'28 Actuator Slot
Posted 09 December 2004 - 09:04 PM
Posted 09 December 2004 - 09:17 PM
Colt 1921/28 TSMG's had square actuator front slots on the receivers from serial number 40 through 3500, or there abouts. The round slots then continued for the remaining 11,500. The WWII TSMG's also had the round slots.
Posted 09 December 2004 - 09:41 PM
Thanks for the response- I was actually asking about the edge of the slot itself all the way around, not the front edge. Should this edge be sharply defined in an original finish gun or were there also military '28's with actuator slot edges that were more contoured like the Arm. Serv. NAC Thompson (Look at the rear circular cutout at the back of the slot on the top view-example of a contoured edge-)
Posted 09 December 2004 - 10:48 PM
Posted 10 December 2004 - 08:55 AM
As in all things, exceptions will be found.
Posted 10 December 2004 - 10:08 AM
My 1928A1 has uniformly rounded edges to the actuator slot that appear to be machined that way,rather than due to wear.The rounding is both on the inside and outside surfaces of the slot.