tenringbound
CGN frequent flyer
- Location
- Atlantic Canada
Congrats on an amazing build! I honestly think you’d be sitting on a gold mine if you were able to produce these kits in quantity.
My Maverick 88 with Spas12 body kit
- Thread starter Triggerhappyace
- Start date
- Location
- ON, North of GTA
This is a great example of a labor of love, well done.
Gonna make liberal heads explode with "the shoulder thing that goes up"
Love it.
Gonna make liberal heads explode with "the shoulder thing that goes up"
Love it.
I really wonder why no aftermarket company that produces stocks has done a kit. I think it's probably getting a license to make Frenchi parts/Frenchi appearing parts, copyright infringement etc... maybe.
There's definitely a market, especially if it's reasonably affordable.
Took it out today!
So, I got to take it to a friend's farm and fired a box of slugs.
Recoil. Almost gone! There was very little recoil felt compared to the original stock. So it seems like all that metal atleast helps with that aspect.
Heatshield moved forward about 1/2". Maybe just needs tightening or because i polished the aluminum clamp blocks that clamp around the barrel, it's too smooth and maybe I'll have to apply from grit paint the the clamp block, silicone/rubber tape etc... to assist with the grip of the block and barrel.
I have to dig into why it's not feeding. It wouldn't feed from the mag tube into the elevator. That's why you see me manually load it. This was not a issue prior to the conversion. I'll have to dig deeper and see if I possibly didn't allow enough travel of the action arms or some sort of other issue.
***Found the issue. I had to shorten the bolt I used to secure the grip. Once I did the it now feeds and ejects without issues***
Grip felt solid and I didn't have any worries about anything else.
So, I got to take it to a friend's farm and fired a box of slugs.
Recoil. Almost gone! There was very little recoil felt compared to the original stock. So it seems like all that metal atleast helps with that aspect.
Heatshield moved forward about 1/2". Maybe just needs tightening or because i polished the aluminum clamp blocks that clamp around the barrel, it's too smooth and maybe I'll have to apply from grit paint the the clamp block, silicone/rubber tape etc... to assist with the grip of the block and barrel.
I have to dig into why it's not feeding. It wouldn't feed from the mag tube into the elevator. That's why you see me manually load it. This was not a issue prior to the conversion. I'll have to dig deeper and see if I possibly didn't allow enough travel of the action arms or some sort of other issue.
***Found the issue. I had to shorten the bolt I used to secure the grip. Once I did the it now feeds and ejects without issues***
Grip felt solid and I didn't have any worries about anything else.
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- Location
- On the edge of an "Inland Sea"
Wicked!!
EMT standing by!!
Got to play with a real one back in the early 90's......
EMT standing by!!
Got to play with a real one back in the early 90's......
Would love to buy the shotgun from ya and bring the parts in to a fab shop i know and see if they could make a full kit to sell later down the road to mav 88 owners!!!
So, I've continued tinkering... I took the steel action slide and added those large slots into it for a small amount of weight reduction (I didn't want to remake it out of aluminum at this time).
I also remade the folding stock out of aluminum. Added slightly larger holes in the stock and butt for even more weight reduction. All the pins are stainless. The steel stock I welded the tabs/ears on. With the aluminum I used hy-lok's originally to attach the "ears" onto the stock but swapped them out to bucked rivits for clearance of the sight when the stock is folded. I wanted to be able to change them if they were ever damaged or if I mis-drilled them vs having to cut and weld (I have to outsource aluminum welding).
I upsized the indexing pin for the butt, I found the previous one I used managed to bend (from recoil and/or carry) so made it impossible to actually retract and use/fold. I made sure that the butt is in full contact with the "ears" of the stock, so the pin won't be taking any recoil.
I hand made the rear sight out of aluminum as well. And welded a nut to a worm gear clamp that I was able to attach to the barrel that the sight screws into. This now allows the stock to fold over and latch into the rear sight like the real deal. I have yet to determine how accurate the iron sights will be, but I did get a red dot to attach to my rail, so that would handle that aspect. I used a high heat (350°F) fiberglass tape to protect the barrel from the clamp for the sight and heatsight from being marred.
I hand made the sling attachment in the grip out of aluminum as well - I just didn't trust the 3d printed nylon.
I used rubber o-rings as spacers on the pins for the folding stock and butt to keep things from rubber each other and scratching.
I'll post some more photos of the mechanisms and changes described later. These few photos are all I have tonight. And I'll get a new approximate weight.
I also remade the folding stock out of aluminum. Added slightly larger holes in the stock and butt for even more weight reduction. All the pins are stainless. The steel stock I welded the tabs/ears on. With the aluminum I used hy-lok's originally to attach the "ears" onto the stock but swapped them out to bucked rivits for clearance of the sight when the stock is folded. I wanted to be able to change them if they were ever damaged or if I mis-drilled them vs having to cut and weld (I have to outsource aluminum welding).
I upsized the indexing pin for the butt, I found the previous one I used managed to bend (from recoil and/or carry) so made it impossible to actually retract and use/fold. I made sure that the butt is in full contact with the "ears" of the stock, so the pin won't be taking any recoil.
I hand made the rear sight out of aluminum as well. And welded a nut to a worm gear clamp that I was able to attach to the barrel that the sight screws into. This now allows the stock to fold over and latch into the rear sight like the real deal. I have yet to determine how accurate the iron sights will be, but I did get a red dot to attach to my rail, so that would handle that aspect. I used a high heat (350°F) fiberglass tape to protect the barrel from the clamp for the sight and heatsight from being marred.
I hand made the sling attachment in the grip out of aluminum as well - I just didn't trust the 3d printed nylon.
I used rubber o-rings as spacers on the pins for the folding stock and butt to keep things from rubber each other and scratching.
I'll post some more photos of the mechanisms and changes described later. These few photos are all I have tonight. And I'll get a new approximate weight.
and yes i want the kit when you get it perfected LOL even have a Mav 88 doing nothing 
tenringbound
CGN frequent flyer
- Location
- Atlantic Canada
Looking great, Please keep at it!
As promised some better images. My spray can black dosnt seem to hold up too well at all. I'd imagine eventually it will be powdercoated if I liking everything.
The release from the front sight was modeled after the real thing as well.
You can see I got rig of the key rings for finger pulls and went to this washer style. Now theres no fumbling around looking for the ring, your finger tip can grab 360° around the washer and pull.
I attempted to illustrate how the worm gear rear sight attachment works.
I updated the heatshield 3d design to remove the other set of mounting seeing as I only actually was able to use the forward mounting pad. I have yet to reprint the shield though.
New weight is 8.4lbs. So doing all this shaved off around 3.6lbs. I think that's impressive and worth it.
YouTube video showing the operation of the folding stock.
As for a kit, I haven't crossed that bridge yet. The 3d stuff is easy. But to mass made the metal stuff I'd have to make jigs and it's lots of labor vs having the parts cast from aluminum or cnc'd. I can't see how to make it economical without a machine shop getting involved.
The release from the front sight was modeled after the real thing as well.
You can see I got rig of the key rings for finger pulls and went to this washer style. Now theres no fumbling around looking for the ring, your finger tip can grab 360° around the washer and pull.
I attempted to illustrate how the worm gear rear sight attachment works.
I updated the heatshield 3d design to remove the other set of mounting seeing as I only actually was able to use the forward mounting pad. I have yet to reprint the shield though.
New weight is 8.4lbs. So doing all this shaved off around 3.6lbs. I think that's impressive and worth it.
YouTube video showing the operation of the folding stock.
As for a kit, I haven't crossed that bridge yet. The 3d stuff is easy. But to mass made the metal stuff I'd have to make jigs and it's lots of labor vs having the parts cast from aluminum or cnc'd. I can't see how to make it economical without a machine shop getting involved.
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