M14 stock modding diary

Starscream

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Location
Southern Alberta
Project: Restore

Objective: To collimate the knowledge of restore M14 USGI synthetics and keep track of my own M14 USGI restoration project. What I want to achieve finally is diary/blog of what I have done to accomplish this feat whilst gathering the collective knowledge of what has been said on the forums on M14 stocks. I’ll post up pictures as a I go along and take them during the project.

I also know it’s really hard to read right now, since I’m writing it at like 4:00am when I should be sleeping (chronic insomnia). I promise to clean it up as I go along.



Stage 1) Identify and plan.
Purchasing an M14 USGI stock for $124, I examined it thoroughly and identified the locations that require attention. There are a few points that will need addressing before the final coat can go on.

a) A small crack in the forearm of the stock near the op rod notch that goes through to the interior of the stock. While probably more cosmetic, I’d be a ton happier if I could reinforce this area so that wouldn’t be a problem in the future.
Plan: At the moment the easiest recourse would be to try and put a bit of JB weld into the crack. Second easiest would be go dremel a small channel along the cut a 1mm deep channel and fill with JB weld on the interior. Last ditch drastic measure would be to break off the broken piece and restore with Bondo fibreglass resin.


b) Front sling attachment point completely rusted. It’s old, and ugly and must go.
Plan: Drill out the rivets and remove the old sling attachment. Looking at replacing with a Harris 2A sling attachment point onto the rearward hold and filling the front hole. Alternatively looking at placing a small 1913 universal picitanny railing.



c) Backside of the stock uneven and railing is slightly broken.
Plan: Dremel off the other side to make it cosmetically symmetrical.


d) The trigger mechanism does not fit into the lug of the receiver, as in the receiver and trigger housing will fit but the trigger guard will not close. Suspect that the receiver sits too high in the stock.
Plan: Unsure at this time, only way to rectify would be to shave off a few millimetres off the back of the stock to lower it and allow the receiver to sit lower. Suggestions would be most welcome here.


e) Forearm of the stock to be interior reinforced with Bondo to give better structural reinforcement. Will definitely do on inside, contemplating doing on outside and forgo attempting to repair the crack and instead simply reinforce it.
Ref: http://www.canadiangunnutz.com/forum/showthread.php?t=94299

f) Filling the notch selector and building up the area to retain the op road spring guide pin.
Ref: http://www.canadiangunnutz.com/forum/showthread.php?t=38722

g) Sand blasting the entire stock to remove the old chipped paint and give the final finish a good gripping surface.

h) Final painting, ideally with either Duracoat or Armacoat. Leaning towards Armacoat due to easy access from TSE rather then having to mail order.

i) Assembly of the norc butt stock hardware. Component needed as said by hungry:
Yeah, the Norc M14 buttplate is nearly identical to the USGI M14 baby. Even I have a hard time telling the difference. :D

When switching to a glass stock from the balsa wood kommunist toxic oil stock, you cannot use the wood screw that secures the buttplate to the wood stock. The buttstock sling swivel is secured to the lower buttplate screw, that does not change from wood stock to glass stock to wood stock. The upper buttplate screw however (is a wood screw) must be replaced with an original machined nut and bolt ($ 9.99 from Numrich Gun Parts) or you can go to Home Depot and buy a # 8 x 2.0" x 32 tpi which happens to be almost the exact same diam and pitch to the USGI glass stock upper buttplate screw.

Remember that is you don't buy USGI parts, yer #### will fall off! :eek:

(inside joke in my clinics) :rolleyes:

Peace be to journey,
Barney







Costs incurred:
M14 USGI Stock: $124
 
"d) The trigger mechanism does not fit into the lug of the receiver, as in the receiver and trigger housing will fit but the trigger guard will not close. Suspect that the receiver sits too high in the stock.
Plan: Unsure at this time, only way to rectify would be to shave off a few millimetres off the back of the stock to lower it and allow the receiver to sit lower. Suggestions would be most welcome here."

This problem has to be addressed as it could lead to bigger trouble. It seems that the fit of the trigger group to receiver is crucial and if not done or done incorrectly can cause the hammer to follow the bolt which is not good. There is a check to see (or hear) if you have a problem(see m305 faq). I'll be fitting my fiberglass stock soon too. Cheers
 
the adjustment is made to the trigger bearing pads, in 3 locations
DO not remove material from the receiver bearing surface planes to achieve trigger lock up. I do this every day...... matter of fact...... I'm looking at a wall of stocks hehehe all prepped for modification
 
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