5. For situations where a non-marring rap is needed, this hammer from Brownells is ideal. It is shown with nylon faces on the head, but other faces of plastic and brass are also available. All are easily replaceable.
6. For drifting out pins, these small all-metal hammers from B-Square are the best I've seen. Two sires (weights) are available and they're well worth the modest cost.
7. For situations where reach and accessibility are beyond the capabilities of sharp-nosed pliers, a pair of large sharp-nosed forceps (tweezers)will be invaluable.
8. One of the most-used tools in my shop is this nylon tipped drift punch, shown with an optional brass tip in place on the handle. It has a steel pin inside the nylon tip for strength. From Brownells, and absolutely essential.
9. A good set of drift punches will prevent a lot of marred pins. These, from Brownells, are made by Mayhew. The tapered punches at the right are for starting pins, the others for pushing them through. Two sizes are available-4 inches or 6 inches.
10. These punches by Mayhew are designed specifically for roll pins and have a projection at the center of the tip to fit the hollow center of a roll pin, driving it out without deformation of the ends. From Brownells.
11. Some of the necessary tools are easily made in the shop. These non-marring drift punches were made from three sizes of welder's brazing rod.
12. This firing pin bushing spanner wrench from B-Square adjusts to fit all bushing holes, from 3/16" to 7/16" spacing. The pins are replaceable.
13. Designed to fit the Winchester Model 12, this forend cap nut wrench from Brownells is also usable on several other slide-action shotguns.
14. One of three stock wrenches from B-Square, this one is designed especially for use on the Rernington Model 1100.
15. Conceived by former Gun Digest associate editor, Bob Anderson for B-Square, this handy tool is designed for pushing out the trigger group retaining cross pins in the Remington shotguns, and will work on several others. A rubber ring at the base of the shaft protects the side of the receiver.
16. Another of the B-Squarestock wrenches, this short version is designed especially for the Remington Model 870, but will work on several other guns.
17. This wrench from B-Square is for easy removal of the deeply recessed forend cap nut on the Remington Model 870.
18. For restaking the shell stops on several of the Remington shotguns, this heavy tool from B-Square makes an awkward job a simple operation.
Benelli Model 121 M1
Similar/Identical Pattern Guns The same basic assembly/disassembly steps for the Benelli Model 121 M1 also apply to the following guns:
Benelli Standard Autoloader
Benelli Model 121 Slug
| Data: | Benelli Model 121 MI |
| Origin: | Italy |
| Manufacturer: | Benelli Armi,S.p.A.,Urbino |
| Gauge: | 12 |
| Magazine capacity: | 7 rounds |
| Overall length: | 39-3/4 inches |
| Barrel length: | 19-5/8 inches |
| Weight: | 7 Ibs. 3 oz. |
The Benelli semi-auto shotgun has an unusual action, using neither gas nor long recoil. Instead, it has a prop-type locking bar that is released by a rebounding bolt head-a unique system. Importation and sales in the U.S. were formerly handled by Heckler & Koch, Inc. The present importer is Benelli U.S.A..
Disassembly:
1. Loosen the cross screw in the magazine tube hanger loop at the muzzle, and slide the hanger off toward the front. Cycle the action to cock the internal hammer, and set the safety in the on-safe position. Unscrew the knurled retaining nut at the front of the forend, and the nut and the sling loop toward the front. The nut unscrews counter-clockwise (front view).
2. Remove the barrel, upper receiver, and forend toward the front. It the gun is new and tight, it may be necessary to pull the bolt half-way back and release it several times, to start the assembly forward.
3. Tip the rear of the forend wood away from the barrel, and remove the forend downward and toward the rear. Remove the spacer ring and spring ring from the recess at the front of the forend. The rings will be released as the wood is taken off, so take care that they aren't lost.
4.