So, what happened to the M21s that were there? Possibly still there for all I know. Guy I spoke to in 2005 said that they were completely reconditioned as M21s, not M14s.
I think there is a lot of confusion about what is a
true M21 - versus a rack-grade M14 that has been fitted with an optic, that is lazily called an 'M21' by uninformed observers, but technically isn't the same rifle. The M21s had a separate NSN number, and were built to a very specific standard configuration based on the 1968 AMU M14 National Match build guide, which was revised a few times in the 1970s. I think 1984 was the final update. This included a time-consuming process of glass bedding the action in a wood stock, fitting a NM barrel, trigger job, NM sights, unitizing the gas cylinder, reaming the flash hider to NM spec, etc. I doubt Anniston had M21s in its inventory back in 2005, but it does have about 1,000 of the old National Match M14 rifles (they do not have optics).
The original optic on the XM21 circa September 1969 was the 3-9x AR TEL scopes, which were replaced in 1981-82 with the 3-9x ART II scopes that also had an improved scope mount. My understanding is that all M21's were recalled in the early-to-mid 1990s and their optic systems were removed. Many of the rifles were de-milled as obsolete, or put into storage. Fortunately, the hundreds of original AR TEL scopes (circa 1969-1981) and the later ART II scopes (used circa 1982-1992/3ish) - were transferred by the Army to DCM in the early to mid 1990s - and subsequently sold-off by DCM in 1995-96 for relatively low prices. That is where mine came from, and pretty much all of the military AR TEL and ART II scopes on the market came out of the DCM (now CMP) sales from the mid-1990s. Thus, it was not possible for Anniston to have built two thousand 'M21s' in the 200Xs -
as they no longer had the old ART II scopes used on the M21. These liquidated scopes are all pre-Mil-Dot, but current training doctrine is of course built around the Mil-Dot reticle. Here's my former M21 ART II scope, with case and DCM receipt from 1995.
Brief History: During 1969, Project ENSURE 240 authorized "up to 1600" XM21 sniper rifle systems to be made at Rock Island Arsenal, with the vast majority being deployed to Vietnam by 1971. The XM21 became the M21 as the ‘Standard A’ in 1972, and remained the standard US Army sniper rifle until 1988, at which point it was formally replaced with the M24 SWS. The M14/M21 was then considered end of life and they were de-milled or went into long-term storage shortly after Operation Desert Storm (circa 1991). Here's a sample poster of the M21 build, which included a reduced headspace value compared to the standard M14, the various bedding instructions, and the build process included the "M14" part of the heel to be grinded away and re-stamped/engraved "M21" to denote the change to the rifle's nomenclature (and it thereby got a new NSN: 1005-00-170-0300). A special U.S.Army training program existed back in the day for building accurized National Match M14 & M21 sniper rifles.
With a few exceptions, the M14s sent to Iraq as ad hoc SDM rifles in the 200Xs were rack-grade M14s (with standard NSN: 1005-00-678-9829) that had either the flimsy brown fiberglass stock, or a generic wood stock. These non-accurized M14s were pressed into service and fitted with a wide variety of odd-ball optics and odd-ball scope mounts. They came with only 1 magazine, and unlike the old M21 sniper rifles from the 1970-80s, they were
not glass bedded in a heavy profile wood stock, did not come with a NM barrel, or NM sights, a tuned trigger, NM spec unitized gas cylinder, a NM spec op rod guide, or a NM reamed flash hider etc.
The only documented report that I am aware of regarding 'true M21s' that still had their original AR TEL and ART II scopes being sent to Iraq in 2004 came out of Ft Bragg, NC, reportedly from a US Army SF unit. (Source: Lee Emerson's reference book,
M14 Rifle History and Development, Vol 1). They apparently had a very few in storage, or had kept a few for training/familiarity purposes, that were somehow not turned-in during the early 1990s per Army orders. Theses old M21 scopes lack Mil-Dot reticles that had been the standard used by the US Army since 1988 for sniper rifles, and thus it was very antiquated by 2004 training standards.
Per Army regulations, M21s were replaced with the M24 back in 1988 and I doubt any M21s were technically built as they were no longer a procurable "Standard A" item within the U.S. Army, but they did soldier on for a few more years, esp in National Guard units during Operation Desert Storm. However, a very small number of M14s that included a few M14 receivers that had been engraved "M21" were rebuilt by Smith Enterprises in the 2005-2007 period. They were initially called M14 SEI rifles (aka 'Crazy Horse' M14), but were later classified as an M21A5. Here's the link re my replica of that variant:
Recently completed replica of a U.S. Army M14SE Squad-Designated Marksman (SDM) rifle, which was later designated as an M21A5 rifle (or informally referred to as an “M14SE Crazy Horse” rifle). I just got the barreled action w/ trigger group back from Smith Enterprise Inc (SEI). For anyone...
www.snipershide.com
There is also the unusual M14 sniper rifle built by some US Special Forces units during the late 1980s/early 1990s known as the XM25 or M25 rifle, and that deserves it's own thread. Here's my replica and brief history:
My replica of a U.S. Army XM25 sniper rifle project that began in the summer of 2017 is now basically complete. I just got it back from the builder, so I don’t have a range report yet, but here are some pictures and info for those interested in this type of retro-project. BRIEF HISTORY: From...
www.snipershide.com
If anyone is interested in the full history of the 'Post-M21' period (circa post-1988), here's a long link on this subject.
For anyone interested, this summer I did some research/outreach re some of the "post M21" type sniper and DMR rifles used by the U.S. military, and decided to write-up a quick chronological history of these various M14-based sniper or DMR rifles that were used by the US military from the late...
www.snipershide.com