82A Model 82A1 OPERATOR’S MANUAL
TABLE OF CONTENTS 2 MANUFACTURER’S DISCLAIMER 2 WARRANTY AND SERVICE 3 USE OF THIS MANUAL 3 SAFETY GUIDELINES 5 DESCRIPTION OF FIREARM 6 SPECIFICATIONS 7 BREAK-IN PROCEDURE 7 MAJOR COMPONENTS 7 SAFETY MECHANISM 8 BIPOD OPERATION 8 SIGHTS 10 ASSEMBLY OF MAJOR COMPONENTS 14 LOADING AND FIRING 17 UNLOADING AND CLEARING RIFLE 18 UNLOADING THE MAGAZINE 19 REMOVING THE MAINSPRING AND BUFFER 20 INSTALLING THE MAINSPRING AND BUFFER 21 CLEANING AND LUBRICATION 23
Model 82A1 MANUFACTURER’S DISCLAIMER 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.
barrett.net USE OF THIS MANUAL Read this manual before you handle the Model 82A1 Rifle. It is important that you understand the principles of safe gun handling in general and the 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.
Model 82A1 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. Upon firing, the muzzle device releases high-pressure gas from it’s ports that can damage objects or cause injuries, keep everything away from the vicinity of the muzzle. 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.
barrett.net STORE YOUR RIFLE SAFELY It is your responsibility to take reasonable precaution to secure your rifle, keep it properly secured and prevent unauthorized use. ALCOHOL, MEDICATIONS AND DRUGS Do not handle or operate your rifle under the influence of alcohol, medication or drugs. DESCRIPTION OF FIREARM - FIGURE 1 The Model 82A1 is a semi-automatic, recoil operated rifle chambered in .50 BMG or .416 Barrett. The rifle is fed from a 10 round detachable (.50 BMG) or fixed (.416 Barrett) magazine.
6 Manual thumb - lever Fixed front, Adjustable rear sights Safety Sights Manual thumb - lever Fixed front, Adjustable rear sights 20” (508 mm) 1:15 10 rounds Integral with Lower receiver - steel 29” (736.6 mm) 1:15 10 rounds Integral with Lower receiver - steel Barrel Length: Barrel Twist: Magazine Capacity: Stock: .50 BMG (12.7 x 99) Semi-Automatic 29.7 lbs (13.5 kg) 48” (1220 mm) 38” (965.2 mm) Lower 40.5” (1028.7 mm) Upper .50 BMG (12.7 x 99) Semi-Automatic 30 lbs (13.
barrett.net BREAK–IN PROCEDURE Barrett does not offer a specific procedure for barrel break-in other than checking for obstructions and using your new rifle. Experience has shown that the bore becomes less prone to fouling over time and that accuracy may improve with use. Ensure that the rifle is adequately lubricated and follow the loading/unloading and safety procedures when operating your rifle. MAJOR COMPONENTS - FIGURE 2 1. 2. 3. 4.
Model 82A1 BIPOD OPERATION The bipod assembly is used to fire from the prone position and assist in operator manipulation of the firearm. To reposition the bipod legs, pull each bipod leg away from the yoke (FIGURE 4-A) and rotate to the desired position (FIGURE 4-B). The bipod leg will lock into place (forward, rearward, and 90 degrees from the receiver). The bipod legs of the M107A1 extend to increase height. Pulling on the feet of the bipod causes the legs to extend.
barrett.net ZEROING PROCEDURE Using a bore collimator or laser bore sight, project to a 100 meter distance. Rotate the elevation adjustment knob on the rear sight to vertically adjust the aperture to be aligned with the collimator/ laser. Loosen the elevation scale screw (FIGURE 5) and adjust the scale to align the 100 meter mark with the aperture . Tighten the elevation scale screw then fire a test group to confirm zero.
Model 82A1 ASSEMBLY OF MAJOR COMPONENTS 1. Extend the bipod legs on the lower receiver and place the lower receiver on a level surface. FIGURE 6 2. The bolt carrier group is held in place under tension in the lower receiver by the midlock pin, which extends through a vent hole in the lower receiver and into the bolt carrier (FIGURE 7). (Both the midlock pin and the rear lock pin, located in a retaining hole in the end of the lower receiver, have finger rings to aid in removal.
barrett.net 3. Standing above and to the rear of the lower receiver, grasp the charging handle with the right hand, and carefully pull back (1), against tension, while withdrawing the midlock pin from its retaining hole (2). Allow the bolt carrier to come forward SLOWLY until there is no more spring tension and it rests in the lower receiver (3) (FIGURE 8). 2 1 3 FIGURE 8 4. Carefully pick up the upper receiver. The barrel will be nested inside for compact storage.
Model 82A1 WARNING THE TENSION ON THE BARREL SPRINGS IS APPROXIMATELY 70 lbs (32 kg). SERIOUS INJURY COULD RESULT IF SPRINGS ARE SUDDENLY RELEASED 5. The barrel springs at the front of the upper receiver are held in by the barrel key and the front barrel bushing. The rear lock pin can be locked into the barrel key to help provide additional leverage and create a handhold.
barrett.net FRONT BARREL BUSHING HINGE PIN FIGURE 11 8. While positioned directly behind the rifle, grasp the charging handle and pull rearward against mainspring tension so the bolt will clear the barrel extension when the upper receiver is lowered (FIGURE 12). FIGURE 12 9. Close the upper receiver onto the lower receiver. With the bolt retracted, the upper receiver should fit into the lower receiver easily without being forced.
Model 82A1 10. Place the midlock pin (shorter pin) through the midlock hole in front of the magazine well on bottom of the rifle until it is fully seated, locking the upper and lower receivers together. Insert the rear lock pin through the rear lock hole of the upper receiver to complete the mating of the receivers (FIGURE 14). FIGURE 14 WARNING THE RIFLE MUST NOT BE FIRED WITHOUT BOTH THE MIDLOCK AND REAR LOCK PINS FIRMLY IN PLACE. SERIOUS INJURY OR DEATH COULD RESULT. LOADING AND FIRING 1.
barrett.net 2. Ensure the safety lever is pointed towards “SAFE” (FIGURE 16). FIGURE 16 3. Insert the magazine into the magazine well in the lower receiver, with magazine tilted at approximately a 45° angle (bullet tips upward). Insert the front of the magazine hook to its hinge, located in the front of the magazine well (1). Swing the rear of the magazine up until it locks into place by means of the magazine catch (2) (FIGURE 17). It should lock in with an audible click.
Model 82A1 WARNING DO NOT ATTEMPT TO FORCE A CARTRIDGE INTO THE CHAMBER BY FORCING THE BOLT CLOSED. IF THE BOLT DOES NOT CLOSE EASILY, REMOVE THE CARTRIDGE AND EXAMINE IT FOR DAMAGE OR DEFECTS. CHECK THE CHAMBER FOR OBSTRUCTIONS. WARNING DOUBLE HEARING PROTECTION SHOULD BE WORN WHEN FIRING SINCE HARMFUL LEVELS OF NOISE ARE GENERATED. WARNING THE SHOOTER MUST BE POSITIONED DIRECTLY BEHIND THE RIFLE WITH THE RECOIL PAD HELD FIRMLY AGAINST THE SHOULDER.
barrett.net 7. The rifle may now be fired. The rifle will fire one round for each pull of the trigger, until the magazine and chamber are empty. WARNING THE BOLT DOES NOT AUTOMATICALLY REMAIN TO THE REAR WHEN THE RIFLE OR MAGAZINE IS EMPTY. ALWAYS PULL THE CHARGING HANDLE TO THE REAR TO INSPECT CHAMBER FOR AMMUNITION. 8. After the magazine is emptied, or you are done firing, place the safety lever in the “SAFE” position with the muzzle pointed in a safe direction and remove magazine.
Model 82A1 3. Pull the charging handle to the rear, and visually and physically check the chamber for ammunition (FIGURE 20). Insert a chamber flag into the ejection port to indicate the rifle is clear. FIGURE 20 WARNING RECENTLY FIRED BRASS MAY BE VERY HOT UNLOADING THE MAGAZINE - FIGURE 21 1. Hold the magazine in either the right or left hand, cartridges facing away from you. 2. Using the thumb of the other hand, push the cartridges forward and out one after another, until all are ejected.
barrett.net REMOVING THE MAINSPRING AND BUFFER 1. While maintaining constant control and pressure, rotate the buffer and spring to align the buffer notch with buffer stop on lower receiver (FIGURE 22). BUFFER STOP FIGURE 22 2. Allow buffer and mainspring to fully extend then remove (FIGURE 23).
Model 82A1 INSTALLING THE MAINSPRING AND BUFFER 1. Place buffer sleeve and mainspring into the lower receiver and align the buffer notch with the welded buffer stop of the lower receiver. (FIGURE 24). BUFFER STOP BUFFER NOTCH FIGURE 24 2. Push the buffer and mainspring into the lower receiver in one continuous, fluid motion. Once pushed past the buffer stop, rotate the buffer to lock it behind the buffer stop. (FIGURE 25).
barrett.net WARNING UNLOAD AND CLEAR THE RIFLE BEFORE DISASSEMBLY. ENSURE NO LIVE AMMUNITION IS PRESENT DURING DISASSEMBLY, ASSEMBLY, OR CLEANING. CAUTION DO NOT INSERT CLEANING RODS THROUGH THE MUZZLE. THE BARREL CROWN COULD BE DAMAGED WHICH WOULD SEVERELY DEGRADE THE ACCURACY OF THE RIFLE. CLEANING AND LUBRICATION 1. The rifle should be cleaned and lubricated after each shooting session. 2. Apply cleaning solvent to a chamber brush and clean the chamber. Barrett Heavy Bore Cleaner is recommended. 3.
Model 82A1 8. Lubricate the upper receiver along the bolt latch trip and the barrel at the barrel stop and front barrel bushing (FIGURE 26-A). 9. Lubricate the lower receiver along the bolt carrier rails, mainspring, and mainspring housing (FIGURE 26-B). 10. Lubricate the exterior surfaces of the bolt carrier and the neck of the bolt (FIGURE 26-C).
barrett.net WARNING TO PROTECT THE RIFLE FROM CORROSION, THE RIFLE AND THE INTERIOR OF THE CARRYING CASE SHOULD BE MOISTURE FREE BEFORE THE RIFLE IS PLACED IN THE CARRYING CASE FOR STORAGE. GENERAL MAINTENANCE 1. Ensure that all bearing surfaces and exposed parts, particularly those listed below, are clean and properly lubricated: • Barrel • Bolt and bolt carrier • Mainspring housing • Trigger assembly • Transfer bar assembly • Lower receiver 2.
Model 82A1 INSPECTION OF MAJOR COMPONENTS - FIGURE 27 The rifle’s major groups are packaged as shown below: 1. Upper Receiver 2. Bolt Carrier Group 3. Lower Receiver 4. Magazine 1 2 3 4 FIGURE 27 Ensure all components are present and inspect for damage. Detailed inspection should be conducted as follows: WARNING UNLOAD AND CLEAR THE RIFLE BEFORE INSPECTION. ENSURE NO LIVE AMMUNITION IS PRESENT DURING THE INSPECTION AND TROUBLESHOOTING PROCESS. INSPECTION: THE UPPER RECEIVER - FIGURE 28 FIGURE 28 1.
barrett.net 5. Check the front hinge pin slot in the front of the upper receiver to ensure that it is not deformed in any way. 6. The barrel should be clean and free of obstruction and oil. 7. All scope mountings should be tight, in good condition, and free of oil (iron sights, front and rear, may be lightly oiled at pivot points to prevent corrosion). INSPECTION: THE BOLT CARRIER GROUP - FIGURE 29 3 6 5 2 4 1 FIGURE 29 1.
Model 82A1 FIGURE 30 3. Push the bolt into the carrier and inspect for firing-pin protrusion. Check firing-pin hole (on bolt face) to ensure it is not eroded or elongated. Bolt face should not be pitted. 4. Swing the cocking lever (6) forward. The sear (3) should capture the firing-pin extension before the cocking lever is fully depressed.
barrett.net INSPECTION: THE LOWER RECEIVER - FIGURE 31 FIGURE 31 1. With bolt carrier in place, pull it rearward and check to see that the mainspring moves freely (full travel) and is not deformed. 2. Hold bolt carrier back and down approximately ¼ in (6 mm) under mainspring housing (sheet metal closure). With the thumb safety on “FIRE”, pull the trigger. Firing mechanism should function (a slight rise in bolt carrier is normal).
Model 82A1 TROUBLESHOOTING MALFUNCTION CAUSE CORRECTIVE ACTION Sluggish action FAILURE TO FEED FAILURE TO CHAMBER FAILURE TO COCK 28 Clean and lubricate or if cold check for over lubrication Check to see if the Replace the buffer if mainspring buffer is the head diameter is dragging over 1.850 in. Replace the buffer if showing excessive/uneven wear. Check Magazine: a. Proper a. Reinstall magazine Installation into the receiver b. Dirt/Debris b. Clean magazine c. Damage c.
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Model 82A1 MALFUNCTION FAILURE TO EJECT VERY HARD RECOIL 30 CAUSE CORRECTIVE ACTION Check for proper Remove, clean, movement of ejector lubricate or replace ejector and/or spring as needed Check for faulty/hot Replace or cool ammunition ammunition Check for damaged Replace/install or missing mainspring or buffer as mainspring/buffer needed Check for loose, Please contact Tech missing, damaged/ Support clogged muzzle brake
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Model 82A1 EXPLODED VIEW AND PARTS LIST Model 82A1 .
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34 1 1 1 1 1 1 1 1 1 1 1 2 1 2 2 2 Trigger Housing Pin Transfer Bar Pin Safety Transfer Bar Transfer Bar Detent Transfer Bar Spring Safety Detent Safety Spring Pistol Grip Screw Pistol Grip Washer Pistol Grip Recoil Pad Screw Recoil Pad Bipod Shim Bushing Yoke Mount Washer Yoke mount Nut Bipod Yoke 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 1 1 5 1 Trigger Spring Disconnector Spring 4 1 1 Trigger Disconnector 2 3 1 Lower Receiver Complete
2 1 1 1 1 2 1 1 1 1 Bipod Pin Rear Lock Pin Main Spring Buffer Bolt Carrier Accelerator Spring Accelerator Spring Screw Cam / Ejector Pin Cam Pin Assembly Accelerator Accelerator Rod 28 29 30 31 32 33 34 35 36 Firing Pin Pin 44 1 Sear Lever Pin Firing Pin Extension Sear Pin 41 42 Sear Lever 40 43 1 Sear 39 2 1 1 1 1 Sear Spring Sear Housing 37 38 2 2 27 2 Bipod Detent Bipod Spring 25 26 2 Bipod Screw 2 Bipod Leg Complete 23 24 67 88 87 86
Model 82A1 NOTES 36
P.O. Box 1077 Murfreesboro, TN 37133 USA 615.896.2938 615.896.7313 fax barrett.
