i purchased one of the gsg 1911 pistols.for the money it is very close to the colt sreries 80 1911.since i love to work with guns i made a few changes,i changed the thumb safety,hammer spring housing,colt sear spring and barrel bushing(later models have a new ss bushing)i also had dark walnut grips so i added these.after all was done the trigger pull went from 5lbs. to 3lbs. well last night a fellow member & i took the 1911 to our local range inside and fired about 250 federal 22's.and what apleasure,not one jam,feed problem or stove pipe.we fired at 30ft,50ft.&25yds.at the shorter range we both put them in about 4"and 25yd we hit the target abt 6".for two old farts in our 80's we had a ball and it was sweet to shoot.at the end my friend said let me put in 8 bullets and fire at fast rate to see if it will jam up,it sounded like a machine gun and not a problem,so if it was a45 look what we would spend for bullets abd not as much fun. whiz630