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141 Low Signature Systems (Silencers)
Low Signature Systems (Silencers) by the Jolly Roger
Low signature systems (silencers) for improvised small arms weapons
can be made from steel gas or water pipe and fittings.
Material Required:
-----------------
Grenade Container
Steel pipe nipple, 6 in. (15 cm) long - (see table 1 for diameter)
2 steel pipe couplings - (see table 2 for dimensions)
Cotton cloth - (see table 2)
Drill
Absorbent cotton
Procedure:
---------
1) Drill hole in grenade container at both ends to fit outside diameter
of pipe nipple. (see table 1)
-> /----------------------\
/ | |
2.75 in | ) ( <-holes
dia. \ | |
-> \-----------------------/
|-----------------------|
5 in.
2) Drill four rows of holes in pipe nipple. Use table 1 for diameter and
location of holes.
(Note: I suck at ASCII art!)
6 in.
|-----------------------------------|
_____________________________________ ___
| O O O O O O O O O O O O O O O O O | | C (nom. dia.)
-------------------------------------
(size of hole) | \ / (space between)
B (dia.) A
3) Thread one of the pipe couplings on the drilled pipe nipple.
4) Cut coupling length to allow barrel of weapon to thread fully into low
signature system. Barrel should butt against end of the drilled pipe
nipple.
5) Seperate the top half of the grenade container from the bottom half.
6) Insert the pipe nipple in the drilled hole at the base of the bottom
half of the container. Pack theabsorbent cotton inside the container and
around the pipe nipple.
7) Pack the absorbent cotton in top half of grenade container leaving
hole in center. Assemble container to the bottom half.
8) Thread the other coupling onto the pipe nipple.
Note: A longer container and pipe nipple, with same "A" and "B"
dimensions as those given, will furthur reduce the signature of the
system.
How to use:
----------
1) Thread the low signature system on the selected weapon securely.
2) Place the proper cotton wad size into the muzzle end of the system
(see table 2)
3) Load weapon
4) Weapon is now ready for use
TABLE 1 -- Low Signature System Dimensions
------------------------------------------
(Coupling) Holes per (4 rows)
A B C D Row Total
------------------------------------------------------------------------
.45 cal 3/8 1/4 3/8 3/8 12 48
.38 cal 3/8 1/4 1/4 1/4 12 48
9 mm 3/8 1/4 1/4 1/4 12 48
7.62 mm 3/8 1/4 1/4 1/4 12 48
.22 cal 1/4 5/32 1/8* 1/8 14 50
------------------------------------------------------------------------
*Extra Heavy Pipe
(All dimensions in inches)
TABLE 2 -- Cotton Wadding - Sizes
---------------------------------
-------------------------------------------------
Weapon Cotton Wadding Size
-------------------------------------------------
.45 cal 1-1/2 x 6 inches
.38 cal 1 x 4 inches
9 mm 1 x 4 inches
7.62 mm 1 x 4 inches
.22 cal Not needed
-------------------------------------------------
------------------Jolly Roger
