M14 Forum banner

Preban 80's ridged receiver and Archangel installation options?

1228 Views 10 Replies 8 Participants Last post by  jbrooks
I've been toying with the idea of installing the Archangel stock on a pre-ban M1A with the dreaded receiver ridge on the right side. For those who have taken the challenge, was it worth the trouble? Did you trim the stock to fit or did you bed the receiver to the stock? Were you still able to fit the trigger assembly without having to shim it if you did trim the stock? Any pictures of the work? I checked many posts but couldn't find any good information with fitting this specific stock on the ridged receiver.
1 - 11 of 11 Posts
I haven'd done it on an Archangel stock, but if you inlet just the ridge area, it will not cause the receiver to set any lower in the Archangel than in any other stock. The only Archangel I have had, I received with a rifle built on an Armscorp receiver. I sold the stock with a SAI rifle in it. It had material removed from the trigger pad areas from a previous owner and both locked up tight. From what I understand the stocks are made so that most of the time material must be removed to achieve trigger group lock-up, so you should be fine.
I was having trouble fitting my receiver in unmodified stocks, so I just had a machinist friend remove the extra metal on the underside of the receiver. Many of us have done it with no ill effects.

Here is the 'after' pic. Cold blue was used on the newly exposed metal.

See less See more
I bet those receivers with the ridge wind up becoming the most collectable in a hundred years.
I fit two of them to GI wood stocks. After clearancing the stock and top of one liner leg for the ridge, the heels still did not sit on the stock. I had to file the front receiver bearing surfaces of the stock from the rear of the boltstop relief on the stock forward on both sides. I stayed with the bevel of the wood and used metal files to slowly work both sides down evenly, checking as I went. Just relieving for the ridge behind the receiver leg won't do it completely. The bearing surfaces on the underside are not to exact M14 spec. One was a 029xxx range and the other was 032xxx range.
I imagine the archangel will not fit in a similar fashion. Both receiver/stock combinations then required shimming of the triggergroup pads and rear tail to achieve good lockup resistance and hammer/bolt geometry.
Good luck. GI2
Don't modify the receiver for an archangel. That stock is mediocre at best. I have one and it's really comfy but I would grind up the stock before any steel.
  • Like
Reactions: 1
Don't modify the receiver for an archangel. That stock is mediocre at best. I have one and it's really comfy but I would grind up the stock before any steel.
Definitely. GI2 I did all work to the wood.
For my edification... is this ridge similar to the angled ridge on Polytech receivers, on the right side under the op rod raceway?

Thanks,

JWB
Receiver on the right has the ridge
  • Like
Reactions: 1
JB
Can't find my old pictures, but in this thread (the link) there are good pictures from Sick Slick.

http://m14forum.com/m14/20313-why-different-cut-sa-receivers.html
  • Like
Reactions: 1
Receiver on the right has the ridge

JB
Can't find my old pictures, but in this thread (the link) there are good pictures from Sick Slick.

http://m14forum.com/m14/20313-why-different-cut-sa-receivers.html
Thanks, Guys,

Yes, my Poly is identical to the early stepped SAIs... no clue why.

Interesting.

JWB
1 - 11 of 11 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top