RA MRAD® OPERATOR’S MANUAL
TABLE OF CONTENTS 2 2 4 5 5 5 7 7 8 8 8 8 9 9 10 10 11 11 11 12 13 13 14 15 18 19 20 21 23 26 USE OF THIS MANUAL SAFETY GUIDELINES WARRANTY AND SERVICE DESCRIPTION OF THE FIREARM CONTENTS SPECIFICATIONS MAJOR COMPONENTS FOLDING STOCK FOLDING STOCK ADJUSTMENTS MUZZLE BRAKE LOADING AND FIRING LOADING THE MAGAZINE INSERTING THE MAGAZINE OPENING THE BOLT SAFETY CONTROL CLOSING THE BOLT CYCLING THE ACTION UNLOADING THE RIFLE REMOVING THE MAGAZINE DISASSEMBLY AND ASSEMBLY OF THE RIFLE DISASSEMBLY OF THE MAJOR C
MRAD USE OF THIS MANUAL Read this manual before you handle the MRAD 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.
barrett.net 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 brake releases high-pressure gas from its side ports that can damage objects or cause injuries, keep everything away from the vicinity of the muzzle brake. ASSUME EVERY GUN IS LOADED Always treat every gun as if it were loaded. Look and feel for an empty chamber. Do not trust the extractor to provide an empty chamber.
MRAD 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 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.
barrett.net DESCRIPTION OF FIREARM The MRAD is a manually operated, bolt-action rifle. The rifle is fed from a 10 round detachable magazine. The firing pin assembly is cocked when the bolt handle is raised. The MRAD is a rugged configurable precision rifle system. The MRAD has been designed for complete system modularity, reduced logistical and operational burden, and maximum operator-level sustainability. Barrel changes for maintenance or reconfiguration can be completed with minimal use of tools.
MRAD CALIBER BARREL BARREL PROFILE LENGTH TWIST RATE OVERALL FOLDED LENGTH LENGTH WEIGHT BARREL WEIGHT 5.70/6.05lbs 6.90/7.25lbs 6.50/6.85lbs 14.05/14.40lbs 5.05lbs 13.65/14.00lbs 42.75" 12.20lbs 6.50/6.85lbs 12.85/13.20lbs 1 in 9.4 (237.49mm) 50.75" 40.75" 13.65/14.00lbs 6.50/6.85lbs 40.75" 1 in 9.4 (237.49mm) 48.75" 40.75" 13.65/14.00lbs 6.10/6.45lbs 36.75" Fluted / Non-Fluted 1 in 9.4 (237.49mm) 48.75" 40.75" 13.25/13.60lbs 5.05lbs 1 in 9.4 (237.49mm) 48.
barrett.net MAJOR COMPONENTS - FIGURE 2 1. 2. 3. 4. 5. 6. Upper Receiver Assembly Lower Receiver Assembly Bolt Assembly Magazine Assembly Rear Bolt Guide Front Bolt Guide 1 3 5 6 2 4 FIGURE 2 FOLDING STOCK The MRAD has a folding stock for ease of transport. To fold the stock, first close bolt assembly, then press the folding stock button (FIGURE 3-A) and swing the buttstock to the ejection port side (FIGURE 3-B), locking it firmly into place on the bolt handle knob.
MRAD FOLDING STOCK ADJUSTMENTS The folding stock is adjustable for height and length of pull. Loosen cheek piece knob to adjust cheek piece. The cheek piece assembly can be assembled with knob located on either the right or left side of the stock. Depress button (FIGURE 4-A) to adjust length of pull (FIGURE 4-B). CHEEK PIECE A B CHEEK PIECE KNOB FIGURE 4 MUZZLE BRAKE (FIGURE 5) The rifle may be equipped with a muzzle brake that has exterior threads to the rear of the muzzle brake ports.
barrett.net FIGURE 7 - INSERTING THE MAGAZINE 3. With the rifle pointed in a safe direction, lift the bolt handle (FIGURE 8-A) then pull it to the rear of the rifle (FIGURE 8-B).
MRAD 4. Near the safety lever the rifle will be depicted with either pictograms ( ) or a F (fire) or S (safe). Rotate the safety lever point to the “S” (SAFE) or position. (FIGURE 9) SAFETY LEVER SAFETY LEVER F (FIRE) AND S (SAFE) PICTOGRAM FIGURE 9 - SAFETY CONTROL 5. Push the bolt handle forward, then down (FIGURE 10, STEP A & B) which will strip a cartridge from the magazine, load the cartridge into the firing chamber, and lock the bolt into the barrel’s extension thus closing the firing chamber.
barrett.net WARNING DO NOT ATTEMPT TO FORCE A CARTRIDGE INTO THE CHAMBER BY FORCING THE BOLT CLOSED. IF THE BOLT WILL NOT CLOSE EASILY, REMOVE THE CARTRIDGE AND EXAMINE IT FOR DAMAGE OR DEFECT. CHECK THE CHAMBER FOR OBSTRUCTIONS. 6. Rotate the safety lever point to the “F” (fire) or (45 degrees). The rifle is now able to fire. position WARNING THE SHOOTER MUST BE POSITIONED DIRECTLY BEHIND THE RIFLE WITH THE RECOIL PAD HELD FIRMLY AGAINST THE SHOULDER.
MRAD MAGAZINE CATCH FIGURE 11 -REMOVING THE MAGAZINE 3. With the bolt fully to the rear, inspect the barrel chamber; ensuring it is empty of any fired case or cartridge. WARNING DO NOT STORE OR TRANSPORT A LOADED RIFLE. ALAWYS CHECK THE CHAMBER AND REMOVE THE MAGAZINE DISASSEMBLY AND ASSEMBLY WARNING UNLOAD THE RIFLE BEFORE DISASSEMBLY. ENSURE THAT LIVE AMMUNITION IS NOT PRESENT DURING DISASSEMBLY OR ASSEMBLY. DISASSEMBLY Disassembly of the rifle is divided into major 6 components.
barrett.net MAJOR COMPONENTS - FIGURE 12 1. Upper Receiver Assembly 2. Lower Receiver Assembly 3. Bolt Assembly 4. Magazine Assembly 5. Rear Bolt Guide 6. Front Bolt Guide 1 3 5 6 2 4 FIGURE 12 DETACHING THE LOWER AND UPPER RECEIVERS 1.
MRAD 2. Locate the receiver latch on the underside of the lower receiver just behind the pistol grip. Depress and hold the receiver latch while lifting and separating the upper receiver from the lower (FIGURE 14). The receiver latch will not depress unless bolt handle is up. RECEIVER LATCH FIGURE 14 3. Withdraw the bolt assembly, rear bolt guide, and the front bolt guide from the rear of the upper receiver. Take note to the orientation of the bolt guides while removing.
barrett.net ASSEMBLY PIN FIGURE 16 NOTE: NO FURTHER DISASSEMBLY OF THE RECEIVERS IS RECOMMENDED OR NECESSARY FOR OPERATOR LEVEL MAINTENANCE. DISASSEMBLY OF THE BOLT ASSEMBLY 1. With the bolt removed from the rifle, ensure that the cocking piece shroud is rotated to the fully cocked position.
MRAD 2. With the searing edge (FIGURE 17) firmly seated against a hard surface, pull on the bolt body to expose the two slots in the cocking piece (FIGURE 18). 3. Insert the bolt disassembly tool into the two slots to retain the cocking piece (FIGURE 18).
barrett.net 4. Rotate the cocking piece shroud counter clockwise about 120 degrees and withdraw from the bolt body (FIGURE 19) COCKING PIECE SHROUD BOLT BODY B FIGURE 19 A WARNING DO NOT REMOVE THE BOLT DISASSEMBLY TOOL FROM THE COCKING PIECE WHILE THE FIRING PIN ASSEMBLY IS REMOVED FROM THE BOLT BODY. THE FIRING PIN SPRING IS UNDER HEAVY LOAD. 5. Using a punch or other pointed object, push the bolt pin (FIGURE 20 - A) out of the bolt assembly.
MRAD NOTE: NO FURTHER DISASSEMBLY OF THE BOLT ASSEMBLY IS RECOMMENDED OR NECESSARY FOR MAINTENANCE. ASSEMBLY OF BOLT ASSEMBLY Assembly is the reverse order of its removal. REMOVING AND INSTALLING THE ACCESSORY RAILS Using a T-25 Torx wrench, remove the accessory rail screws. The rails can be installed anywhere along the 3, 6 and 9 o’clock screw locations on SLING BUSHING FIGURE 21 the upper receiver (FIGURE 21). The rail located at the 6 o’clock location is used to attach the bipod assembly.
barrett.net INDEXING SLOT BOLT HANDLE A BARREL RETAINING SCREWS FIGURE 22 INSTALLING BARREL 1. Insert the barrel into the upper receiver with indexing slot oriented in the up position ensuring the indexing slot engages the indexing pin in the upper receiver as the barrel is fully seated. 2. Slide bolt forward until the bolt head enters the barrel extension and lower handle to lock the bolt. 3. Torque the two barrel retaining screws to 140 in/lbs.
MRAD DISASSEMBLY OF THE MAGAZINE (FIGURE 23) 1. Locate the floorplate tab hole on the bottom of the magazine. 2. Using a punch or other appropriate tool, depress through the hole and hold the floor plate retainer tab. 3. Firmly press the sides of magazine body with thumb and finger near secondary retainer tabs and slide the floor plate forward and remove it from the magazine body. Note: the floor plate fit to the body is intentionally tight.
barrett.net CLEANING OF THE MAGAZINE Clean the entire magazine of debris paying special attention to the interior. DO NOT apply oil or lubrication to the inside the magazine body. Lubricate the surfaces of the magazine spring to prevent corrosion. ASSEMBLY OF THE MAGAZINE Assembly is in reverse order of disassembly. The MRAD has multiple magazines for different calibers identified by a letter at the bottom rear-side of the magazine, do not mix parts from other magazines.
MRAD 2. Slide the trigger module rearward disengaging its front retaining pin. 3. Lift out of the receiver (FIGURE 25). Installation of trigger module is performed in reverse of removal, noting that the safety detent needs to be depressed to insert the safety. FRONT RETAINING PIN FIGURE 25 4. Installation of trigger module is performed in reverse of removal, noting that the safety detent needs to be depressed to insert the safety. 5.
barrett.net SAFETY DETENT FIGURE 26 CLEANING AND LUBRICATION Materials used for cleaning can be found online at BARRETTRIFLES.COM WARNING THE RIFLE MUST BE UNLOADED AND ALL AMMUNITION REMOVED FROM AREA BEFORE CLEANING. CAUTION A BORE GUIDE IS USED WHEN CLEANING THE MRAD. ALWAYS USE THE ONE-PIECE COATED CLEANING ROD WHEN POSSIBLE. DO NOT INSERT CLEANING RODS THROUGH THE MUZZLE. THE BARREL CROWN COULD BE DAMAGED WHICH WOULD SEVERELY DEGRADE THE ACCURACY OF THE RIFLE.
MRAD 2. After use wipe down all surfaces of the muzzle brake with a gun cleaning solution such as Barrett Bore Cleaner or CLP and a rag. Remove any carbon build-up from the threads, exterior diameter, and internal port areas with a brush or rag. 3. Apply cleaning solvent to a chamber brush and clean the chamber. 4. Apply cleaning solvent to a clean cotton patch and clean the bore from the chamber to the muzzle using the bore guide and one-piece coated cleaning rod. 5.
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MRAD 6 5 2 19 1 4 20 3 22 23 25 21 29 24 30 38 27 26 32 33 33 43 28 31 39 34 42 37 46 4 36 41 73 35 40 45 44 47 58 48 50 51 68 61 55 52 67 66 59 49 56 54 26 60 57 53 62 63 64 65 69 70 71
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MRAD PART NAME REAR BOLT GUIDE FRONT BOLT GUIDE RECEIVER LATCH SEAT DP .125 X .365 UPPER RECEIVER TIME SERT INDEX PIN BARREL SCREW WASHER BARREL SCREW MUZZLE BRAKE MUZZLE BRAKE NUT BARREL COMPLETE EJECTOR EJECTOR SPRING BOLT EXTRACTOR SPRING RP .093 X .500 EXTRACTOR BOLT PIN BOLT CARRIER BOLT HANDLE KNOB FIRING PIN FIRING PIN SPRING COCKING PIECE SHROUD DP .093 X .500 COCKING PIECE RP .
P.O. Box 1077 Murfreesboro, TN 37133 USA 615.896.2938 615.896.7313 fax barrett.net P/N 12925 REV.
