MR1 LINE
1 Index USE • MAINTENANCE ................................................................ 1 Stock disassembly and assembly ............................................... 16 Basic safety rules ....................................................................... 2 Stock disassembly ..................................................................... 16 Introduction .............................................................................. 4 Stock assembly .................................
2 WARNING: PLEASE READ THIS MANUAL BEFORE HANDLING YOUR FIREARM. WARNING: FIREARMS CAN BE DANGEROUS AND CAN POTENTIALLY CAUSE SERIOUS INJURY, DAMAGE TO PROPERTY OR DEATH, IF HANDLED IMPROPERLY. THE FOLLOWING SAFETY RULES ARE AN IMPORTANT REMINDER THAT FIREARM SAFETY IS YOUR RESPONSIBILITY. 1. NEVER POINT A FIREARM AT SOMETHING THAT IS NOT SAFE TO SHOOT. Never let the muzzle of a firearm point at any part of your body or at another person. This is especially important when loading or unloading the firearm.
3 Make sure the chamber and barrel are free from any obstruction, like a bullet blocked inside the barrel due to defective or improper ammunition. 7. USE PROPER AMMUNITION. Only use factory-loaded, new ammunition manufactured to industry specifications: CIP (Europe and elsewhere), SAAMI® (U.S.A.). Be certain that each round you use is in the proper caliber or gauge and type for the particular firearm.
4 Introduction Operation Benelli Armi S.p.A. proudly presents the new MR1 line of semi-automatic rifles, that are the result of Benelli’s Research and Development Centre’s operational efficiency, added to Benelli’s extensive technical experience and skilled constructional engineering. Before beginning any operation whatsoever on your rifle, always make sure that chamber and magazine have been completely emptied! (Carefully read loading and unloading instructions).
5 Assembly (from packaged rifle) Pieces contained in the package (fig. 1): b a) stock-receiver-fore-end unit b) barrel-bolt unit a Assembly procedure 1 4 2 5 3 6 1) Slide the fore-end out (fig. 2). 2) Hold the stock-receiver-fore-end unit with one hand and with the other, unscrew the barrel locking cap (fig. 3). 3) Make sure hammer is cocked and if not, do so (fig. 4). 4) Unscrew the fore-end cap on the barrel-bolt unit (fig. 5).
6 NOTE: the fins on the piston must be lined up with the relative pins (fig. 8). 6) Lodge the end part of the cover into the receiver and push all the way in until the whole unit clicks into place at stroke-end, and fits snugly (fig. 9). WARNING: as the bolt link passes over the trigger guard it must fit itself into the recoil spring tube inside the receiver (fig. 10). 7 10 8 11 9 12 7) Fit the barrel locking cap to the end of the cylinder guide pin (fig.
7 WARNING: use enough force when screwing on the cap to overcome the contrast of the spring stopping the barrel, until the cap is fully against the cylinder guide pin. Rifle safety catch Press the safety button on the trigger guard until its red ring, indicating firing position, is no longer visible (figs. 16-17). 8) Slide the fore-end back on (fig. 13) and screw the fore-end cap back in (fig. 14). 9) Close the bolt by pulling it back and pressing the no load lever (fig. 15).
8 Loading Before beginning any operation whatsoever on your rifle, always make sure that chamber and magazine have been completely emptied! (Carefully read loading and unloading instructions). NOTE: make sure that your rifle is fitted with a magazine containing a number of cartridges permitted by legislation in the country where you intend to use it. NOTE: the prismatic magazine is automatically ejected by the rifle. Catch the magazine before it is released in order to avoid it falling.
9 You have now loaded the rifle. Move the safety catch into firing position (red ring is visible) and you are ready to shoot. Stripping procedure 1) Open the bolt (fig. 18). 2) Unscrew fore-end cap completely (fig. 26) and slide off the fore-end (fig. 27). Unloading procedure (The following steps must be carried out with the safety catch engaged - see previous “Rifle safety catch” point and care must be taken to point the barrel in a safe direction).
10 3) Fully unscrew the barrel locking cap (fig. 28), using the cap retaining pin of the assembly, if necessary. 4) Close the bolt back up by pressing in the bolt lever (fig. 15) and remove the barrel-assembly (fig. 29). 5) Take the bolt up to stroke end (fig. 30) and tear off the arming bolt (fig. 31). 6) Extend locking head and rotate and remove bolt (fig. 32). 28 31 29 32 30 33 7) Slide out the firing pin retaining pin whilst keeping the firing pin and firing pin spring in place (fig. 33).
11 8) Remove firing pin together with relative spring from the bolt (fig. 34). 9) Remove locking head pin out of its slot (fig. 35). 10) Slide bolt locking head from the bolt (fig. 36). 11) Disengage the magazine (fig. 37). 12) Remove the trigger guard pin bushes from the stock-receiver-fore-end unit (fig. 38). 35 38 36 39 37 40 13) Remove the trigger guard group by rotating it upwards (figs. 39-40).
12 Maintenance Before beginning any operation whatsoever on your rifle, always make sure that chamber and magazine have been completely emptied! (Carefully read loading and unloading instructions). Thanks to its extremely simple design and accurately chosen materials, the MR1 rifles do not require special maintenance.
13 Cleaning the gas collection system (figs. 43-44) WARNING: some ammunition uses powders with a specific make-up that tends to create significant deposits of combustion residues inside the gas collector. The gas collector is located back in the barrel, thereby facilitating the automatic cleaning of combustion residues after each firing cycle. These residues may, in any case, become denser, particularly after a long period in which the weapon has not been used, with the consequent risk of piston blockage.
14 3) Slide the locking head into the bolt making sure that the hole on the stem coincides with the bolt slot (fig. 49). 4) Fit the locking head pin into its hole on the locking head stem through the slot on the bolt (figs. 50-51). 5) Fit the firing pin and the firing pin spring into the slot on the bolt (fig. 52). NOTE: always double check to make sure that the firing pin spring is in place.
15 WARNING: if both firing pin and relative locking pin have been assembled correctly, the firing pin must appear as shown in figure 54. NOTE: do not use any type of tool for the insertion of the firing pin into the bolt carrier: only use your fingers! 7) Grip the bolt, making sure that you keep the head’s position extended (fig. 55). 56 8) Place the bolt into position as illustrated (fig. 56) and slide it forward until the bolt lever seat is aligned with the end of the slot (fig.
16 Stock disassembly and assembly Three fixed drop stock versions are available: 1) telescoping stock 2) standard stock 3) Pistol Grip stock 61 Stock disassembly 1 - Telescoping stock (fig. 59) 1) Press the lock button (fig. 60) and move the stock back as far out as it will go (fig. 61). 2) Press the lock button using more force to remove the stock completely (fig. 62). 3) As for grip disassembly unscrew the retaining ring nut by using the fore-end cap stop pin or a 5 mm diam. pin punch (fig. 63).
17 2 - Hunting stock (fig. 64) 1) Press on the buttpad and simultaneously exert a movement from below upwards (figs. 65-66). 2) Using a 13 mm socket wrench, slacken the stock screw, which is accessible from the rear after removal of the buttpad (fig. 67). WARNING: whilst completely removing the stock screw, take care not to lose the spring washer. This may easily happen as it is no longer withheld by the nut itself (fig. 68).
18 3 - Pistol Grip stock (fig. 70) 1) Press on the buttpad and simultaneously exert a movement from below upwards (figs. 71-72). 2) Using a 13 mm socket wrench, unscrew the stock nut, which is accessible from the rear after removal of the buttpad (fig. 73). WARNING: whilst completely removing stock screw, take care not to lose the spring washer. This may easily happen as it is no longer withheld by the screw (fig. 74).
19 Stock assembly 1 - Telescoping stock 1) For grip assembly, slip it into the recoil spring tube and tighten the retaining ring nut (figs. 76-77). 2) Install the telescoping stock (fig. 78), pressing firmly on the lock button and sliding the stock onto the recoil spring tube at the same time. 78 2 - Hunting stock 1) Remove the buttpad from the optional pistolgrip stock as described in fig. 66.
20 5) Energetically press the stock to the rifle, screwing the stock screw using a 13 mm wrench (fig. 81). 6) Assemble the buttpad, pressing it energetically against the stock in order to push it into its seat (fig. 82). 81 84 82 85 83 86 3 - Pistol Grip stock 1) Remove the buttpad from the optional pistol-grip stock as described in fig. 72. 2) Pointing the rifle towards the ground, fully insert the stock onto the recoil spring tube (fig. 83).
21 6) Assemble the buttpad, pressing it energetically against the stock in order to push it into its seat (fig. 86). GENERAL WARNING: once the stock has been replaced, make sure that it is correctly fixed to the receiver. After having fired the first few rounds, check everything again and if necessary, remove the buttpad once again and by means of the appropriate wrench, tighten stock nut further.
22 Rear sight adjustment Windage adjustment The rear sight can be adjusted for both windage and elevation if the standard factory setting does not meet shooter requirements. Using a coin or the rim of a shell cartridge to rotate the windage adjustment screw (fig. 87), located on the right side of the rear sight assembly, in the desired direction.
23 Spare Parts To order spare parts you must specify the gauge, the model and the serial number of your shotgun. Part numbers here listed refer to respective drawings.
24 Drawing 1 8 7 6 5 4 3 23 9 2 10 22 21 11 20 12 19 2 18 17 13 14 16 15 14 1
25 Pos. No. Code Description 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 001V 018A 285W 009V 025P 024P 281W 444W 002V 443W 008W 007J 410V 016W 013V 219V 220W 010W 306W 014W 215V 004V 003V Trigger guard assy Spring Pin Trigger Spring Pin Hammer link (R.H.) Hammer link (L.H.) Hammer Disconnector assy Safety plunger pin Safety spring Lever button Pin bush Hand safety button No-load indicator lever Spring Trigger pin Trigger pin Trigger guard Disconnector Spring Cap Pos. No.
26 Drawing 2 1 2 3 ✳ 4 ✳ 5 6 14 7 13 12 11 10 9 8
27 Pos. No. Code Description 1 2 3 4 5 6 7 8 9 10 11 12 13 14 025V 037V 035A 028A 411V 046W 045V 034A 074C 033V 031V 030V 029W 027W Firing pin Spring Pin Firing pin retaining pin Pin Ejector spring Ejector Extractor Extractor castor Spring Pin Bolt handle Link pin Link * Item not for sale separately from the barrel Pos. No.
28 Drawing 3 4 5 6 1 7 10 11 12 3 2 13 8 14 9 15 16 18 17 23 22 28 27 26 25 24 21 20 19
29 Pos. No. Code Description 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 059V 166V 054V 052J 050J 055W 049V 075J 015W 407V 295V 413V 269W 088V 298V 412V 399V 302W 069V 270W 066V 283V 282V 414V Receiver assy + recoil spring tube Recoil spring tube assy Spring Circlip Screw Recoil spring plunger Recoil spring tube Ring nut Pin Magazine plate Screw Roller Pin Plate Circlip Piston Extension assy Circlip Cap O-ring Pin Spring Catch lever assy Screw Pos. No.
30 Drawing 4 11 3 2 10 9 8 7 4 5 6 1 10 12
31 Pos. No. Code Description 1 2 3 4 5 6 7 8 9 10 11 12 127V 258J 253J 255J 254J 257J 126V 256J 259J 128W 253V 260V Rear sight assy Spring Rear sight aperture Ø 5 Screw Support Pin Rear sight support Screw Spring Torx screw Rear sight aperture Ø 1,5 Telescope support Pos. No.
32 Drawing 5 5 6 4 3 1 2
33 Pos. No. Code Description 1 2 3 4 5 6 307V 102V 035V 100V 097V 010A Magazine assy Magazine follower rest Spring Magazine follower Magazine body Pin Pos. No.
34 Drawing 6 4 6 5 10 11 7 3 9 2 13 1 10 23 11 22 21 25 24 12 8 14 15 16 17 20 18 19
35 Pos. No.
