Original U.S. Colt M4 AR-15 "Rubber Duck" All Rubber Molded Training Carbine - 34" long U.S. Artwork & Posters Also included are the operating

Also included are the operating spring

In June 1942

the barrel tang has a second tang screw hole added directly in front of the original

triggerguard and butt strap

with heavily rifled barrels

Original U.S. Colt M4 AR-15 "Rubber Duck" All Rubber Molded Training Carbine - 34" long U.S. Artwork & Posters Also included are the operatingOriginal Item: Only One Available. This is a very nice Colt Early Pattern M4 AR 15 Military & Police issue non functional RUBBER DUCK training and parade rifle. Unlike the usual ones we see, this example is made entirely from molded hard rubber resin, so there are no original parts used in the construction. The military calls these rifles Rubber Ducks. This is an actual military or police issue trainer designed to be the correct weight and size of an