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Benelli M1S90
10/1/2010 10:38:22 AM
I have an older HK-marked Benelli M1 Super 90 shotgun with pistol grip stock and extended magazine tube. What options are there to modify/improve it for quicker shell loading (one shell at a time, I won't use the tubes) and to reliably function and properly cycle with lighter loads?
10/1/2010 2:02:34 PM
Originally Posted By hrt4me:
I have an older HK-marked Benelli M1 Super 90 shotgun with pistol grip stock and extended magazine tube. What options are there to modify/improve it for quicker shell loading (one shell at a time, I won't use the tubes) and to reliably function and properly cycle with lighter loads?
I have an older HK-marked Benelli M1 Super 90 shotgun with pistol grip stock and extended magazine tube. What options are there to modify/improve it for quicker shell loading (one shell at a time, I won't use the tubes) and to reliably function and properly cycle with lighter loads?
Switch the stock for a straight one and bevel the sides of the loading port. After that it's just practice...
Some people like to weld the lifter, but that's more about not getting the thumb stuck rather than speed.
10/1/2010 6:18:58 PM
Originally Posted By gosebubbe:
Switch the stock for a straight one and bevel the sides of the loading port. After that it's just practice...
Some people like to weld the lifter, but that's more about not getting the thumb stuck rather than speed.
Originally Posted By hrt4me:
I have an older HK-marked Benelli M1 Super 90 shotgun with pistol grip stock and extended magazine tube. What options are there to modify/improve it for quicker shell loading (one shell at a time, I won't use the tubes) and to reliably function and properly cycle with lighter loads?
I have an older HK-marked Benelli M1 Super 90 shotgun with pistol grip stock and extended magazine tube. What options are there to modify/improve it for quicker shell loading (one shell at a time, I won't use the tubes) and to reliably function and properly cycle with lighter loads?
Switch the stock for a straight one and bevel the sides of the loading port. After that it's just practice...
Some people like to weld the lifter, but that's more about not getting the thumb stuck rather than speed.
Do you have photos?
10/3/2010 9:07:07 PM
Here's some crappy iPhone pics of my M1:
I had help from a bad ass machinist. We clamped it horizontally in a mill and took about .075" from the bottom of the receiver between the trigger group and the mag tube using a 1/2 or 3/4" end mill. We then clamped it with the bottom of the receiver pointing straight up and beveled it with a 30° cutter. Then I filed, sanded and polished till it was smooth.
ML
I had help from a bad ass machinist. We clamped it horizontally in a mill and took about .075" from the bottom of the receiver between the trigger group and the mag tube using a 1/2 or 3/4" end mill. We then clamped it with the bottom of the receiver pointing straight up and beveled it with a 30° cutter. Then I filed, sanded and polished till it was smooth.
ML
10/3/2010 9:43:30 PM
mine looks about the same, but I used a dremel :)
10/3/2010 9:55:10 PM
Originally Posted By mjl978:
I had help from a bad ass machinist. We clamped it horizontally in a mill and took about .075" from the bottom of the receiver between the trigger group and the mag tube using a 1/2 or 3/4" end mill. We then clamped it with the bottom of the receiver pointing straight up and beveled it with a 30° cutter. Then I filed, sanded and polished till it was smooth.
I had help from a bad ass machinist. We clamped it horizontally in a mill and took about .075" from the bottom of the receiver between the trigger group and the mag tube using a 1/2 or 3/4" end mill. We then clamped it with the bottom of the receiver pointing straight up and beveled it with a 30° cutter. Then I filed, sanded and polished till it was smooth.
ML, thanks for the "crappy" cell phone pics! Looks good.
Would your bad ass machinist happen to be anywhere in north Texas?
10/5/2010 4:18:40 PM
Not anymore. He passed away back in March. I've got another guy that does damn good work though. PM me for info.
10/6/2010 1:52:55 PM
Benny at Triangle Shooting Sports down in Corpus Christi really knows how to tune them Benellis as well.
10/6/2010 2:27:10 PM
Originally Posted By gosebubbe:
Benny at Triangle Shooting Sports down in Corpus Christi really knows how to tune them Benellis as well.
Benny at Triangle Shooting Sports down in Corpus Christi really knows how to tune them Benellis as well.
Yup....Benny is known as THE man for benellis
10/6/2010 2:55:39 PM
Originally Posted By gosebubbe:
Benny at Triangle Shooting Sports down in Corpus Christi really knows how to tune them Benellis as well.
Benny at Triangle Shooting Sports down in Corpus Christi really knows how to tune them Benellis as well.
Thanks for the tip.
10/23/2010 11:43:27 AM
For loading quicker, weld up the lifter and bore out the loading port.
For shooting with lighter loads, mill the bolt.
For shooting with lighter loads, mill the bolt.
10/23/2010 8:57:35 PM
Originally Posted By 02NBMFormula:
For loading quicker, weld up the lifter and bore out the loading port.
For loading quicker, weld up the lifter and bore out the loading port.
My gunsmith has the shotgun and is doing this work right now.
Originally Posted By 02NBMFormula:
For shooting with lighter loads, mill the bolt.
For shooting with lighter loads, mill the bolt.
My understanding is that the Benelli M1S90 bolt does not need to be modified, as it is all in the gas system...?
10/23/2010 10:48:06 PM
Originally Posted By hrt4me:
My gunsmith has the shotgun and is doing this work right now.
My understanding is that the Benelli M1S90 bolt does not need to be modified, as it is all in the gas system...?
Originally Posted By 02NBMFormula:
For loading quicker, weld up the lifter and bore out the loading port.
For loading quicker, weld up the lifter and bore out the loading port.
My gunsmith has the shotgun and is doing this work right now.
Originally Posted By 02NBMFormula:
For shooting with lighter loads, mill the bolt.
For shooting with lighter loads, mill the bolt.
My understanding is that the Benelli M1S90 bolt does not need to be modified, as it is all in the gas system...?
The M1S90 does not have a gas system. It will run with a factory bolt but it can be picky based on the shooter's hold and ammo selection.
