J B Wood

The Gun Digest Book of Firearms Assembly/Disassembly Part V - Shotguns


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upper tang, and remove the sears and their springs downward and toward the rear.

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      26. Taking care not to damage the rear tips of the ejector trip rods, drift out the hammer pivot pin, and remove the hammers toward the rear.

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      27. Slide the ejector trip rods straight out toward the rear. Keep them separated, as they are not interchangeable.

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      28. Remove the barrel latch spring base screw, on the right side of the receiver, and take off the base and spring toward the rear.

      29. Drift out the large cross pin near one lower edge of the receiver.

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      30. Remove the cocking lever downward and toward the rear. Remove the screws at the top and bottom of the insert at the rear of the receiver tangs, and slide the insert (arrow) out toward the right.

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      31. Insert a drift punch in the opening on the underside of the receiver, against the lower end of the barrel latch lever shaft, and tap it gently upward for removal.

      32. The latch lever dog is retained in the lower end of the lever shaft by a cross screw that is contoured to match the curve of the shaft. Unless necessary for repair, the dog and screw should be leif in place.

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      33. Move the barrel latch block straight out toward the rear. It may be tight, and may require nudging with a drift to free it.

      Reassembly Tips:

      1. When replacing the small spacer block in the safety button slot, be sure it is installed between the two lower projections of the safety button, with the groove in the block at the rear and downward, as shown, to align with the spring cuts in the upper tang.

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      2. When replacing the barrel latch spring, note that its larger end goes toward the front, with the smaller end engaging the stud on the spring base.

      3. When replacing the barrel latch lever, move the barrel latch block to its normal protrusion at the front, and with the latch lever centered on the upper tang, tap the lever gently with a nylon hammer to seat the dog in its recess on the block. If the lever fails to move into place, use no extreme force. Move the locking block slightly until it is in proper alignment.

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      4. The ejector trip rods are usually marked for each side, the ones shown having a small "O" and "B" mark to signify "over" and "below." This is not always the case, though, and it's best to keep them separate during disassembly.

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      Similar/Identical Pattern Guns The same basic assembly/disassembly steps for the CBC Model 151 also apply to the following guns:

       F.I.E. SOB

       K-Mart Kresge Model 151

       RLE. SSS

       Magtech Model 151

Data: CBC Model 151
Origin: Brazil
Manufacturer: Companhia Brasileira de Cartuchos, Santo Andre Sao Paulo, Brazil
Gauges: 12, 16,20,410
Overall length: 46 inches (with 30-inch barrel)
Barrel length: 25, 26, 28, & 30 inches
Weight: 5-3/4 pounds

      Disassembly:

      The CBC Model 151 has in the past been imported by several U.S. firms, and had been sold by K-Mart, F.I.E., and others under several model designations. It is a good, solid and well-made gun that is priced comparatively low. The current importer is Magtech Recreational products of Las Vegas, Nevada.

      1. Pull the front of the forend away from the barrel until the latch releases, and remove the forend assembly.

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      2. Operate the barrel latch, open the action, and detach the barrel unit from the receiver.

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      3. A single Phillips screw retains the forend mechanism. When the screw is removed, a nut will be freed on the inside, so take care that it isn't lost.

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      4. The latch assembly is pivoted and retained by a cross pin. When the pin is drifted out, the small torsion-type positioning spring will be released, so restrain it. The head of the latch can be unscrewed from its shaft, and this will release the powerful latch spring. In normal takedown, this is best left in place.

      5. If the ejector is still in the recessed position, insert a tool in the hole in the spring guide to trap the spring. Use a tool at the front to push the ejector rearward.

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      6. Remove the ejector lever cross pin.

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