Original Item: Only One Available. This is a training rifle and it is impossible to convert it into a live round firing weapon. The M14 is completely solid with no moving parts. These trainers, affectionately referred to as “rubber ducks” in the United States Armed Services, were designed to withstand harsh conditions and to take a beating. After personally using one just like this in the Marine Corps, I can vouch for it feeling just like the real thing. The government didn’t want to risk damaging or losing actual service weapons, so they produced exact copies from actual M14s. Normally, they would use real barrels, sling swivels and receivers. They would then cast these components in a resin/rubber coating, hence the name rubber duck. This M14 has a metal inner structure, but no metal visible or present on the outside. These rifles could now be swam with, dropped from helicopters, thrown off roofs etc and still be fine to train with. So don’t be surprised when you do come across one of these and it's a little beat up, just know that it helped in the training of young service men and women.
 
This rubber duck does show signs of being heavily used, but there is no extensive damage done to it. There are no markings present, which was very common for these hastily made training aides.
 
This is a beautiful example of a world famous type of rifle, the
M14 “Battle Rifle”. This would be great for any static display or for Vietnam War reenactors!
 
More on the Rubber Ducks
In the United States military, a rubber duck, or "rubber ducky", or "Blue Gun", or "Red Gun" is a non-functional training weapon that is fully or partially made of rubber or plastic. They are usually M16 rifles, and are commonly used in basic training.Trainees are issued rubber ducks to add realism to training without the dangers and maintenance inherent to real firearms. Some JROTC units also use rubber ducks for PT.
 
For example, rubber ducks are sometimes issued to troops before they have been properly trained to use actual rifles in order to become familiar with basic care, and responsible handling. Other times rubber ducks are issued as a time saver, where proper long-term care of a real firearm would distract from the main training focus, such as tactical combat casualty care training, or land navigation. Rubber ducks are also used where there is a disconnect between safety in the field versus in garrison. During bayonet drills, discharging a weapon against an opponent is to be avoided, whereas in the field discharging the weapon during a bayonet fight is often the goal. And in various ceremonial practices using a rifle capable of firing would serve no purpose.
 
Some rubber ducks are made by filling and coating an actual decommissioned M16 rifle with rubber or plastic. Some are also made using decommissioned rifle parts, with rubber or plastic used for the other parts. Still others are made entirely of rubber or plastic that has been molded to resemble both the exact shape and weight of a rifle.
 
Rubber duck use is being phased out in some areas of the Armed Forces, namely in Air Force Basic Training. They were replaced with M16 replica Drill purpose rifles: metal models that resemble M16 rifles, including most internal parts, but that lack the ability to fire. The replicas allow soldiers to learn disassembly and reassembly of their rifles much earlier in their training.
 
M14 Rifle
The M14 rifle, officially the United States Rifle, Caliber 7.62 mm, M14, is an American selective fire battle rifle that fires 7.62×51mm NATO (.308 in) ammunition. It became the standard-issue rifle for the U.S. military in 1959 replacing the M1 Garand rifle in the U.S. Army by 1958 and the U.S. Marine Corps by 1965 until being replaced by the M16 rifle beginning in 1968. The M14 was used by U.S. Army, Navy, and Marine Corps for basic and advanced individual training (AIT) from the mid-1960s to the early 1970s.
 
The M14 was the last American battle rifle issued in quantity to U.S. military personnel. It was replaced by the M16 assault rifle, a lighter weapon using a smaller caliber intermediate cartridge. The M14 rifle remains in limited service in all branches of the U.S. military, with variants used as sniper and designated marksman rifles, accurized competition weapons, and ceremonial weapons by honor guards, color guards, drill teams and ceremonial guards. Civilian semi-automatic models are used for hunting, plinking, target shooting, and shooting competitions.

The M14 is the basis for the M21 and M25 sniper rifles which were largely replaced by the M24 Sniper Weapon System. A new variant of the M14, the Mk 14 Enhanced Battle Rifle (EBR), has been in service since 2002.