This is a discussion on Research: M14 flappered butt plate types within the Reference forums, part of the M14 M1A Forum category; I think people are getting confused w/ steel and aluminum.
The actual Buttplate and Trap-Door are made out of aluminum and were anodized.
The Flapper ...
Just to clarify the plungers. The earliest buttplates (no flapper) were standard Garand. The Garand buttplate had no locking device on the door. It used a rear plunger which was under spring tension. The M14 buttplate had a door lock (front) which must be depressed to open. This design had both a rear tension plunger and the lock.
It has been about 25 years since I disassembled an M14 buttplate so my memory is clouded. If I recall the ball bearing is under spring pressure and keeps the flapper in the opened and closed positions. I guess I never disassembled one with a plunger. NEW INFORMATION thank you guys.
Naturally the ball bearing would not be present in the early Garand buttplates without the flapper.
Ditto to what Lex_Ordo posted.
Last edited by Bill Ricca; October 18th, 2005 at 07:15 AM.
What we are witnessing is the beginning of an area of research that has not been done before. Although it is new and possibly confusion, in a few years it will be part of the knowledge base of buttplates and understandable. My hat is off to all who contribute.
Questions for R4 fan on the buttplate without the door lock:
Does the door remain closed or is it loose?
Could you use a magnet to see if the door is steel of aluminum?
I am trying to determine if the lock is just missing. If there is a cavity where the lock belongs, I suspect that is the case. The Garand had a long plunger that was the whole width of the door. But the Garand's door was steel.
Heres what I have ,the one on the left is marked KMT and is on a H&R marked walnut stock,The one on the right is unmarked and is on a birch stock that has this marking under trapdoor.
Dont see much difference in these two exept the dimples are smaller on the right one.
IRON WORKER, left to right, you have Types 2C and 2D flappered butt plates. So, KMT made Type 2C for sure. Cool. Also, the photo of the stock marking shows it to be made by Sykes Manufacturing. They made replacement M14 stocks for the USGI Springfield Armory.
This Butt Plate is steel with an aluminum trap door. The door has a latch. Ther are 2 raised dimples on the flapper and a hole on one side of the butt plate. Note the grinding marks on the butt plate. Is this a Chinese butt plate or G.I.? This was on a refinished G.I. stock I bought from Numrich Arms in 1994.
I have 13 of those buttplates which I am returning to the person I bought them from. I believe that they are all chinese. I have some with worse grinding marks. I'll see if I can take some photos before I ship them all back.