M14 Forum

leonardc · February 22nd, 2012, 04:09 PM

Noting that I am not a professional at measuring metal objects and my caliper is not calibrated by some lab and being aware that there are curves and angles involved:

The heel is in the back, the sights are on top. I measured some distances on my right receiver legs. #1 is the height (I think Gus refers to this as the length) of the leg from the center bottom until it meets the flat of the receiver. #2 is the length (front to back)of the leg close to the bottom just above the radius. #2A is the length of the leg (front to back) of the leg just below the slot where the trigger group locks in. #3 is the width across both legs on the outside of the bottom about in the middle.

7.62 #1 1.194 #2 0.815 #2A 0.8655 #3 1.2605

Armscorp #1 1.224 #2 0.8655 #2A 0.871 #3 1.261

LRB #1 1.179 #2 0.839 #2A 0.862 #3 1.258

Both the 7.62 and the LRB have holes (a single hole each) drilled in the leg, the Armscorp does not have a hole.

Lazerus2000 · February 22nd, 2012, 09:45 PM

Leonard,
thanks for the information.
Seems to be quite a spread in leg length there.
But usually, there is some extra space at the bottom of the recoil bearing surfaces for clearance. How well the tapered legs lock up into the tapered recoil surfaces is more critical.

PS: as soon as I've done some CQB test shooting with our next-to-last prototype alloy stock,
I have permission to chop it into a "receiver test fit tool", and send it down to you to try your receivers in out CNC bedding surfaces.

We'd like you to try the fit of the various receivers by themselves, then the trigger guards, and most important, how much trigger guard tension the two M14 pieces need to mate into the alloy stock, and how well they fit.

Hopefully they WILL fit in,
with no more than a bit of "gentle persuasion" from your pal,
Mr. Big Rubber Mallet.

PPS: These stocks are set up for the SHORT commercial length connector pin, and are not clearanced for the longer GI FULL AUTO connector pins.

Contact me by Email with your shipping address,
and we can continue this conversation privately.

PPPS: would you prefer a FREE M14.CA scope mount,
or a discount on the purchase price of one of our stocks when they come to market??

thanks for your help,
and OBVIOUSLY,
if you are Ex-military,
you didn't listen too well when the DI tried to teach you
NEVER TO VOLUNTEER!!
[;)
thanks again,
LAZ 1

leonardc · February 23rd, 2012, 04:10 PM

LAZ: PM with shipping info sent. I am happy to help, nothing is expected. I won't be doing too much "pounding" to get things to fit. I have to pay for what I break.

GUS: back on track. How do you relieve the inside back of a FG stock so a Armscorp receiver will fit? Is this a "hog it out and fill it in with glass" deal? And once you've glassed it in to fit, does the rifle then rotate in to fit?

Gus Fisher · February 24th, 2012, 11:15 AM

Quote:

Originally Posted by leonardc

LAZ: GUS: back on track. How do you relieve the inside back of a FG stock so a Armscorp receiver will fit? Is this a "hog it out and fill it in with glass" deal? And once you've glassed it in to fit, does the rifle then rotate in to fit?

Armscorps receivers are noticeable for having very sharply angled bedding surfaces on the front part of the receiver. That makes them more complicated to prepare. I usually find you have to take most off the top of the stock in sort of " the middle area" to get it down to where the trigger guard will even close.

Have you tried using grease on the receiver bedding surfaces to show you where you have to remove material? Actually, it was with Armscorps receivers that needed it so much, that lead to me using that procedure on all semi auto M14 receivers. I do more filing than hogging out the stock and the receiver goes in and out of the stock many times before it sits correctly by where the grease transfers on the stock.

Gus Fisher · February 29th, 2012, 08:10 AM

Dang nab it, I forgot something! (I'm studying hard to be an old codger and I am practicing using Old Codger termnology. Grin.)

When I am ONLY glass bedding the heel of the receiver, I do NOT use a coat hanger to get added tension between the stock ferrule and front band. The reason I don't is because that would raise the front part of the receiver slightly above the stock and effectively wipe out some of the fit in those bedding areas.

HOWEVER, I DO use a coat hanger when glass bedding the ENTIRE top surface of the stock because then the whole bedded area will be properly aligned for tension on the ferrule to front band and the bedding surfaces will be tight on the receiver.