Mossberg 500 Stock fit Hi-Standard Riot 7 (K-120)?

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JohndeFresno
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Mossberg 500 Stock fit Hi-Standard Riot 7 (K-120)?

Post by JohndeFresno »

I have a great old High Standard "Riot 7" 18-inch 12 gauge pump gun that I want to marry to a folding pistol grip stock. This is still legal in my state if your shotgun is not a semi-auto.

I am unable to find any folding stock manufacturers who specify that their equipment will fit my shotgun, which is no longer manufactured. However, I note that at least one firm makes one for the Mossberg 500, which might have the same stock mount as mine with its single centered bolt.

Here is a schematic of mine, showing the raised lip around the stock mounting hole.

Image

Does anybody own both shotguns, or know if they mount the stock in the same way? A glance at one schematic for the Mossberg seemed to indicate that they are quite similar. It appears that I will have to order the folding stock via an Internet marketer, so I won't be able to just view it locally.
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gamekeeper
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Re: Mossberg 500 Stock fit Hi-Standard Riot 7 (K-120)?

Post by gamekeeper »

It certainly looks similar, pity I don't live nearer, I have an old Mossberg stock you could try for size.
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JohndeFresno
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Re: Mossberg 500 Stock fit Hi-Standard Riot 7 (K-120)?

Post by JohndeFresno »

gamekeeper wrote:It certainly looks similar, pity I don't live nearer, I have an old Mossberg stock you could try for size.
A bit too far for a drive, this evening. But thanks anyway!
765x53
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Re: Mossberg 500 Stock fit Hi-Standard Riot 7 (K-120)?

Post by 765x53 »

High Standard model 120, even better known as the J. C. Higgins model 20.
JohndeFresno
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Re: Mossberg 500 Stock fit Hi-Standard Riot 7 (K-120)?

Post by JohndeFresno »

765x53 wrote:High Standard model 120, even better known as the J. C. Higgins model 20.
Interesting - I did not know that Sears, ever put out a short barreled, extended capacity shotgun.

For various reasons and time limits involved, I have taken the plunge and ordered an ATI folding shotgun stock that fits "Most 12 GA Maverick 88, Mossberg 500/535/590/835, Remington 870 and Winchester 1200/1300 Shotguns," per their posting. I figure that a gunsmith might help me to modify the equipment if absolutely necessary, since this will be a permanent thing.
Image

This is a photo from their website


When I practiced religiously with this stakeout gun sans stock, I would hold it up to sight level, lock my arms to keep it from hitting my head and hit targets with slug and shot at a fair distance. With full force loads, that technique is pretty rough on the bent right wrist, and I'm "a few" years older now. I would prefer to have my joints last a bit longer, but it's good to have a close quarters weapon at the same time. A folding shoulder stock is the obvious solution.

Image

The weapon did not come shiny, by the way. I had it bead blasted and chromed after it started rusting from being in some cold weather in a trunk too long. Then, a camo sleeve covered up the glare when necessary. Were it more modern times, I would have had a dark Cerakote or other epoxy finish applied. Simple vanity propelled me to Varathane the slide as seen here.

Since the folding stock levers up over the firearm in an angling motion, I guess that will make my shotgun a Levergun!
JohndeFresno
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Re: Mossberg 500 Stock fit Hi-Standard Riot 7 (K-120)?

Post by JohndeFresno »

The kit arrived. FYI for other owners of the K120 High Standard shotgun, one of the two adapter pieces that come with the folding stock will mate the folding stock and pistol grip to the Riot 7.

But it requires a little drilling inside the adapter to allow for a long base piece that comes out of the back of the trigger mechanism, and a different bolt than you find in the package; a longer one that the one with the proper thread that fits for the High Standard.

It is a fit, but not a perfect fit. Were I to know what I know now, I would merely invest in one of the shotguns in (with a short barrel) that the ATI site specifies for this stock works for.
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