9mm Bullet Hose (Practical Scrap Metal Small Arms Vol.8).pdf

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By Professor Parabellum
Introduction
The following lightweight and highly compact machine pistol design is quick to manufacture and contains a low
number of components. It's minimalist layout incorporates a single receiver piece to house all components, doing
away with the use of any pins or bolts to retain it's trigger grouping. These features result in a sleek and refined
appearance, contrasting with the majority of weapons of this type.
Specs:
Operation:
Open-bolt, blowback
Cartridge:
9x19mm
Capacity:
32rds
Overall length:
309mm
Height:
110mm without mag (261mm with)
Barrel Length:
6.5”
Weight unloaded:
1.681 kg
It's small size allows it to fit comfortably into a standard pistol
bag.
Constructed in it's most concealable form very little
protrudes, keeping a slim profile. A design feature
employed to maximize concealability is the
inclusion of a single wide port on-top allowing for
the bolt to be cocked without an external handle in
the same manor as the US M3 Grease Gun. The
standard use of 1 1/2” receiver tube and 3/4” lock
collars allow for ease of lamination of internal
components without using a lathe.
Not to miss out on the availability of modern high
tech synthetic polymers, a section of rubber bicycle
handlebar grip was incorporated to serve as a
comfortable and expedient palm rest.
For legal reasons, the demonstration prototype
pictured was constructed as a non-firing dummy
replica. It contains a blocked and destroyed dummy
barrel and it's dummy bolt features no provisions for
a firing pin.
This document is intended purely for
academic study purposes only
.
Top: The lack of any external cocking handle further amplifies
concealability while it's large port opening ensures reliable ejection.
Disassembled:
Components: Magazine, Receiver, Barrel assembly, Sear, Trigger, Bolt assembly, Bolt retaining tab, Recoil spring,
End plug, Retaining bolts (x7)
Cut-away view:
Prototypes for a similar short-lived commercial design produced in the 1980s. Purportedly developed for
distribution to guerrilla groups for use in clandestine operations. An added rotatable forward grip is
present which can also hold an extra magazine.
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