Kel-tec SU-16 Instructions Manual

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S U -1 6  R IF LE  
KELT E C  C NC IN DUSTR IE S IN C
PO  B O X 2 36009
C O CO A F L 3 2923
S A FE TY , IN STR UCTIO N,AND P A RTS  M ANUAL
321-6 31-0 068
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							KEL-TEC SU-16 RIFLE
SAFETY, INSTRUCTION & PARTS MANUAL
STATEMENT OF LIABILITY
This rifle may be classified as a dangerous
weapon and is surrendered by KEL- TEC CNC
INDUSTRIES INC. with the understanding that
the purchaser assumes all liability resulting
from unsafe handling or any action that
constitutes a violation of any applicable laws or
regulations. Firearms can cause serious injury
and death. Safety must be the prime consider-
ation of anyone who handles firearms. Always
treat a firearm as though it were loaded. Always
keep the muzzle pointed in a safe direction.
In owning a firearm, you are responsible for the
firearm’s safety and security. Always secure
firearms from children.
READ THESE INSTRUCTIONS AND
WARNINGS CAREFULLY, BE SURE
YOU UNDERSTAND THESE INSTRUC-
TIONS AND WARNINGS BEFORE
USING THIS FIREARM
.
This SAFETY, INSTRUCTION & PARTS
MANUAL should always accompany this
firearm and be transferred with it upon change
of ownership or when the firearm is loaned or
presented to another person. A copy of the
SAFETY, INSTRUCTION & PARTS MANUAL is
available FREE upon request and can also be
downloaded from the internet at http://www.Kel-
Tec.com. 
						

							READ AND CAREFULLY FOLLOW THESE
WARNINGS AND INSTRUCTIONS
These warnings and instructions are provided
to assure the safe functioning of the rifle.
Failure to heed them may result in improper
functioning and serious injury.
Kel-Tec firearms are designed to function
reliably with proper care and knowledgeable
use. Do not use your firearm unless you fully
understand these instructions, and the safe
operation of your firearm.
Only safe gun-handling habits will ensure the
safe use of your firearm. This is your responsi-
bility. Accidents are the result of violating the
rules of safe gun handling and common sense.
Before handling a firearm, understand its
operation.
Never accept or pickup a firearm without
checking the magazine and the chamber to
assure the weapon is empty. Do not trust the
extractor to clear the chamber, look and feel.
Always make sure the muzzle is pointed in a
safe direction at all times.
Never point a firearm at anyone or anything you
do not intend to shoot.Make sure your “audience” is always 5 feet in
back of you, not next to you when firing.
Keep your firearm unloaded when not in use.
Never keep a loaded firearm in the home or
vehicle. Never store a firearm with a cartridge in
the chamber.
Never store firearms and ammunition together,
keep them locked up and away from children.
Never touch the trigger when working the
action. Never alter any components of your
firearm.
Never take medications, drugs, or alcohol when
handling firearms
Never load or unload a firearm without assuring
the muzzle is pointed in a safe direction.
Never load a firearm except immediately before
shooting. 
						

							SAFE GUN HANDLING IS YOUR
RESPONSIBILITY
The SU-16 rifle is designed and chambered for
the .223 Remington cartridge. The type of
ammunition is also stated on the right side of
the receiver. Do not use any other ammunition.
Only use commercially manufactured ammuni-
tion, clean, dry, and in good condition. Never
use non-standard, reloaded or damaged
cartridges.
Never use ammunition where the pressure
levels exceed industry standards. Kel-Tec guns
are manufactured from high quality materials.
They will provide extended service life.
However, all warranties, expressed or implied,
are voided and Kel- Tec will not be liable for
property damage or personal injury and
consequential damages, if faulty ammunition is
used in Kel- Tec centerfire firearms.
Discharging firearms in poorly ventilated areas,
cleaning firearms, or handling ammunition may
result in exposure to lead and other substances
known to cause birth defects, reproductive
harm, and other serious physical injury. Have
adequate ventilation at all times. Wash hands
thoroughly after exposure.
Never discharge a firearm without proper
shooting glasses and ear protection. Never
shoot at any water surface or any surface
where a ricochet can occur.Never shoot until you are sure of your backstop
and what lies beyond it.
If the gun does not discharge after pulling the
trigger, do not change its direction for at least
30 seconds,  you could be having a “hang fire”.
Do not allow a firearm to be used by individuals
who do not understand its safe operation and
the rules of safe gun handling.
CAUTION: After firing several rounds the
forward, exterior metal parts of the SU-16 rifle
get hot and can cause severe burns.
Be sure all accessories are compatible with the
firearm and that the accessories do not
interfere with safe operation.
When transporting your firearm, be sure your
firearm is unloaded.
If you do not understand how to operate any of
our products or have any questions about their
safe handling, please write or email us.
Always be aware of other people so that they
cannot accidentally walk into the line of fire.
When firing on a target range, be alert and
follow the range officer’s commands. Never
cross obstacles such as fences or streams with
a loaded firearm. 
						

							INTRODUCTION
The SU-16 is a semi-automatic rifle chambered
for the .223 Remington (5.56mm) cartridge.
The SU-16 rifle will accept most standard M-16
type magazines. The forend can be unfolded to
form a bi-pod for more accurate shooting. The
stock has storage space for two 10 round Kel-
Tec magazines or one 20 or 30 round maga-
zine. By rotating the stock down and forward,
the SU-16 rifle can be reduced to a size of
27x7.5 inches (680x190mm) to facilitate
storage.
CONSTRUCTION
The receiver, stock, and forend are made of an
impact resistant glass reinforced Zytel.  The
receiver has an aluminum insert molded into
the front to accept the barrel and the serial
number.
The barrel has a fully adjustable front sight.The stock houses the firing mechanism and
has storage for two 10 round magazines. It is
ended with a soft rubber butt plate.
The firing mechanism is of  conventional single
action type. It has a push bolt safety that blocks
the trigger.
Functioning
At the start of this cycle the weapon is
assumed already loaded, full magazine
inserted, hammer cocked, the safety disen-
gaged and ready to fire.
When The SU-16 rifle’s trigger is pulled, the
trigger block rotates lifting up the rear of the
sear. This causes the sear to rotate on its axis
disengaging the sear from the hammer. The
hammer rotates forward to strike the firing pin,
which in turn hits the cartridge primer igniting
the powder charge. 
						

							The hot expanding powder gases drive the
bullet forward through the barrel. After about
.0007 seconds the bullet passes the gas port in
the barrel and some of the powder gases enter
the gas head and press on the piston. The
pressure builds on the piston, which pushes on
the piston rod and the bolt carrier causing the
bolt carrier to move backwards, unlocking the
bolt from the barrel extension. After the bolt
carrier moves about 0.41inches (10.5mm) the
bolt is fully unlocked from the barrel extension
and the bolt and empty case continue to move
backwards with the bolt carrier.On it’s way backwards, the bolt carrier cocks
the hammer and the empty case ejects. The
bolt carrier is gradually slowed down and
stopped by the recoil spring. The recoil spring
then drives the bolt carrier forward. The top
cartridge in the magazine is picked up by the
bolt and pushed into the barrel. The bolt stops
moving once the round is fully inserted in to the
chamber but the bolt carrier continues to move
forward until it rests on the barrel extension, the
cam path and cam pin cause the bolt to twist
and lock with the barrel extension. 
						

							The hammer is now resting on the sear which is
pushing back onto the rear of the trigger block.
As the trigger is released the trigger block
rotates, lowering the rear of the trigger blockwhich allows the sear to move backwards and
rest on the top of the rear of the trigger block.
The SU-16 rifle is now ready for the next shot. 
						

							INSTRUCTIONS FOR USE
The normal storage condition of the SU-16 rifle
is unloaded with the stock folded underneath
the barrel.
Folding and unfolding the rifle
To unfold the rifle remove the assembly pin
from its spring locked hole in the receiver. The
stock is simply latched onto the barrel with
friction and can be unfolded by simply pulling it
apart from the barrel. Fully extend the stock
and line up the assembly pin holes. Press in
the assembly pin until it is flush with the outside
of the stock
To fold the rifle simply press out the assembly
pin with a small tool or the tip of a cartridge,
fold the stock under the barrel, and replace the
assembly pin into the spring locked hole in the
receiver.
Extending and folding the bi-pod
To extend the bi-pod grip the 2 locking tabs on
each side of the forend with your thumb and
middle finger. Pull them back until the bi-podunlatches and then release the bi-pod. Rotate
the bi-pod forward until it is fully extended. If
only one half of the bi-pod opens, squeeze it
closed and try again, being sure to use only two
fingers to unlatch the bipod.
To fold up the bi-pod rotate the bi-pod back until
the locking holes are aligned with the locking
tabs.  Squeeze the bi-pod together until both
halves snap into place. Be careful not to get
any part of your hand in between the two halves
when you snap it shut.
Safety
To achieve operator safety, combined with ease
of handling, the SU-16 rifle’s manual safety,
when applied, positively blocks the trigger from
rotating the sear.  The safety can be applied at
any time, whether the hammer is cocked or not.
Only when the red paint on the safety is fully
obscured is the safety engaged.
Obviously the safest condition of the rifle is
folded and unloaded. Also considering 
						

							unauthorized operation, other modes of storing
or carrying will gradually improve readiness at
the cost of safety.
Malfunctioning
Proper function of your SU-16 rifle is directly
related to maintenance and care, and to the
ammunition you use. Some of the more
common types of malfunctions which may
occur are as follows:
Misfire: A failure to fire or unusual sound upon
firing is always a signal to cease firing and
immediately examine the bore of the firearm. It
is not sufficient to just pull the operating handle
back and examine the chamber. You must
remove the magazine, clear the chamber, lock
the bolt open and inspect the bore visually -
and with a rod if necessary - to be certain it is
completely clear of any obstruction. Failure to
detect and remove a bore obstruction can result
in serious injury or death to the shooter and
bystanders, and damage to the firearm.WARNING: DO NOT ATTEMPT TO
REMOVE A LODGED BULLET OR ANY
OTHER OBSTRUCTION BY USING A
BLANK CARTRIDGE, OR A CARTRIDGE
WITH THE BULLET REMOVED, OR BY
ANY MEANS OTHER THAN THE USE
OF THE PROPER SIZE CLEANING ROD
(WITHOUT A TIP OR BRUSH) AND
REASONABLE FORCE APPLIED TO
THE ROD. BE CERTAIN ALL LOOSE
POWDER HAS BEEN REMOVED FROM
THE BORE AND ACTION BEFORE
INTRODUCING THE ROD INTO THE
BORE.
Failure to Feed: This occurs when a cartridge
has been fed from a magazine but not fully
chambered. If this occurs, keep the firearm
pointed in a safe direction, remove that
cartridge, operate the bolt manually and
continue shooting. If necessary, change the
magazine. The most common causes are dirt 
						

							or foreign objects impeding the magazine
follower. Improperly crimped cartridges are
another cause.
Failure to Eject or Extract: A fired case is not
fully extracted from the chamber or ejected
from the rifle. Again, keep the firearm pointed in
a safe direction, clear the gun by operating the
bolt, remove the case and continue. If neces-
sary, change the magazine. The most common
causes are a damaged extractor, ejector or
ammunition. Improperly loaded or sized
cartridges can cause this also. If any of the
above problems are not solved by cleaning or
by use of other brands of ammunition, stop
firing, unload and return the SU-16 rifle to our
service department.
Firing
With the muzzle pointed in a safe direction and
your finger outside the trigger guard, take aim
at a safe target, disengage the safety and
squeeze the trigger until a round is fired.Release the trigger and you are ready to fire
another round.  Upon firing, the bolt moves
rearward extracting and ejecting the fired round
and returns to the forward position feeding
another round automatically while doing so.
This sequence can be repeated until the last
round has been fired. The SU-16 has an
automatic bolt stop so after the last round is
fired the bolt will lock open.  Remove the empty
magazine by pressing the magazine catch
located on the right side of the receiver and
pulling out the empty magazine. To continue
shooting simply insert a full magazine into the
magazine well, firmly push it up until it locks,
pull back and release the operating handle to
release the bolt stop and feed the next round,
the rifle is now ready to fire.
Unloading
To unload the SU-16 rifle engage the safety,
push in the magazine catch, remove the
magazine, and pull the operating handle fully