MAS 49/56 SERVICE
MANUAL
1. DESCRIPTION
1.1. GENERAL DESCRIPTION
1.1.1. Purpose
1.1.2. Ammunition
1.1.2.1. For live fire of ball ammunition:
1.1.2.2. Reduced [non-lethal] fire
1.1.2.3. For grenade launching
1.1.2.4. For blank fire
1.1.3. List of Materials
1.1.3.1. F.S.A. 49-56 (F.S.A. means Rifle, semi-automatic)
1.1.3.1.1 Composition of Combined Kit
1.1.3.1.2. Principal components:
1.1.3.1.3. Aiming the weapon
1.1.3.1.4. Integral grenade launcher
1.1.3.1.5. Night sight device
1.1.3.1.6. Bayonet knife (A, fig. 3).
1.1.3.2. F.S.A. 49-56 M.S.E. (modified version)
1.2. NUMERICAL SPECIFICATIONS
1.2.1. F.S.A. 49-56
1.2.2. F.S.A. 49-56 M.S.E. (modified version)
1.3 SAFETY RULES REGARDING SUPPLIES
1.3.1. Ammunition not to be used with the F.S.A. 49-56 M.S.E.
1.3.2. Launching rifle grenades
1.3.3. Night sight fixture
1.3.4. Action in case of a stoppage
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2. PROCEDURES FOR NORMAL FIRE
2.1 USE OF THE WEAPON FOR NORMAL RIFLE FIRE
2.1.1 Feeding
2.1.2. Unfeeding
2.1.3. Arming
2.1.4. Charging
2.1.5. Engaging and disengaging the safety (S, fig. 16).
2.1.6. Adjusting the elevation.
2.1.7. Firing
2.1.8. Unloading
2.1.9. Disarming
2.2 FIRING RIFLE GRENADES (Rifle-Launched Grenades)
2.2.1 Vertical grenade fire
2.2.1.1. Adjustment of the sighting bar
2.2.1.2. Adjustment of the sliding ring
2.2.1.3. Vertical (high-trajectory) grenade launch
2.2.2. Held grenade fire
2.3. USE OF THE NIGHT SIGHT APPARTUS.
2.3.1. Attach the apparatus.
2.3.2. Calibration of the apparatus
2.3.3. Aiming using the night sight apparatus
2.4 FIRE USING THE TELESCOPIC SIGHT, MODEL, model 1953 (fig. 12).
2.5. USE OF THE BAYONET KNIFE
2.5.1. Fixing to the weapon
2.5.2. Removal
2.6. BLANK FIRE
3. PROBLEMS
4. MAINTENANCE
4.1. MAINTENANCE OPERATIONS TO BE PERFORMED
4.1.1. Before firing
4.1.2. After firing
4.2. CLEANING SUBSTANCES TO BE USED
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4.3. AUTHORIZED DISASSEMBLY
4.3.1. Remove the bolt cover
4.3.2. Remove the slide assembly
4.4 REASSEMBLY
4.5. SIGHT ADJUSTMENT FOR THE F.S.A. 49-56
4.5.1. Windage adjustment
4.5.2. Elevation adjustment
4.6. SIGHT ADJUSTMENT FOR THE F.S.A. 49-56 M.S.E.
4.6.1. Windage adjustment
4.6.2. Elevation adjustment
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Table of Figures
Figures
1. Rifle Semi-Auto 1949-56 with bayonet knife and magazine
[left side view]
2. Rifle Semi-Auto 1949-56 modified version Saint-Etienne
[left side view]
3. Rifle Semi-Automatic 1949-56 [right side view]
4. Rifle Semi-Automatic 1949-56 M.S.E. [right side view]
5. Rifle S.A. 1949-1956 disassembled
6. Adjustable eyepiece of the F.S.A. 1949-1956
7. Night sight device
8. Recoil pads
9. High-trajectory fire of a rifle grenade with the sighting bar at 45”.
10. Shoulder-held fire of a rifle grenade with the sight bar at 74”
11. Sight picture for shoulder-held grenade fire at a range of 75 meters.
12. Telescopic sight, model 1953
13. Disassembly of the bolt cover
14. Dissassembly of the slide assembly
15. Reassembly of the bolt cover
16. Nomneclature of the 7.5 mm semiautomatic rifle, model 1949-1956
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Fig. 1 -- Rifle Semi-Auto 1949-56 with bayonet knife and magazine
[left side view]
Fig. 2 -- Rifle Semi-Auto 1949-56 modified version Saint-Etienne
[left side view]
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[blank]
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1. Description
1.1. General Description
1.1.1. Purpose
The Semi-automatic rifle, 7.5 mm, model 1949-56, or F.S.A. 49-56 (fig. 1 &
3), is a personal weapon designed for killing fire up to a range of 400 m,
using its integral iron sights, and to a range of 800 m using telescopic
sights, model 1953 (fig. 12).
Fed by a 10-cartridge magazine, it is designed for:
-- night fire up to a range of 100 meters, with the aid of the luminescent
night sight fixture
-- the firing of all forms of French 22 mm rifle grenades.
The semi-auto rifle, 7.5 mm, model 1949-56, modification Saint-Etienne, or
F.S.A. 49-56 M.S.E. (fig. 2 & 4) is a version of the F.S.A. 49-56 conceived to
improve normal rifle fire performance. This model my be alternately supplied
with 10 or 18 round magazines.
Fig. 3. Rifle Semi-Automatic 1949-56 [right side view]
A. Bayonet knife
B. Magazine
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Fig. 4. Rifle Semi-Automatic 1949-56 M.S.E. [right side view]
1.1.2. Ammunition
1.1.2.1. For live fire of ball ammunition:
Currently the 7.5 mm cartridges, model 1929, are used:
-- ordinary ball
-- tracer (1)
Other models (armor piercing, incinderary, tracers....) may be placed at
the disposal of the Corps of Troops, but always in restricted quantities.
1.1.2.2. Reduced [non-lethal] fire
Cartridges for non-lethal fire, 7.5 mm, model 1961, with plastic bullets,
known as "Balplast."
These do not guarantee cycling of the semi-automatic action.
This round is dangerous up to a range of 100 m.
_______________
Footnote:
(1) tracer range: 600 m, increased to 800 m with the latest models
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1.1.2.3. For grenade launching
Bulletless cartridges, 7.5 mm, for French rifle grenades and rifle flairs
with 22 mm tail assemblies (see the separate publication on French rifle
grenades and and their launching procedures, INF 126).
1.1.2.4. For blank fire
Plastic blank cartridges, 7.5 mm, model 1958, colored white. These will
cycle the semi-automatic action when [the rifle is] fitted with a gas check for
blank fire.
1.1.3. List of Materials
1.1.3.1. F.S.A. 49-56 (F.S.A. means Rifle, semi-automatic)
1.1.3.1.1 Composition of Combined Kit
-- the arm proper;
-- four magazines (B. fig. 3)
-- rifle sling;
-- recoil pad, either size 1 or 2 (fig. 8);
-- a bayonet knife (A, fig. 3) with sheath;
-- a night sight assembly (fig. 7) with canvas case
-- a wrench for the night sight assembly
-- a leather pouch, model 58, (or a canvas pack) and a parts case
containing
-- a cleaning pull-string
-- a brass [bore] brush and a chamber brush
-- a flat brush
-- an oil flask
-- a case puller
-- an ejector hook-screwdriver
-- a firing pin
-- an extractor and its spring
-- two grenade retaining springs
The kit optionally will contain a telescopic sight, model 1953
(fig. 12).
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Fig. 5 -- Rifle S.A. 1949-1956 disassembled
A. Carrier
B. Bolt
C. Firing pin
D. Bolt cover
E. Trigger guard
F. Trigger
G. Safety lever
H. Receiver
J. Recoil spring (There's a misprint here. The French should read "Ressort" not
"Support."
Fig. 6 -- Adjustable eyepiece of the F.S.A. 1949-1956 (rear view from the right
side)
[N.B. This photo also shows the bolt cover latch that is operated in
disassembly.]
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1.1.3.1.2. Principal components:
-- the barrel (K, fig. 16);
-- receiver assembly, including bolt cover, trigger guard (C, A & U, fig. 16);
-- sliding parts, consisting of the bolt carrier, bolt, and recoil spring (A, B
& J, fig. 5);
-- accessories;
-- magazines containing a maximum of 10 rounds, supplied in sealed boxes.
1.1.3.1.3. Aiming the weapon
Aim is made through the use of,
-- an elevation slide (B, fig. 16) mounted on the bolt cover and
graduated from 200 to 1200 meters in 100-meter intervals.
-- a rear sight aperature adjustable for windage
-- a trapezoidal foresight (M, fig. 16) protected by two ears and
adjustable for height.
1.1.3.1.4. Integral grenade launcher
It consists of,
-- a sighting bar (L, fig. 16) that can take three positions
(completely collapsed for rifle fire, elevated to 45 degrees, and
elevated to 74 degrees). It includes auxiliary sights
(a rear sight notch and foresight bead), on its left side, for the
high-trajectory launch of grenades and four angle-shaped
sights (labeled 50, 75, 100, and 120 meters antipersonnel) for
held launch of rifle grenades.
-- a sliding ring (N, fig. 16) engaging a scale of calibrated slots.
1.1.3.1.5. Night sight device
Fig. 7. -- Night sight device
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[1.1.3.1.5. Night sight device (cont'd)]
It is fixed onto the end of the barrel with the aid of a wingnut. It
consists of an adjustable rear luminescent Partridge-type sight and adjustable
front-sight blade, the former adjustable for windage and the latter for
elevation. It serves as a flame-arrestor.
1.1.3.1.6. Bayonet knife (A, fig. 3).
The weapon can be fitted with a bayonet.
1.1.3.2. F.S.A. 49-56 M.S.E. (modified version)
The weapon possesses a pistol grip and two cheek pads.
The following parts have been modified: butt stock, trigger mechanism,
sights.
The adjustment screw for the rear peep-sight is drilled with two holes at
90” and provides 4 adjustment steps.
The round front-sight bead has 8 adjustment steps.
1.2. NUMERICAL SPECIFICATIONS
1.2.1. F.S.A. 49-56
Caliber................................................. 7.5 mm
Total length............................................ 1.02 m
Barrel length........................................... 0.525 m
Weight, without magazine................................ 3.900 kg
Weight of empty magazine................................ 0.200 kg
Weight of full magazine................................. 0.430 kg
Weight of bayonet and scabard........................... 0.500 kg
Muzzel velocity for ball ammunition..................... 820 m/s
1.2.2. F.S.A. 49-56 M.S.E. (modified version)
Total length............................................ 1.05 m
Thickness of lower cheek pad............................ 8.00 mm
Thickness of upper cheek pad............................ 17.00 mm
Weight, without magazine................................ 4.100 kg
Trigger pull............................................ 2.5 to 2.8 kg
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1.3 SAFETY RULES REGARDING SUPPLIES
1.3.1. Ammunition not to be used with the F.S.A. 49-56 M.S.E.
-- blank cartridges
-- non-lethal cartridges "Blaplast"
-- rifle grenades
1.3.2. Launching rifle grenades
-- Install the recoil pad (fig. 8)
-- Fire the weapon, without magazine, and with closed gas tube shut-off
valve (H, fig. 16). Since the gas tube is closed, the bolt handle must be
manually operated after each shot.
Fig. 8 -- Recoil pads
A. Pad size 1 (+ 2 cm) B. Pad size 2 (+ 3.5 mm)
1.3.3. Night sight fixture
The luminescent tabs of the night sight fixture contain a toxic substance
that is weakly radioactive.
-- Do not place a tab that has become detached in the mouth on in contact
with an open wound or sore. Wash your hands after contact.
-- Carefully remove any tab that has become detached from the night sight
device. Send the unit to Supplies for reattachment.
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The radioactivity of a night sight is slightly greater than that of a
wristwatch with luminescent dial; normal use of the device is, therefore, not
dangerous. At the same time:
-- do not permanently encamp personnel closer than 2 meters from small
stores of night sight fixtures (for example, a single case of nights
sights as found in a unit magazine);
-- do not permantly encamp personnel closer that 1 meter from a stack of
arms containing several night sight fixtures (for example, a barracks
arms stack).
1.3.4. Action in case of a stoppage
Remove the magazine (cf. 2.1.2.).
Cock the action (cf. 2.1.3.), except if the bolt has returned to battery.
In this case, a hangfire may be possible. Wait two minutes (except in combat)
before opening the chamber.
Engage the safety (cf. 2.1.5.).
Examine the chamber and the ejected cartridge or case.
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2. PROCEDURES FOR NORMAL FIRE
2.1 USE OF THE WEAPON FOR NORMAL RIFLE FIRE
2.1.1 Feeding
There are two procedures:
-- Introduce a full magazine in its well underneath the receiver and
push it completely upward until it's latch is engaged.
-- Place an empty magazine in the magazine well, with the bolt open.
Introduce a stripper clip in the slot just forward of the bolt handle
and push the column of cartridges into the magazine by pushing down as
close as possible to the clip. Repeat this with a second stripper clip
of five more cartridges.
2.1.2. Unfeeding
Pull the cartridge out of its well while pushing on its latch.
2.1.3. Arming
Grab the bolt handle with the right hand; pull it completely to the
rear; the bolt and bolt carrier is moved to the rear, at the same time as
the hammer is cocked.
Release the bolt handle:
-- if the weapon is loaded (cf. 2.1.1), the bolt will close while stripping
off a cartridge from the magazine and pushing it into the chamber.
-- if a magazine is in place but empty, the bolt will remain open;
-- if there is no magazine in place, the bolt will close on an empty
chamber.
2.1.4. Charging
Feed (cf. 2.1.1.).
Arm (cf. 2.1.3.).
2.1.5. Engaging and disengaging the safety (S, fig. 16).
To engage the safety, lower the safety lever.
To disengage the safety, replace the safety lever in the upward position.
2.1.6. Adjusting the elevation.
Grip the slider between the thumb and index finger of the right hand,
depress the slider button and move the slider until its indicator is in front
of the desired graduation.
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2.1.7. Firing
-- Disengage the safety.
-- Maintain aim while pushing gradually on the (two stage) trigger until
the round is discharged.
-- Reengage the safety.
2.1.8. Unloading
-- Unfeed (cf. 2.1.2.).
-- Cycle the action to eject the chambered round (cf. 2.1.3.).
2.1.9. Disarming
-- Assure that the chamber is empty and the chamber contains no rounds.
-- Depress the trigger as in firing the weapon.
2.2 FIRING RIFLE GRENADES (Rifle-Launched Grenades)
Fire is done with magazine removed and the gas-port cock (valve) closed.
Ammunition is the special launching cartridge, 7.5 mm, without projectile.
Grenades are fired in either vertical (high-trajectory) fire (antipersonnel
grenades), or in shoulder held fire (antitank and antipersonnel grenades).
2.2.1 Vertical grenade fire
Two preliminary operations are necessary,
-- raise the sighting bar to the proper angle (74 degrees for range
of fire between 100 and 200 meters, 45 degrees for ranges between
200 and 400 meters).
-- adjust the sliding ring to the position appropriate for the range.
2.2.1.1. Adjustment of the sighting bar
Grip the stowed bar between thumb and index finger and pull it slightly
toward the rear to release it from its detent and pivot it until it locks
-- in the first locking notch if the angle to be used is 45 degrees
-- in the second notch if the angle to be used is 74 degrees
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2.2.1.2. Adjustment of the sliding ring
Depress the locking button and move the sliding ring (N, fig. 16) along
the barrel until the graduation marking corresponding to the range appears
beneath the rear edge of the ring.
Release the button and assure that the ring has locked.
2.2.1.3. Vertical (high-trajectory) grenade launch
-- Raise the gas port cock (H. fig. 16)
-- Engage the sighing bar at 45 or 74 degrees, according to range to be fired
(74 degees for ranges of 100 to 200 meters, 45 degrees for ranges of 200 to
400 meters).
-- Put the sliding ring on the graduation corresponding to the firing distance
(read the graduation directly for 74 degree angled fire, and mentally
multiply the rifle graduation by 2 in the case of 45 degree angled fire).
Example.
For a target estimated to be at 175 meters, engage the sighting bar in the
74 degree notch; put the sliding ring on the 18 mark.
For a target estimated to be at 300 meters, engage the sighting bar in the
45 degree notch; put the sliding ring on the 15 mark (15 x 2 = 30).
-- Position the grenade on the barrel until it abuts against the resistance of
the sliding ring (fig. 9).
Fig. 9. -- High-trajectory fire of a rifle grenade with the sighting bar
at 45”.
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-- Place a special grenade-launch cartridge in the chamber and close the
breech.
-- Aim the weapon by sighting along the auxilliary sights on the sighting bar.
-- Operate the trigger while maintaining the weapon in the aimed position.
2.2.2. Held grenade fire
-- Close (by raising) the gas port cock
-- Lock the sighting bar to 74 degrees.
-- Verify that the sliding ring is returned completely to the rear
-- Position the base of the grenade over the barrel so that it is fully
engaged.
-- Place a special grenade-launch cartridge in the chamber and close the
breech.
Fig. 10. -- Shoulder-held fire of a rifle grenade with the sight bar at 74”
Fig. 11. -- Sight picture for shoulder-held grenade fire at a range of 75
meters.
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-- Aim the weapon by aligning the target with a straight line passing through
the tip of the sight corresponding to the range (50, 75, or 100 meters for
antiarmor grenades, 120 meters for antipersonnel grenades) and the top
edge of the body (head) of the grenade.
-- Operate the trigger while maintaining the weapon in the aimed position.
2.3. USE OF THE NIGHT SIGHT APPARTUS (fig. 7).
2.3.1. Attach the apparatus.
Move the grenade-launch sliding ring (N, fig. 16) completely to the rear.
Insert the night sight apparatus fully onto the barrel, being sure that
the spring on its is completely engaged.
Rotate so that the sights are oriented vertically.
Strongly tighten the wing nut.
2.3.2. Calibration of the apparatus
In daylight, place the rifle, with night sight apparatus affixed, on a
bench rest.
Aim the rifle at a target placed 50 meters downrange using the normal
sights.
Direct the aimpoint of the night sight apparatus without touching the rifle
itself, employing only the adjustments provided on the front and rear sights
(cf. 1.1.3.1.5.).
2.3.3. Aiming using the night sight apparatus
Direct the line of sight made by the single flourescent dot of the front
sight and the two dots of the rear sight toward the target.
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2.4 FIRE USING THE TELESCOPIC SIGHT, MODEL, model 1953 (fig. 12).
Cf. Manual 1853, Technical Guide for the Telescopic Sight, Model 1953.
Fig. 12 -- Telescopic Sight, Model 1953.
2.5. USE OF THE BAYONET KNIFE
2.5.1. Fixing to the weapon
Hold the bayonet-knife vertically, beneath the barrel. Place the lower
coller in the sliding ring, which must be in its rear-most postion, then pull
the bayonet-knife back until it locks in place.
2.5.2. Removal
Depress the latch and pull the bayonet-knife strongly upward.
2.6. BLANK FIRE
Fit a blank fire adapter [stop] to the muzzel.
Use the white plastic cartridges, 7.5 mm., model 1958.
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3. PROBLEMS
In case of a problem during fire, empty the rifle (cf. 2.1.2.), cock the
action (fc. 2.1.3.), and engage the safety (cf. 2.1.5.), and examine the
chamber and cartridge or case.
If the slide has returned to battery, wait two minutes before opening the
breech, in order to avoid the consequences of a hang fire.
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Observations Possible Cause Remedy
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Normally ignited cartridge Defective Ammunition Change the Ammunition
remains in chamber
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Cartridge not ignited or Firing pin worn or Replace the firing pin
weekly ignited remains in broken.
chamber Failure to chamber
-- weapon is dirty Clean the weapon
-- foreign body Remove foreign body
Firing pin groove worn Return the weapon for
out of round. repair
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No extraction Extractor worn Replace extractor
Dirty chamber Clean the chamber
Broken case
Incomplete extraction, Insufficient bolt recoil Verify that the bullet is
case remains in the due to insufficient pro- not lodged in the
breech pulsion from the powder barrel.
charge (humidity) Change the ammunition lot
being used.
If the problem persists,
place the weapon in
repair.
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Cartridge slows in Weapon is dirty Clean the weapon
feeding Magazine is deformed Replace the magazine
Cartridge is dented Remove the cartridge
or corroded
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Cartridge not introduced The magazine lips are Replace the magazine
straight into the chamber bent
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Misfire Defective cartridge Verify that bullet is not
lodged in the barrel.
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Observations Possible Cause Remedy
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Gas escapes from the Case rupture Remove the case and bring
chamber. it to the armorer.
Rapid (full-auto) Premature hammer Place the weapon in
fire release repair
Grenades not held in Loss of the detent Install a new grenade
place spring detent spring
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4. MAINTENANCE
4.1. MAINTENANCE OPERATIONS TO BE PERFORMED
4.1.1. Before firing
Degrease the weapon then lightly lubricate it with gun oil (cf. 4.2.).
4.1.2. After firing
Field strip the weapon and clean it carefully. For the bore, use a patch
soaked in oil and a brass bore brush. Then dry with a dry patch.
Finally, apply a "protective layer,"
-- in the field, by means of a light oiling, to be renewed weekly;
-- in normal service, by means of a more ample oiling, to be renewed every
two days for the barrel and weekly for the other parts.
4.2. CLEANING SUBSTANCES TO BE USED
-- gun oil
-- anticorrosive oil (only for stored arms)
-- gasoline
Gasoline facilitates the cleaning of encrusted weapons but requires
very careful drying of parts before lubrication, in order to prevent rust.
Forbidden are:
-- abrasive materials
-- chlorinated solvents and acetone, which will disolve the plastic
envelope that contains the radioactive luminescent material in the
night sight fixture.
4.3. AUTHORIZED DISASSEMBLY
Before any handling, remove the magazine and cycle the mechanism to assure
that no cartridges are in the chamber. Close the breech and engage the safety.
4.3.1. Remove the bolt cover
Depress the bolt-cover latch, push the bolt-cover forward, lift it (fig.
13) and remove it upward and to the rear while controlling the recoil spring;
remove the latter.
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Fig. 13. -- Disassembly of the bolt-cover
4.3.2. Remove the slide assembly
With the help of the bolt handle, guide the bolt carrier and bolt toward
the rear and upward (fig.14); separate the bolt from carrier; remove the firing
pin.
Fig. 14. -- Disassembly of the slide assembly
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4.4 REASSEMBLY
Proceed in the reverse order of disassembly.
In reassembling the slide assembly, be sure that the ejector prong [within
the magazine well] is seated.
For the reassembly of the bolt cover (fig. 15),
-- use two hands (the recoil spring must be firmly held and guided);
-- assure that the bolt-cover latch is properly engaged.
Fig. 15. -- Reassembly of the bolt cover.
4.5. SIGHT ADJUSTMENT FOR THE F.S.A. 49-56
4.5.1. Windage adjustment
This adjustment if made by moving the rear sight to the right or to the
left.
Using the ejector-hook-screwdriver tool:
-- unscrew [CCW] the peep-sight screw to drive the rearsight to the right
and, consequently, move the point of impact to the right.
-- screw [CW] the peep-sight screw to drive the rearsight to the left and,
consequently, move the point of impact to the left.
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Each half-turn of the screw, marked by a click, displaces the rear sight by
one-half mil (half graduation), which corresponds to a displacement of the
center of impact by 5 centimeters at a distance of 100 meters, or by 10
centimeters at a range of 200 meters.
[Note on the difference between the units of arc used by French and US Aramy
Artillary. The unit used in this manual is the millime which is the arc
subtended by 1 m. at a range of 1000 m. I have translated this to the mil,
which is the US unit of arc corresponding to 1/6400 of 360 degrees. They differ
by a bit less than 2%, the mil being 0.00098 radians whereas the millime is
0.0010 radians.]
It is possible to displace the rear sight by three complete turns on side
to the other from the central position.
Example -- At 100 meters, the group center is 20 centimeters to the left of
point of aim: turn the rear-sight screw 2 turns CCW.
4.5.2. Elevation adjustment
This adjustment is done by moving the front sight bead with respect to its
mid-position.
Depress the locking boss with the tip of a cartridge and:
-- screw (CW) the front sight down if fire is to be moved upward;
-- unscrew (CCW) the front sight up if fire is to be moved down.
Each quarter time corresponds to a half-mil, that is a displacement of the
average point of impact by 5 cm at a range of 100 m or of 10 cm at a range of
200 m.
It is possible to displace the rear sight by one-and-one-half complete
turns on side to the other from the central position. The front sight post,
viewed from above is engraved with numbered gradations going from 1 to 4.
Example of elevation adjustment -- At 100 meters, the average group center
is systematically found to be 10 centimeters above point of aim: screw the
front sight screw two quarter-turns downward.
4.6. SIGHT ADJUSTMENT FOR THE F.S.A. 49-56 M.S.E.
4.6.1. Windage adjustment
The adjustment of this modified version of the rifle is similar to that of
the F.S.A. 49-56, but each click corresponds to a quarter-turn and moves the
rear sight a quarter-mil, which corresonds to a displacement of the average
point of impact by 5 cm at a range of 200 m.
4.6.2. Elevation adjustment
The adjustment of this modified version of the rifle is similar to that
of the F.S.A. 49-56, but it is possible to adjust by one-eight turns,
corresonding to a displacement of the average point of impact by 5 cm at a
range of 200 m.
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Fig. 16 -- Nomneclature of the 7.5 mm semiautomatic rifle, model 1949-1956.
A. Bolt cover
B. Sight (rear)
C. Receiver
D. Carrier
E. Bolt lever
F. Hand guard
G. Forepiece
H. Gas port (stop) cock
J. Lever for the gas port cock
K. Barrel
L. Sighting bar for grenade launching
M. Front sight
N. Sliding ring stop for grenades
P. Flash suppressor
R. Magazine
S. Safety lever
T. Trigger
U. Trigger guard
V. Stock
W. Bayonet knife
X. Bayonet sheath
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