Barrett REC-7
 REC 7
Operator’s Manual
September 26, 2008
USE OF THIS MANUAL
Before you handle the REC7 rifle, read this manual in its entirety. It is important
that you understand the principles of safe gun handling in general and the unique
features of this rifle. This manual is not a substitute for training from a qualified
instructor. Important safety topics are discussed in this chapter and throughout
this manual. This manual should remain with the rifle and it should be transferred
with the rifle to subsequent owners. Additional manuals can be ordered from
Barrett Firearms Manufacturing or can be downloaded from the company
website.
This manual covers all variants of the REC7. Technical specifications are subject
to change without notice.
SAFETY GUIDELINES
WARNING
Failure to follow safety guidelines may cause injury or result in death.
Ammunition
Barrett does not condone the use of hand loaded, remanufactured, or surplus
ammunition. The use of clean, dry and properly stored commercially
manufactured ammunition will preserve your warranty.
Do not mistake the 6.8 SPC cartridge with the .223/5.56mm cartridge. Do not use
.223/5.56mm magazines, muzzle brakes, flash hiders, sound suppressors, or
blank firing attachments on your 6.8 SPC caliber rifle.
WARNING
Mixing components can result in rifle damage and personal injury.
Headspace
Do not insert bolt assemblies from one rifle into another rifle.
Safety Distance
Bullets fired from this rifle may travel several miles. Make certain that you have
an adequate backstop.
Hearing protection
Hearing loss is permanent. Hearing loss from gunfire is cumulative, but the noise
from even one shot may cause permanent loss. Wear both ear plugs and ear
muffs. It is also your responsibility to protect the hearing of those around you.
1 Eye Protection
Eye protection should be worn when both shooting and maintaining your rifle. It is
normal for firing to generate air born dust and debris. Protect your eyes from
solvents and uncaptured parts under spring pressure while performing
maintenance on your rifle.
Assume every gun is loaded
Until you personally prove otherwise, treat every gun as if it were loaded. Do not
trust your memory and do not take anyone else’s word for it. Look and feel for an
empty chamber. Do not trust the extractor to provide an empty chamber.
Beware of barrel obstructions
Ensure the barrel’s bore is free of obstructions before you fire your rifle. Even the
smallest obstruction such as a stuck patch or even grease will cause increased
pressures that can rupture the barrel.
Muzzle control
Always keep the muzzle pointed in a safe direction. Never allow your muzzle to
point at anything that you do not intend to shoot.
Keep your finger off the trigger
Keep your finger off the trigger and out of the trigger guard until your sights are
aligned on your target and you intend to fire.
Keep your safety on
Keep your safety on until your sights are aligned on your target and you intend to
fire.
Identify your target and backstop
Before you pull the trigger, make certain of your target and what is beyond it. The
rifle should never be fired at surfaces where bullets are likely to ricochet in
unpredictable directions.
Failure to fire
If your rifle fails to fire when you pull the trigger, do not retract the charging
handle to open the action. Keep the rifle pointed toward a safe area and wait two
minutes. If a hang fire (slow ignition) has occurred, the round may fire within two
minutes. If the round does not fire, remove and inspect the cartridge. If the primer
is indented properly, discard it in a safe manner.
2 Maintain your rifle properly
Performing proper maintenance, as outlined in this manual, ensures that your
rifle will be safe to shoot and will perform to design specification for many years.
Alterations, modifications or adjustments may damage your rifle, make it unsafe
to fire and will void warranty claims.
Store your rifle safely
Even though your rifle represents a significant financial investment, the greatest
value in keeping it secured is preventing it from falling into the hands of a child, a
careless adult, or a thief. It is your responsibility to take every reasonable
precaution to secure your rifle.
Alcohol, medications and drugs
Do not handle or operate your rifle under the influence of alcohol, medication or
drugs.
3 WARRANTY AND SERVICE
Barrett Firearms Manufacturing Inc. (BFMI), warrants that this firearm was
manufactured free of defects in materials and workmanship. For one year from
the date of purchase by the original owner, BFMI agrees to correct any defect in
this firearm for the original purchaser by repair or replacement with the same or
comparable model.
BFMI will not be responsible for injury, death, or damage to property resulting
from either intentional or accidental discharge of this firearm or from its function
when used for purposes or subjected to treatment for which it was not designed.
BFMI will not honor claims involving this firearm which result from careless or
improper handling, unauthorized adjustment or parts replacement, corrosion,
neglect, the use of the wrong caliber ammunition, or the use of other than
commercially manufactured ammunition in good condition, or any combination
thereof.
If you need factory service, whether made under warranty or not, please contact
BFMI for instructions on how to have your firearm repaired.
Barrett Firearms Manufacturing Inc.
P.O. Box 1077 Murfreesboro, TN
37133-1077 615-896-2938
www.barrettrifles.com
Your Responsibility
Your Barrett firearm is well-engineered and manufactured to the highest
standards. It was carefully inspected before it was packaged and shipped from
our factory. Its safe use depends on you alone. You are the ultimate safety
device. Much like other mechanical devices, such as a power tools, gas-powered
lawn equipment, and automobiles, your firearm is safe unless handled in an
irresponsible or uneducated manner.
4 TABLE OF CONTENTS
Use of this manual
1
Safety
2-3
Warranty and Service
4
Table of contents
5
Specifications
6
Contents
7
Function
8
Break-in
8
Loading
9-10
Unloading and Clearing
11-13
Disassembly and Assembly
14
Disassembly of Upper Receiver Components
15
Disassembly of the Bolt Carrier Assembly
16
Disassembly of the Bolt
16
Disassembly of the Piston System
17
Disassembly of the Piston System (If Applicable)
18
Front and Rear Sight Adjustment
19-20
Removal of Handguard
21
Disassembly of Lower
22
Cleaning and Lubrication
23
Operating Under Unusual Conditions
24
Troubleshooting
25
Exploded Views and Parts Lists
26-27
Exploded Views and Parts Lists
28-29
5 SPECIFICATIONS
BARRETT REC7
CALIBER
6.8mm x 43 mm
BARREL LENGTH
16 Inches
OVERALL LENGTH (STOCK COLLAPSED)
33.25 inches
OVERALL LENGTH (STOCK EXTENDED)
36.625 inches
WEIGHT (WITHOUT MAGAZINE)
7.62 pounds
MAGAZINE WEIGHT
0.56 pounds
MAGAZINE WEIGHT (30 CARTRIDGES)
1.62 pounds
TWIST RATE
1 turn in 10 inches, right hand
NOMINAL MUZZLE VELOCITY
2550 ft/sec
SAFETY
Manual, thumb lever
SCOPE RAIL
Parallel with bore, Mil-Std 1913
Figure 1. REC7
6 CONTENTS
Your REC7 rifle system includes the following:
REC7 Rifle
1 Magazine
Operator’s Manual
The rifle is shipped from the factory fully assembled.
Figure 2. Fully assembled rifle with magazine installed.
7 FUNCTIONS AND FEATURES
The REC7 is a self-loading, gas piston-operated, magazine-fed, shoulder fired
rifle that includes a flash hider. User selected accessories may be mounted on
Mil-Std 1913 rail segments on all four quadrants of the handguard. The chamber
and bore are chrome plated. The gas block serves as a housing for the gas plug
and offers additional mounting space for accessories on the Mil-Std 1913 rail.
BREAK–IN PROCEDURE
Because individual barrels, powder, primer and bullet combinations vary widely
and because shooters have strongly held personal opinions on the subject,
Barrett does not offer a specific procedure for barrel break-in. Barrett does
recognize that a clean barrel shoots better. Barrett also recommends that you do
not overheat your barrel, especially your new barrel. Experience has shown that
the bore becomes less prone to fouling over time and that accuracy may
increase as this occurs.
8 LOADING
WARNING
Point muzzle in a safe direction.
1. Insert a loaded magazine fully into the magazine well. Insert the magazine
until the magazine catch engages and holds the magazine. Tap the
magazine upward to ensure the magazine is fully seated. (Figure 3).
Figure 3.
2. Before pulling the charging handle, disengage the charging handle lever
with index finger on left side of handle. Pull charging handle back with
index and middle fingers. Once the charging handle is in the rear most
position, release handle with both fingers and let the handle pull forward
without any assist. This will ensure the full force of the buffer spring is
utilized to chamber the first round. (Figure 4). Figure 4. 9 LOADING
3. Place safety selector switch to SAFE position until ready to operate.
(Figure 5).
Figure 5.
Note
The hammer must be cocked in order for the selector to be placed on “SAFE”.
FIRING
Move the selector switch to fire to enable trigger movement to fire. (Figure 6).
Figure 6.
10 UNLOADING AND CLEARING
Note
The hammer must be cocked in order for the selector switch to be placed on “SAFE”
1. If able, place the selector switch on SAFE. (Figure 7).
Figure 7.
Note
The cartridge magazine should drop from the magazine well by its own weight.
2. Remove the magazine by depressing the magazine catch button and
assisting the cartridge magazine down. (Figure 8).
Figure 8.
11 UNLOADING AND CLEARING
3. To lock the bolt open, pull the charging handle and hold it rearward.
(Figure 9). While holding the charging handle rearward, depress the
bottom of the bolt catch. (Figure 10). Push the charging handle forward
until it latches. (Figure 11).
Figure 9
Figure 10
Figure 11
12 UNLOADING AND CLEARING
4. Visually and physically inspect the chamber to ensure that it is empty.
(Figure 12).
Figure 12.
5. Place the selector switch on SAFE. Press the upper portion of the bolt
catch to allow the bolt assembly to close. (Figure 13). Repeat steps 3-5 to
ensure rifle is unloaded and cleared.
Figure 13.
13 DISASSEMBLY AND ASSEMBLY
This rifle disassembles into two primary assemblies:
1. The upper assembly (Figure 14).
Figure 14.
2. The lower assembly (Figure 15).
Figure 15.
Separating the Upper and Lower Receivers
1. Ensure rifle is unloaded and clear by following the steps in the previous
section. With the safety on and bolt closed (Figure 16), push the takedown
pin (rearward most pin) until it clears its detent then pull it until it stops.
Push the pivot pin (forward most pin) until it clears its detent then pull it
until it stops. (Figure 17). Separate the upper and lower receivers.
Figure 16
14 Figure 17
DISASSEMBLY OF UPPER RECEIVER COMPONENTS
1. On a work surface, turn the upper receiver upside down. Pull back the
charging handle and withdraw the bolt carrier assembly. (Figure 18).
2
1
Figure 18.
2. Next, lift the charging handle out of its track and remove it. (Figure 19).
Figure 19.
15 DISASSEMBLY OF THE BOLT CARRIER ASSEMBLY
1. Remove the firing pin retaining pin by pushing it through until it can be
gripped and pulled out. Remove the firing pin by sliding it out of the rear of
the bolt assembly. Remove the cam pin by lifting up. Pull the bolt
assembly from the bolt carrier. (Figure 20).
Figure 20. Bolt Carrier Assembly
DISASSEMBLY OF THE BOLT
Note
Disassemble the extractor and spring assembly only when dirty or damaged.
1. Use a pin punch to remove the extractor pin. (Figure 21). Applying
pressure to extractor will aid in removal of extractor pin. Be aware that the
extractor spring and extractor are in tension.
2. Remove the extractor and spring. (Figure 22).
Figure 21.
Figure 22.
Note
Bolt and extractor illustrated here may not reflect your configuration.
16 DISASSEMBLY OF PISTON SYSTEM
Note
Disassemble the gas piston and spring assembly only when dirty or damaged.
1. Depress gas plug detent. Rotate gas plug until plug notch aligns with gas
block shoulder. (Figure 23.)
2
If gas plug is heavily fouled and unable to be rotated by hand, insert 3/32 punch or similar tool into hole in gas plug to assist with rotation. 1
Figure 23.
2. Remove gas plug from gas block and tilt gun muzzle down. (Figure 24).
Gas piston will fall free through front of the gas block. (Figure 25).
Figure 24.
Figure 25.
Note
Gas block illustrated here may not reflect your configuration.
17 FRONT SIGHT OPERATION (if included)
1. To engage front sight, depress sight and slide the front sight latch
rearward. (Figure 26).
2. The front sight can be moved up or down when zeroing rear sight.
3. To increase elevation (raise point of impact of bullet), insert key and turn
clockwise. (Figure 27).
4. To decrease elevation (lower point of impact of bullet), insert key and turn
counterclockwise. Once rear sight is zeroed, front sight post should not be
moved. (Figure 27).
1
2
Figure 26.
18 Figure 27.
REAR SIGHT OPERATION (if included)
1. The low- profile rear sight can be engaged by depressing the springloaded flip-up lever. (Figure 28).
2. To change horizontal point of impact of bullet, rotate windage knob located
on the rear sight. This will move rear sight to left or right when zeroing.
(Figure 29).
3. Rotate windage knob clockwise to move point of impact of bullet to the
left. Rotate knob counterclockwise to move point of impact of bullet to the
right.
Figure 28
Figure 29.
19 REMOVAL OF HANDGUARD
1. Turn (A) screws 90° to unlock position. (Figure 30).
2. Loosen (B) screw. (Figure 30).
Figure 30.
3. Slide bottom half off of handguard while holding top half. (Figure 31).
Figure 31.
20 DISASSEMBLY OF LOWER RECEIVER
Caution
The disassembly of trigger components should be accomplished by a
qualified armorer.
Caution
The buffer is under strong spring pressure. If un-captured, it can be
launched from its tube and cause injury.
Note
Do not pull trigger while lower is disassembled from the upper. The hammer will
strike the bolt catch which may damage or break the bolt catch.
1. The retainer and the buffer spring must be held simultaneously in order to
remove safely. (Figure 32). Push on the buffer face while holding the
retainer down with another finger or a suitable tool. Carefully remove the
buffer with the buffer spring. (Figure 33).
Figure 32.
Figure 33.
21 CLEANING AND LUBRICATION
WARNING
Unload and clear the rifle before cleaning.
Caution
Do not insert cleaning rods through muzzle. The barrel crown could be
damaged which would severely degrade the accuracy of the rifle.
Cleaning procedure
1. The rifle should be cleaned and lubricated after each shooting session.
Regular cleaning prevents the corrosive effects of moisture.
2. Apply cleaning solvent to a chamber brush and clean the chamber. Barrett
Heavy Bore Cleaner is recommended.
3. Apply cleaning solvent to a bore brush and clean the bore. Barrett Heavy
Bore Cleaner is recommended.
4. Clean the flash hider with a stiff plastic brush and bore solvent. It is best to
clean the flash hider at the same time the barrel is being cleaned as the
bore solvent will help loosen carbon build-up on its interior walls.
5. Clean the bolt face with bore solvent. Use a stiff plastic brush to remove
carbon from both the extractor and the ejector. Depress the ejector and
extractor by hand to test their smooth function.
6. Use dry patches as necessary to remove cleaner from the bore and
chamber.
7. Clean the remainder of the rifle with cotton-tipped swabs, general purpose
brushes and cleaning clothes. Make sure all metal surfaces are coated
with preservative oil.
22 OPERATING UNDER UNUSUAL CONDITIONS
Unusual conditions are defined as any condition requiring special maintenance.
Perform maintenance outlined for the climate similar to your operational area.
Extreme Cold: When operating rifle in extremely cold temperatures, clean and
lubricate the rifle at room temperature if possible. Apply a light coat of
temperature appropriate lubrication to all functional parts. To prevent freezing,
keep rifle covered when moving from a warm to cold area. This will allow gradual
cooling. Keep rifle dry. Keep ammunition dry as frozen ammo can cause
malfunctions. Do not lubricate ammunition. Always keep bore free of snow. If
snow gets into the bore, clean the bore before firing using a clean patch and
cleaning rod.
Dust or Sand: Dust and sand can get into rifle and cause malfunctions and
excessive wear. Keep rifle covered when possible. Use lubricant sparingly.
Heavy Rain and Fording Operations: Perform maintenance in accordance with
normal cleaning procedures and apply thin coat of lubricant. Do not lubricate
ammunition. Always drain any water from barrel prior to firing. Dry the bore with
clean patch and cleaning rod.
Hot, Wet Climate: Perform maintenance more frequently. Inspect hidden
surfaces for corrosion. Clean and lubricate if corrosion is found. To prevent
external corrosion, remove handprints with oily cloth. Dry completely then
lubricate rifle. Never store rifle in a wet carrying case.
23 TROUBLESHOOTING
MALFUNCTION
CAUSE
CORRECTIVE ACTION
1. Failure to feed
1. Did not draw bolt carrier
fully to rear
2. Magazine not seated
3. Damaged magazine
4. Improper shooter
position
2. Failure to chamber
1. Damaged cartridge
2. Dirty or obstructed
chamber
1. Obstruction between
firing pin and bolt.
1. Faulty ammunition.
Primers dented in
center of sufficient
depth to fire
2. Obstructed firing pin
3. Hammer
4. Bolt not fully in battery
1. Retract bolt carrier fully
to the rear.
2. Seat magazine
3. Replace or repair
magazine
4. Clean and lubricate
5. Firmly shoulder the butt
stock.
1. Remove and replace
cartridge
2. Clean chamber
1. Disassemble and clear
obstruction.
1. Replace ammunition
2. Disassemble and clear
obstruction
3. Replace hammer or
hammer spring
4. Return complete bolt
assembly for repair
5. Push charge handle
fully forward and/or
forward assist.
1. Replace extractor
2. Replace extractor
spring
3. Clean extractor,
extractor
spring, and recess
4. Clean chamber and
insure ammunition is
clean
5. Clear with cleaning rod.
1. Replace ejector
2. Replace ejector spring
3. Clean ejector, ejector
spring, and recess
3. Failure to lock or unlock
4. Failure to fire
5.
Failure to extract
6. Failure to eject
7. Very hard recoil
24 1. Broken or worn
extractor
2. Broken or worn
extractor spring
3. Extractor not moving
freely
4. Dirty ammunition or
chamber
5. Broken case rim
1. Broken or worn ejector
2. Broken or worn ejector
spring
3. Ejector not moving
freely
1. Faulty or hot
ammunition
2. Improper shooter
position
1. Replace ammunition,
cool if hot
2. Firmly shoulder the
buttstock
(Intentionally left blank)
25 REC7 Parts List
PART NO.
DESC
QTY
PART NO.
DESC
68779-A
BUFFER ASSY
1
68714
SAFETY DETENT SPRING
QTY.
1
68780
BUFFER SPRING
1
82051-A
PISTOL GRIP
1
68758
RECEIVER EXTENSION
1
68736
LOCK WASHER
1
68757
BUTTSTOCK
1
68735
PISTOL GRIP SCREW
1
68772
RECEIVER EXTENSION NUT
1
68731-A
TRIGGER GUARD ASSY
1
68773
RECEIVER EXTENSION SPACER
1
68733
BUFFER RETAINER
1
68231
BOLT CARRIER
1
68734
BUFFER RETAINER SPRING
1
68112
CAM PIN
1
68728
TRIGGER
1
68111
FIRING PIN RETAINING PIN
1
68727
DISCONNECTOR SPRING
1
68110
FIRING PIN
1
68729
TRIGGER SPRING
1
1
68701
EXTRACTOR PIN
1
68726
DISCONNECTOR
68705
EJECTOR ROLL PIN
1
68722
PIVOT PIN
1
68704
EXTRACTOR
1
68725
TAKEDOWN/PIVOT PIN DETENT
1
68814
EXTRACTOR SPRING
1
68724
TAKEDOWN/PIVOT PIN SPRING
1
68813
EXTRACTOR SPRING INSERT
1
68719
MAGAZINE CATCH
1
1
68803
BOLT
1
68716
BOLT CATCH ROLL PIN
68706
EJECTOR SPRING
1
68715
BOLT CATCH
1
68707
EJECTOR
1
68718
BOLT CATCH PLUNGER
1
**
BARREL EXTENSION
1
68717
BOLT CATCH SPRING
1
**
BARREL
1
68712
SAFETY SELECTOR LEVER
1
68240
BARREL NUT
1
68711
HAMMER SPRING
1
**
BARREL EXTENSION PIN
1
68710
HAMMER
1
68253
CRUSH WASHER
1
68210
GAS BLOCK PINS
2
68222
FLASH HIDER
1
68802
GAS PLUG DETENT
1
68050-A
CHARGING HANDLE ASSY
1
68212
RATCHET PAWL SPRING
1
**
UPPER RECEIVER ASSY
1
68800
GAS BLOCK
1
**
LOWER RECEIVER
1
68242
GAS PISTON SPRING
1
68730
TRIGGER PIN
2
68250
GAS PISTON
1
68720
MAGAZINE CATCH BUTTON
1
68252
E CLIP
1
68721
MAGAZINE CATCH SPRING
1
68216
PISTON CAP
1
68732
TRIGGER GUARD PIVOT ROLL PIN
1
68046-A
MAGAZINE ASSY
1
82056
SAFETY DETENT
1
68771-A
HANDGUARD ASSY
1
ALTERNATE CONFIGURATION
PART NO.
DESC
QTY
**
DOUBLE SPRING EXTRACTOR
1
68703
EXTRACTOR SPRINGS
2
**
DOUBLE SPRING BOLT
1
68235
FRONT SIGHT POST
1
68237
FRONT SIGHT DETENT SPRING
1
68236
FRONT SIGHT DETENT
1
68234
FRONT SIGHT
1
82024
FRONT SIGHT PIN
1
68238
FRONT SIGHT LATCH
1
68239
FRONT SIGHT SPRING
1
68217
GAS BLOCK
1
68211
RATCHET PAWL
1
68251
RATCHET PAWL LEVER
1
68049-A
REAR SIGHT ASSEMBLY
1
**
26 CONTACT BFMI FOR ASSISTANCE
27 P/N 68700 REV B
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