I special ordered a 1927A1 from AO sometime around the last ban. I also ordered a horizontal grip, 20, 30 and one 50 round mags. Comments:
-Had no idea the still NIB $100 50-rnd drum mag would be worth almost as much as what I paid for the gun. Should have paid a little more for the 100-rnd but thought it was too big.
-The stick mags look like refinished surplus, with a modification hole drilled along the back spine for the mag release pin.
-The horizontal grip handles well and from what I can tell from early WWII photos, was used with the 1927 finned barrels.
-The stock shape and the way it positions when shouldered takes some getting used too.
-I did have to send it back to the factory to get the trigger assembly adjusted--trigger pull was somehow being inhibited by the bolt assembly.
-The gun is heavy, but so were the originals.
-Barrel length is a bit awkward, but
-Still lots of fun to shoot and a fraction of the cost of the real mccoy.
In GA, there is an indoor range that has a fully auto M1 you can rent. I must say though, that the more modern full auto H&K is easier to shoot.