reconbob Posted January 1 Report Share Posted January 1 (edited) Looking for an original M1921 Colt actuator. Not going to use it in a gun. For engineering purposes. Must have at least one side of the cocking knob (so one with one side broken off OK) intact. If you can help me email me at Philaord@aol.com. Thanks Bob/Phila Ord Edited January 1 by reconbob Link to comment Share on other sites More sharing options...
benedw60 Posted January 2 Report Share Posted January 2 (edited) Back in 2018 we reversed engineered a 1921 actuator, we added more material on the thin crossed section to beef it up. We got the model 3d printed out of metal and you ran a mag or 2 through it and it tested fine. You should have the drawings, models and notes from that project. Edited January 2 by benedw60 Link to comment Share on other sites More sharing options...
reconbob Posted January 2 Author Report Share Posted January 2 Hi Ed - I have many drawings and 3D models that you did for me back in the day, and some of them for the blank gun - barrel, bolt, grip mount - we had 3D printed in plastic. I can't find any such drawing or modeling for a M1921 actuator, and I don't remember getting any part 3D printed out of metal, let alone a M1921 actuator. But even if we did I need to check the knurling, and you can't 3D print knurling. I have Colt drawings, Doug Richardson drawings, and another 3rd party drawing and they are all different. So I am still in need of an actuator. Bob Link to comment Share on other sites More sharing options...
robbo Posted January 13 Report Share Posted January 13 Bob I have one I could part with. Call me to discuss. PM sent with ph number 1 Link to comment Share on other sites More sharing options...
reconbob Posted January 23 Author Report Share Posted January 23 Many thanks to all those who offered to assist. Someone has sent me an actuator to photograph and measure. Thank you again! Bob/Phila Ord Link to comment Share on other sites More sharing options...
Countryboy77 Posted January 23 Report Share Posted January 23 (edited) It would be nice if you put together 1921 kits with repro actuator and recoil spring/ buffer assembly so those with 1928 could run like their Daddy.Wishlist. Edited January 23 by Countryboy77 1 Link to comment Share on other sites More sharing options...
anjong-ni Posted January 24 Report Share Posted January 24 Is it too soon to ask "When they'll be done?"... Phil Link to comment Share on other sites More sharing options...
reconbob Posted January 24 Author Report Share Posted January 24 Yes, it is too soon. I am doing some dummy/display M1921 actuator knobs now to get the knurling and pear shaped slot correct. Then I will move on to M1928 actuators, then when that is right, the 28's can be machined down to the thin M1921. As an aside, Doug's actuators which were probably a 9.5 out of 10 in terms of quality, fit, and finish, were not made by Doug. He had two different machine shops out in LA make them for him. After Doug passed away and I found this info in his papers, i contacted both shops to see if they would do another run. The first place the guy that did them had passed away. The second shop remembered the job and said never again. Bob 2 Link to comment Share on other sites More sharing options...
TennesseeTaylor95 Posted January 25 Report Share Posted January 25 I am excited to hear that you're making another run of display actuator knobs, especially for the M1921. I've been holding off on putting together a M1921A display gun for this very reason. Let us know when they're done and I'll place an order for one as well as another one of your M1921 display receivers. Link to comment Share on other sites More sharing options...
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