Recently, a lengthy article was posted on Ru Forum about American conversions of the M1 Garand into a fully automatic rifle.
It’s quite funny that during the writing of the article, American sources made a number of mistakes that I had to correct 
.
I think I could now suggest some new automatic rifle for the USA.
T23 - this is an early redesign of the M1 Garand by Remington. The rifle has the same 8-round magazine and was created to test a new trigger mechanism. The only visual difference should be the fire selector and an enlarged buttstock.
T 24 - same as T23, but for testing another trigger mechanism. The buttstock must be standard.
T 22 - Automatic version of the M1 Garand from Remington, which used the trigger mechanism from the T23 rifle. It has a rate of fire of 500 rounds per minute, weighs 4.36 kg, and has a removable magazine for 20 rounds.
Option T22 with rod relocated to the left side.
T22E1 - T22 version for testing the new trigger mechanism and barrel pad.
T22E1 modified - improved rifle modified in connection with the requirements of the Artillery Directorate
Winchester prototype rifle number “3” - the rifle has a removable magazine (presumably for 5 rounds), presumably created to test a new trigger mechanism that matches the late Winchester patents. You can compare it with the trigger mechanism of the early Winchester rifle, which I posted above.
Winchester continued to develop their rifle, and on June 21, 1945, a document was compiled listing the changes to their automatic modification of the M1 Garand. A photograph of the rifle was also taken and sent to the Colonel Studler.
Description of the rifle:
As you may have noticed, the document mentions a combined bipod and flash suppressor. Here is a patent from Winchester.
What’s most interesting is that Winchester created a prototype of the M1 Garand automatic rifle chambered in 7.62x51mm after the war. Except for the pistol grip (which became fashionable after the war), the rifle is very similar in description to the rifle from the June 21, 1945 document, especially that flash suppressor bipod! I think the Winchester rifle during WWII was very similar to this post-war rifle, and perhaps visually it differed only in the absence of a pistol grip (since it is not in the June 21, 1945 document).
And one more thing…
T20 which in the US upgrade tree did not have the ability to attach a bayonet!
