BSP 9MM SMG PDF

Bev Fitchett's Guns. The weapon shown in the following document has not been built and is therefore a prototype design only. The following design drawings illustrate the construction of a 9mm submachine gun utilizing off the shelf 'British Standard Pipe' BSP Fittings. BSP fittings, commonly known as 'Malleable Iron Fittings', are readily available from most good trade plumbing outlets. Because this BSP machine gun design uses some of the same components seen in 'Expedient Homemade Firearms' Volume I, I have not discussed their manufacture again here, for fear of boring the reader, and myself. The magazine and magazine well being two examples.

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Expedient Homemade Firearms. Internal Components. Hole Diameters Arrowed. Hole diameters shown in millimetres. Each plate is identical. Each side - plate is cut from a length of 2. To create the lower receiver assembly, the two receiver side - plates are joined together by spacing them between two 6mm studding connectors, A and B.

Four dome head ca p screws are then screwed into the connectors and thoroughly tightened, effectively holding the assembly together. The two connectors must be exactly 20mm in length. As bought, 6mm connectors are usually this exact length, but if they are not, they may be trimmed on a lathe until the required length is achieved. A gap of 2mm should now exist betw een the plate and the end of the receiver. The lower receiver template is attached to a section of 2.

Two receiver side - plates are required. Two studding connectors are used to hold the side - plates together. It must be ensured before welding that the top edge of the well is 7mm above the top edge of the receiver. The grip is the next part to make. It is made from a mm length of 40 x 20mm tubing. Before the grip is fixed to the receiver the sear must be made and fitted. See page 8. Pin must protrude 6mm from each side of trigger.

Rear View. A 4mm diameter dowel pin a spring pin could be used as a substitute is tapped into the 3. The pin must protrude 6mm from each side of the trigger when fitted. Before the sear is fitted, a slot is cut through the rear and front of the grip wall. The slot is 15mm deep and 4mm wide. The sear is inserted into this slot and retained with a 6mm diameter dowel pin.

This pin should be 20mm in length. The magazine catch is bolted to the front of the receiver using a 6mm diameter dome head socket s c r e w. The grip and sear assembly is in serted into the receiver and retained with two dowel pins. Note: It is very important that the top edge of the grip is positioned 2. The template is attached to the upper receiver tube to allow the necessary recesses to be marked onto the tube.

The BSP nipple, socket, and lock nut assembly are screwed into the reducer. The assembly is then thoroughly tightened. The barrel tube is inserted into the BSP barrel assembly. Screwing the barrel assembly onto the upper receiver. The bolt is machined to the following dimensions from a suitable section of round steel stock.

The buffer is made from a section of hard rubber stock to the following dimensions. An alternative to machining the SMG bolt would be to assemble it from the components illustrated below. The components are fitted to the 8mm bolt section as shown below. The end of the bolt section being fitted with the firing pin prior to this. Around 52 washers are necessary to provide the bolt with the required length and weight. After placing the bolt into the upper receiver, the mainspring can be inserted, followed by screwing on the BSP cap.

Drill two 2mm diameter holes through the Magazine body and cap to retain the cap in position. As a design improvement i have added a plastic tube cap, retained with two pins, to act as the magazine base plate. Slide washers onto tube. Either way, the stack of washers must result in a combined length of 4 — 5mm.

The selector switch is rotated either clockwise or anti-clockwise to allow the stock to be extended or closed; in just the same manner as if undoing a nut or bolt! The butt plate is welded or brazed to the stock tube. Braze or Weld. Learn more about Scribd Membership Home. Much more than documents. Discover everything Scribd has to offer, including books and audiobooks from major publishers. Start Free Trial Cancel anytime. Uploaded by Greg5J3J. Document Information click to expand document information Description: Firearms.

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Description: Firearms. Flag for Inappropriate Content. Download Now. For Later. Related titles. Carousel Previous Carousel Next. Jump to Page. Search inside document. Magazine Catch. Trigger Bar. Stock anchor point. Rubber buffer. Trigger Guard. Magazine Stop. Side View. Top View. The trigger guard is made from. This sheet should be. The guard is formed. A hole measuring 9x7mm is. This hole. The guard is silver.

The sear is cut from a section. A 4mm diameter dowel pin is. The pin should protrude 8mm. The sear is made from mild. Right Side. Cut 4mm x. Sear Fitted. Spring Fitted. The sear spring is. It should have. Sear Spring. Dowel Pins. Receiver Top. We can now begin construction of the. Bolt Handle. Sling Loop. Hydraulic tube. Stack of washers.

6ES7 138-4DF01-0AB0 PDF

Expedient Homemade Firearms BSP 9mm SMG P.A Luty

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Expedient Homemade Firearms - BSP 9mm SMG

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