proud Member of the Leather Head Mafia
“In my opinion, the M1 Rifle is the greatest battle implement ever devised” - George S. Patton
8/30/2025 8:34:24 PM EDT
[#3]
Contact John Thomas at Retro Arms Works, he does good work
We are living in a Tom Clancy novel

Over 50 and reputed to be a formidable brigand

https://hr1871.com/
9/1/2025 7:46:48 PM EDT
[#4]
Why not just use the 3" brake?
9/1/2025 9:48:16 PM EDT
[#5]
Originally Posted By mike_nds:
Contact John Thomas at Retro Arms Works, he does good work
View Quote


Sadly, he isn’t taking on any custom stuff currently.


Originally Posted By M1G:
Why not just use the 3" brake?
View Quote


I don’t have a short brake.  It’s not a factory BM62.  JRA ships it like that. With a plain muzzle, no brake.
9/5/2025 8:11:05 AM EDT
[Last Edit: M1G][Edited] [#6]
you wanted something shorter, instead of cutting a long comp down buy a 3 " BM59E  brake and install
9/5/2025 1:14:19 PM EDT
[#7]
Quote History
Originally Posted By M1G:
you wanted something shorter, instead of cutting a long comp down buy a 3 " BM59E  brake and install
View Quote


E series brake won’t work with a BM59 gas system.  Only the Garand.  The gas cylinder is 1/4” lower on the 59.
9/16/2025 3:18:53 AM EDT
[#8]
Originally Posted By Dr_Nimslow:
I picked this up the other day.  It's one of the new James River BM62 "tankers".  The receiver is one of their new billet ones, so hopefully it's good to go.

It seems well put together, still haven't had a chance to shoot it however.

https://i.imgur.com/LKEhorR.jpg


I'm still looking for a gunsmith willing to either attempt to shorten a tricompensator I've got, or just cut it off and thread it 5/8x24 so I can put a flash hider on there.  The tanker Garand I had a long time ago threw an impressive fireball out of the muzzle, I'd like to mitigate that with this rifle.  So far no one locally wants to tackle the project.  Maybe I need to try a machine shop.


I'd like to remove the middle part, between the lines.  Attaching the original comp/hider to the stub is probably cost prohibitive, but I don't see how just cutting it off, and threading it would be much of a problem

https://i.imgur.com/9ukAqaq.jpg
View Quote


The part you want to cut out is the booster chamber, which to my understanding helps to provide the correct pressure for proper cycling.  The BM62 muzzle devices were basically just booster chambers.

You could cut off the flash suppressor and compensator parts (and may as well do the lug, too, at that point since I don't think it would be functional anymore) and have something shorter and functionally the same as the muzzle device used on the BM62.  It would be useful to refer to a cutaway drawing of the tricompensator.  It shows the delineations.
The finest opportunity ever given to the world was thrown away because the passion for equality made vain the hope for freedom.

-Lord Acton
10/25/2025 2:10:53 PM EDT
[#9]
I found a guy locally who was willing to take on the project, it now wears a Surefire Warcomp sport.   Also added a primary arms 3x micro in a cogburn arsenal mount.  Hope to get a chance to shoot it one of these days.


10/26/2025 6:06:10 AM EDT
[#10]
Will a Garand muzzle adapter work? If so, use it, and then you can choose to use any 5/8-24 Flash Supressor or Brake.
10/26/2025 10:40:29 AM EDT
[#11]
Quote History
Originally Posted By Dr_Nimslow:
I found a guy locally who was willing to take on the project, it now wears a Surefire Warcomp sport.   Also added a primary arms 3x micro in a cogburn arsenal mount.  Hope to get a chance to shoot it one of these days.


https://i.imgur.com/lGGyCxD.jpg
View Quote


Nice, I have a bm 59 that I traded a cheap 308 ar for. I shot it a few times, but that sucker is heavy and not very fun to shoot. That gun looks nice.
3-7-77
Proud Member of the Leather Head Mafia
“In my opinion, the M1 Rifle is the greatest battle implement ever devised” - George S. Patton
11/3/2025 8:17:25 AM EDT
[#12]
Quote History
Originally Posted By bigstick61:


The part you want to cut out is the booster chamber, which to my understanding helps to provide the correct pressure for proper cycling.  The BM62 muzzle devices were basically just booster chambers.

You could cut off the flash suppressor and compensator parts (and may as well do the lug, too, at that point since I don't think it would be functional anymore) and have something shorter and functionally the same as the muzzle device used on the BM62.  It would be useful to refer to a cutaway drawing of the tricompensator.  It shows the delineations.
View Quote


Both my BM59 builds will run without the Tri comp and just a unthreaded short muzzle from Standard parts.  It is indeed a booster, it probably matters more when dirty, etc.  but they may run fine without it.  I was hoping to thread these short muzzle nubs and fine a suitable short brake but never did.  I too prefer the look of the tri-comp but the length on a Para stock version is too much.  Not as much liking the short 3" BM59E brake and   Finding a real QD para muzzle device is not easy,



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

Armory Sponsor