New (to me) M1A in a Sage EBR chassis

December 27, 2023, 10:18 PM

rkentm

quote:
Originally posted by benny6:

And while we're on the subject, I recommend the EBR RPS trigger. It gives you the proper angle and allows your finger to rest comfortably on the trigger for pistol-gripped rifles.

Tony.

Tony, installed the trigger and valve today. Really liking the adjustability on that trigger. Range day tomorrow and I can’t wait!

December 28, 2023, 01:11 PM

benny6

quote:
Originally posted by rkentm:
quote:
Originally posted by benny6:

And while we're on the subject, I recommend the EBR RPS trigger. It gives you the proper angle and allows your finger to rest comfortably on the trigger for pistol-gripped rifles.

Tony.

Tony, installed the trigger and valve today. Really liking the adjustability on that trigger. Range day tomorrow and I can’t wait!

Great to hear! The SS RPS triggers are worth it, IMHO.

Tony.

August 08, 2024, 08:29 AM

rkentm

Just added a Sadlak oversized mag release and a Smith oversized bolt hold/release! Do I “need” them? No. Do I enjoy tinkering with my rifles? Absolutely!!

August 08, 2024, 06:07 PM

sigcrazy7

I had always wanted a M1A, but recently found a good deal on a James River M14 with a Bula receiver.

Question. There’s a lot of info in this thread for M1A stuff. Will those same parts/mods work equally well on my M14? IOW, is “M1A” being used generically, or are you referring specifically to the Springfield M1A?

August 08, 2024, 09:53 PM

benny6

quote:
Originally posted by sigcrazy7:
I had always wanted a M1A, but recently found a good deal on a James River M14 with a Bula receiver.

Question. There’s a lot of info in this thread for M1A stuff. Will those same parts/mods work equally well on my M14? IOW, is “M1A” being used generically, or are you referring specifically to the Springfield M1A?

M1A is the trademarked name for the Springfield Armory, Inc. For technical purposes, M1A and M14 can be used interchangeably.

Let me know if you have questions or issues with your Bula.

Tony.

August 09, 2024, 08:21 AM

CD228

Op, thanks for the close up of the Optic mount. I haven't een one of those before.

Tony a.k.a benny thanks for the post on the gas plug. Am I right in believing thats also how you deal with the pressure generated by M118LR and the like?

August 09, 2024, 08:26 AM

CD228

quote:
Originally posted by benny6:
quote:
Originally posted by sigcrazy7:
I had always wanted a M1A, but recently found a good deal on a James River M14 with a Bula receiver.

Question. There’s a lot of info in this thread for M1A stuff. Will those same parts/mods work equally well on my M14? IOW, is “M1A” being used generically, or are you referring specifically to the Springfield M1A?

M1A is the trademarked name for the Springfield Armory, Inc. For technical purposes, M1A and M14 can be used interchangeably.

Let me know if you have questions or issues with your Bula.

Tony.

That leads to an intrsting follow on question.

The M14 in military service had the ability to fire fully automatic. This feature was disable by removing the selector switch, but as far as I know, no changes were done to the internals. That said I'm not an M14 armorer, nor did I get a chance to disassemble one.

I'm assuming that the M1A rifles have had changes made to the design that prevent it from being able to fire full auto.

Is that a valid assumption? What changes were made?

August 09, 2024, 08:29 AM

rkentm

Happy to post any specific views if you like, so just LMK.

quote:
Originally posted by CD228:
Op, thanks for the close up of the Optic mount. I haven't seen one of those before.

August 09, 2024, 11:36 AM

benny6

quote:
Originally posted by CD228:

That leads to an intrsting follow on question.

The M14 in military service had the ability to fire fully automatic. This feature was disable by removing the selector switch, but as far as I know, no changes were done to the internals. That said I'm not an M14 armorer, nor did I get a chance to disassemble one.

I'm assuming that the M1A rifles have had changes made to the design that prevent it from being able to fire full auto.

Is that a valid assumption? What changes were made?

Yes, there's a full auto lug on the right rear of the receiver that was removed. It housed the selector switch. The operating rod dismount slot was in the middle of the op-rod travel. That slot was eliminated and a dismount notch was moved to just below the rear sight windage knob.

There was also a groove under the front right of the receiver that kept the full auto connector rod in place which is also not present in civilian models.

Real M14 receiver...

Civilian M14 receiver

Tony.

August 10, 2024, 08:11 AM

CD228

quote:
Originally posted by rkentm:
Happy to post any specific views if you like, so just LMK.

quote:
Originally posted by CD228:
Op, thanks for the close up of the Optic mount. I haven't seen one of those before.

thank you very much for the offer I appreciate it.

Is the ARMS mount sturdier then a Springfield Armory Mount?

August 11, 2024, 01:01 PM

CD228

Benny, thanks for the breakdown on the difference between the M14 and the M1A recievers.

August 11, 2024, 04:04 PM

kkina

That's a beauty. Question, why is the gas-tube so long and have two barrel clamps?

August 12, 2024, 11:06 AM

rkentm

No idea, but I bet benny6 could answer.

quote:
Originally posted by kkina:
That's a beauty. Question, why is the gas-tube so long and have two barrel clamps?

August 12, 2024, 12:15 PM

benny6

That's the gas cylinder. It is the same as any other M14. The only difference is that more of it is exposed with the SAGE chassis, although early chassis had a longer forearm which exposed less of the gas system.

Here's what's hidden beneath the forearm and handguard of a regular stock...

Just like an AR-15 front sight, it has a forward and rear band that slides around the barrel. All M14's have two bands on the gas cylinder.

Tony.