The best job at machining the M14/M1A receiver. In other words who has the closest to USGI (short of being a machine gun) dimensions? Past or present? I don't care it the receiver is cast or forged or billet
Originally Posted By jdhill:
SEI or LRB
I have to say NOT lrb
Link
and for the price you have to pay... No thanks
Originally Posted By spankybear:
The best job at machining the M14/M1A receiver. In other words who has the closest to USGI (short of being a machine gun) dimensions? Past or present? I don't care it the receiver is cast or forged or billet
Overall
1. Smith Enterprise, Inc. select fire capable M-14 receivers
2. Springfield Armory, Inc. (Valley Ordnance Co.) select fire capable M1A receivers
Semi-automatic Only
Smith Enterprise, Inc. pre-2000 investment cast M-14 or M-14 NM receivers
Yes, I know SEI made billet machined receivers before 2000. As far as the OP's question is concerned, the investment cast SEI receivers are closer to USGI dimension because the receiver heel corners are not "squared off" like the billet machined receivers.
Originally Posted By spankybear:
DO you have the Serial number range for the SEI ?
I assume you're wanting the serial number range and/or identifying information for the pre-2000 investment cast Smith Enterprise, Inc. M-14 and M-14 NM receivers. Is that correct? I want to provide what you're after instead of too much information.
Originally Posted By Poon:
Norinco & Poly Tech
This.
Originally Posted By Different:
Originally Posted By spankybear:
DO you have the Serial number range for the SEI ?
I assume you're wanting the serial number range and/or identifying information for the pre-2000 investment cast Smith Enterprise, Inc. M-14 and M-14 NM receivers. Is that correct? I want to provide what you're after instead of too much information.
Yes... What range is the pre-2000 cast SEI receivers.
How close Chinese ones machined? Looks like a couple of people have said they are close.
And thanks for the info!
Originally Posted By spankybear:
The best job at machining the M14/M1A receiver. In other words who has the closest to USGI (short of being a machine gun) dimensions? Past or present? I don't care it the receiver is cast or forged or billet
The answer to this question, for semi-automatic only receivers, is Smith Enterprise, Inc. M-14 and M-14 NM investment cast receivers under serial number 001900. Those receivers were manufactured about 1986. The heel will have rounded, not squared, corners and NOT be marked FORGED USA on the operating rod rail. There was a run of billet machined receivers from about serial number 001915 to 002010 or so. After that, the serial numbers are for investment cast receivers. Investment cast receivers over serial number 002010 were given additional finish machining to enhance the aesethetic appeal. However, USGI M14 receivers did not receive such finish work. It's not uncommon to see milling marks on USGI receivers.
State Arsenal 356 produced semi-automatic only M14 receivers have the threaded hole in the barrel ring. That does not affect function or parts interchangeability but it is an obvious difference from the USGI receiver. These receivers were machined to accommodate Chinese bolts, not USGI dimension bolts. That's a significant difference as compared to the U. S. commercial receivers that are very close clones of USGI M14 receivers.
Originally Posted By Tim_the_enchanter:
Originally Posted By Poon:
Norinco & Poly Tech
This.
Argee
I've got 2. 1 full Norinco M14s. The other is just a Noinco receiver the rest of it is TRW NM parts except the stock.
Originally Posted By Different:
Originally Posted By spankybear:
The best job at machining the M14/M1A receiver. In other words who has the closest to USGI (short of being a machine gun) dimensions? Past or present? I don't care it the receiver is cast or forged or billet
The answer to this question, for semi-automatic only receivers, is Smith Enterprise, Inc. M-14 and M-14 NM investment cast receivers under serial number 001900. Those receivers were manufactured about 1986. The heel will have rounded, not squared, corners and NOT be marked FORGED USA on the operating rod rail. There was a run of billet machined receivers from about serial number 001915 to 002010 or so. After that, the serial numbers are for investment cast receivers. Investment cast receivers over serial number 002010 were given additional finish machining to enhance the aesethetic appeal. However, USGI M14 receivers did not receive such finish work. It's not uncommon to see milling marks on USGI receivers.
State Arsenal 356 produced semi-automatic only M14 receivers have the threaded hole in the barrel ring. That does not affect function or parts interchangeability but it is an obvious difference from the USGI receiver.
These receivers were machined to accommodate Chinese bolts, not USGI dimension bolts. That's a significant difference as compared to the U. S. commercial receivers that are very close clones of USGI M14 receivers.
This!
Ask any of the well known M14 gun plumbers. They well tell you the same thing.
Originally Posted By Different:
Thank you... Going to keep an eye out for and of them SEIs now.
Thanks again!
