A ‘might have been’ M-16 Rifle development
The M16 rifle had been a mainstay of the US infantryman for the best part of three decades. Developed from the Armalite AR-15 – itself in turn a redevelopment of the Armalite AR-10. Whilst a good rifle for its day, the normal infantry squad was always looking for more firepower, but from a lighter weapon. With this in mind, the designer of the AR-10, Eugene Stoner, took the idea of giving his new rifle more firepower from a chute feed system.
The chute feed system was not a new concept. It had been used on the .50 calibre waist gunner positions of the B-17 Flying Fortress during WWII. It was primarily designed for heavy machine guns rather than lighter squad weapons like the .303 calibre Browning then in use. This weapon was a standard belt fed machine gun but Stoner thought if his new rifle could give more firepower from its lighter weight, he would be onto a winner. He therefore set about redeveloping his own design from a standard box feed rifle, into a chute feed squad weapon. An adaptor was designed to fit on to the side of the AR-10, along with a bi-pod for greater stability when in use. The bullets would be fed down the chute from a magazine box carried on the back of the soldier.
Extensive testing with various sizes of cartridge, ranging from .223 inch (5.56mm) to 7.62mm (0.3 inch) proved promising, but the US Army didn’t seem interested and the idea fizzled out. Undeterred by this lack of interest Stoner moved to firstly to Colt and then onto Cadillac Gage, where he designed a modular weapons system, designated the Stoner 63. This system was configured to be a standard automatic rifle but, with slight changes, could be transformed into a light machine gun, a medium machine gun, or a solenoid-fired fixed machine gun for use on vehicles.
Some ideas for wargamers and modellers
As I can find no data regarding rates of fire or wear and tear on the barrel from sustained use, I suggest you use data based upon the Browning .303, if you wish to incorporate this weapon into your armies. As for modelling this weapon in the usual 10, 20 and 25mm ‘scales’, it should be fairly easy to convert a standard M16 armed figure. As you can see from the photos a simple bi-pod made from a folded paperclip glued to the front of the rifle should suffice. The back-pack ammunition box could be made from a converted Browning .303 ammunition box, but the chute feed system might prove a bit more tricky. One suggestion is to use an elastic band, cut to length and sprayed either with a primer, or dipped in diluted white glue, to add some strength. Another suggestion would be to use a laminate of wine bottle type foil caps and bend until you get the desired curves for the chute. Whichever way you do it, I hope this article has given you a new idea for a squad based weapon for use in your M16 armed forces.
Article by Grant Parkin.