Expedient Homemade Firearms 3 The 9mm Machine Pistol

Expedient Homemade Firearms Expedient Homemade Firearms: The 9mm Machine Pistol By P.A. Luty (D.F.C) Copyright C.2004 by P. A. Luty. A Home Gunsmith Publication All rights reserved. Anyone attempting to reproduce any part of this publication in any form without the express written permission of the author will be tried, sentenced and shot, (and not necessarily in that order) Direct all enquiries/orders to: www.thehomegunsmith.com Neither the author nor publisher assumes any responsibility for the use or misuse of the information contained in this book. - 2 - Expedient Homemade Firearms Introduction Readers of ‘Expedient Homemade Firearms’ Volume I and II may find the following 9mm Machine Pistol design of interest. The firearm is constructed using similar materials and techniques as those illustrated in my previous books. The following construction drawings will be familiar to readers already conversant with my previous designs. The pistol uses the same design magazine shown in Volume I, though I have included the magazine base plate spring design, shown in Volume II, as a design improvement. I have designed the bolt to be a simple unit easily machined using a lathe, rather than assembling the bolt from the selection of hardware products shown in Volume I and II. In short, I have designed the machine pistol with the slightly more advanced home-gunsmith in mind and to enable relatively simple home workshop construction. - 3 - 1. RECOIL SHIELD BOLT 2. GUIDE WASHER 3. MAINSPRING 4. BOLT - 5. BOLT HANDLE 4 -6. EJECTOR 7. SLING LOOPS 8. BARREL RETAINER SCREW 9. BARREL 10. BARREL COLLAR 11. MAGAZINE WELL 12. MAGAZINE 13. BASE PLATE SPRING Ex14. MAGAZINE CATCH pe15. RETAINER SCREW die16. TRIGGER nt 17. SEAR Ho18. SEAR/TRIGGER SPRING me19. RETAINER SCREW m20. GUIDE RING ad21. GUIDE COLLAR e F22. RECOIL SHIELD irearms Expedient Homemade Firearms MATERIALS REQUIRED TUBING Upper Receiver 40 x 40 x 2.5mm Lower Receiver 25.40 x 25.40 x 2.5mm Magazine Wel 40 x 20 x 2mm Magazine 34.93 x 15.88mm Trigger Group Receiver 20 x 20 x 2mm Barrel 15.00 x 3.00mm SPRING STEEL Magazine Catch 7/16” x 18 Gauge Spring Steel Mainspring 20 Gauge Spring Wire FLAT BAR Trigger Guard 5/8 x 1/8” Flat Bar TOOL STEEL Sear 3/8” Plate Trigger ¼” Plate ROUND BAR Bolt 35mm Dia’. Note: Measurements are supplied in either Metric or Imperial sizes in accordance with the measurements materials are usual y encountered. - 5 - Expedient Homemade Firearms TEMPLATES GRIP INSERT 35 X 16mm TUBE MAGAZINE WELL 40 x 20mm TUBE GRIP 40 X 20mm TUBE SEAR 3/8” TOOL STEEL MAGAZINE CATCH 7/16” x 20g SPRING STEEL TRIGGER GUARD 5/8 x 1/8” FLAT BAR TRIGGER ¼” PLATE - 6 - Expedient Homemade Firearms TEMPLATES LOWER RECEIVER TOP 169mm CUT OUT AND REMOVE SHADED AREAS. HOLE POSITIONS. SIDE The overall length of the template is 169mm. If the template is not 169mm in length when printed, it can be enlarged as necessary using a photocopier, until the above measurement is achieved. - 7 - Expedient Homemade Firearms TEMPLATES TRIGGER GROUP RECEIVER (Hole diameters not to scale) TOP 128mm CUT OUT AND REMOVE SHADED AREAS. SIDE BOTTOM - 8 - Expedient Homemade Firearms MAGAZINE TEMPLATE 34.93 x 15.88 x 1.6mm Tube. See ‘Volume One’ for mainspring and follower construction. TELAPME9 -1/8” TERAERSIDE Cut Slot 1 – 1.5mm TEMPLATE deep to accept base plate spring retainer. Drill Hole: 1 – 1.5mm. - 9 - Upper Receiver Recess Positions. 16 ¼” length of 40 x 40 x 2.5mm tubing (Al measurements in mil imeters) - 10 - Expedient Homemade Firearms