to funny..... yes.... lot's of internet "experts" out there......
Isreal aquired near 250,000 surplus m14 rifles (iirc)
in the mid 60's , the u.s. made "sniper" versions of the National Match m14 by adding a mount and scope to the original design. The Leatherwood mount came out of fort benning georgia. Lt. Leather wood's original version was the ART TEL (AKA ART1) and utilized a a Redfield3-9x accu range optic.
development of the m14 sniper continued to 1972, when the sniper versionwas dubbed M21. At this point in time, the second Leatherwood offering became issue on the u.s. sniper M21, this mount was the ART 2 and again a 3-9x with exterior cam was standard issue.
Between the years of 1986 to 1988 , it is said the most advanced sniper version was done up by Brooksfield Precision Tool with collaboration with the U.S. Army 10th special forces Group, Fort Devens, Mass. This version dubbed the XM25 was built with a medium match non chrome barrel, 'BPT' gas piston, scope mount , spring guide and a harris bipod. U.s. Special Forces chose the Leoupold 10x M3A scope, Navy Seals prefered the B&L 10x tac1 scope.
To the best of my knowledge...... isreal took the quantity of rifles they were "gifted" from the U.S.
Of these rifles, parts were guaged, and rifles were built. ALL m14 rifles that were assembled from these parts were considered to be snipers. They were built for no other purpose. ALL m14 rifles brought into canada "as complete rifles" from isreal through various importers can safely be assumed to BE the isreali standard for the m14 sniper rifle. However, many parts kits were also imported in the 80's and these bear no isreali arsenal stamps.
These rifles can consist of a mix of manufactures, to complete NM versions with all the same manufacturer parts. many of the rifles sent to isreal were from Navy match shooters arsenals.... lots of them.....
Many of the Ca 12(3) m14 rifles in canada have an electro penciled number on the bolt. In most cases, this number was applied in the U.S. , by the original unit they were requisitioned to.
There are Isreali arsenal markings on all of the rifles that the isreali's actually assembled. I have handled many isreali refurbs, some have NM usgi barrels , some do not. Some have match sights, some do not......The Isrealis were not concerned with the U.S. standards..... they wanted to put these rifles to gether to thier own. So parts were mixed and matched to build these excellent rifles.
Some of you guys, with these kinds of "deep" questions on the M14 history should get yerself aquainted with a fellow named "Different" here on the net........ He IS the authoritive "Holy One" of the M14 and the entire history of this Isreali M14 mystique is covered extensively in his writings.
I could sit here and quote Scott Duff all night as I have above....... but i don't wanna be mistaken for one of those internet know it all experts I keep hearing about
And for those who might ask..... for a barrel to be given an NM stamp..... located generally on top of the barrel between the gas assembly and the flash hider, has nothing to do with being isreali, chrome lined ..... or anything like that.
The NM stamp is only applied to a barrel that passes ALL of the guageing process to show that it is 99.99999 % bang on blue print and that for it's entire length, the bore and chamber are concentric with the external dimension.
An NM part, is a part that adheres to the strictest tolerances of the blue printed design.