Knoxx spec ops stock on 870 clone- range report.

5440fight

5440fight

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Ok, I picked up a Norinco rem 870 clone. It came with a folding stock with the worlds smallest, hardest recoil pad. Having two Lee Enfield no4 mk5s (jungle carbines), I know small is bad when your talking about recoil pads! Picked up a Knoxx recoil reducing "spec ops" stock, remington rail mount, and red dot site.

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Ok- range report with Knoxx Spec ops recoil reducing stock (hereafter refered to as "knoxx"). Nice fit, snugged up pefectly. Single allan key bolt (included) was a little awkward because stock handle prevents full turn, and head of bolt is out of sight. After assembly there is no movement from components at all- solid! Four adjustments for length, same method as car15 stocks. Out to the range! I used winchester 2 3/4" rifled hollowpoint 1 oz slugs. ($16 for 15 at Canadian tire), and set up at 25m. BOOOM! Big heave and roar as I punched a 1.5" hole slightly low and left of bullseye. Lots of movement, but very little kick. In particular, your forehand moves with the actions recoil, but really just a heave at the stock. I'm only 150lbs, so I'm not exagerating to seem tough, I own lots of mean kickers (mauser in 30-06, jungle carbines, m44's) and this was fine. I proceeded to dump 30 rounds down range with no ill effects (the last 15 at 50m). A little odd feeling, but nice and easy. My range won't allow buckshot at targets so no go in that dept. yet, but word is almost no recoil! Two big thumbs up, and no sore shoulder, even the morning after.
 
Some parts aren't spec obviously, not sure though. FYI the Grizzly and HP-9 are made in the same factory. I can switch any part between the two except for the Knoxx.
 
On 5440fight's advice I bought a Knoxx stock from Specialty Shooting Sports Outdoors in Creston, BC.

At first it didn't fit properly. I tried many times, each time I turned the bolt in as far as it would go and the stock always stayed about a centimetre away from the receiver -- that is to say that the bolt wouldn't go in all the way. It was possible to hold the stock flush with the receiver, but the bolt wouldn't hold it there. Seeing as how I have a cheap Norinco clone (JY12-1) rather than a real 870 and after reading about B's problems with the HP-9 I assume this might be due to the dimensions being slightly different.

I've been reading a bit about gunsmithing and since the only problem was the bolt not going in all the way I figured I could bypass the bolt and attach the stock using a technique called sweating. Basically, one applies flux to the two ends which are to be joined, holds them together with a snugly clamp, heats the area with a torch, and applies solder which works its way into the joint and forms a tight bond.

I applied flux to the end of the receiver and the stock. Then, not wanting disregard the bolt completely, I proceeded to tighten the bolt as far as it would go. Much to my surprise it went all the way in -- I didn't have to solder anything. This was rather strange since I tried many times prior to get the bolt to go in. I guess the flux acted as a lubricant for the bolt. If you're struggling to attach your stock you might want to try using some gun oil, I guess. Here's a picture of my shotgun right after I attached the stock, you can see the tools I was about ready to use:



I'm going to do some trap shooting this evening so I'll post about experiences using the new stock there in about 18 hours.
 
Just run a 1/4 28 tap in the nut of the norinco and that will let you use the bolt that comes with the norinco .
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Vizier said:
On 5440fight's advice I bought a Knoxx stock from Specialty Shooting Sports Outdoors in Creston, BC.

At first it didn't fit properly. I tried many times, each time I turned the bolt in as far as it would go and the stock always stayed about a centimetre away from the receiver -- that is to say that the bolt wouldn't go in all the way. It was possible to hold the stock flush with the receiver, but the bolt wouldn't hold it there. Seeing as how I have a cheap Norinco clone (JY12-1) rather than a real 870 and after reading about B's problems with the HP-9 I assume this might be due to the dimensions being slightly different.

I've been reading a bit about gunsmithing and since the only problem was the bolt not going in all the way I figured I could bypass the bolt and attach the stock using a technique called sweating. Basically, one applies flux to the two ends which are to be joined, holds them together with a snugly clamp, heats the area with a torch, and applies solder which works its way into the joint and forms a tight bond.

I applied flux to the end of the receiver and the stock. Then, not wanting disregard the bolt completely, I proceeded to tighten the bolt as far as it would go. Much to my surprise it went all the way in -- I didn't have to solder anything. This was rather strange since I tried many times prior to get the bolt to go in. I guess the flux acted as a lubricant for the bolt. If you're struggling to attach your stock you might want to try using some gun oil, I guess. Here's a picture of my shotgun right after I attached the stock, you can see the tools I was about ready to use:



I'm going to do some trap shooting this evening so I'll post about experiences using the new stock there in about 18 hours.
Click to expand...
 
Vizier; Glad it worked out, "no sweat" if you'll pardon the pun. Word to the wise: keep your front paw a little loose and back on the foregrip. The front portion of the gun is going to move, you don't want that motion to "half pump" the action. No need to have the stock tight against your shoulder, let the stock do it's thing. Don't get your cheek too close or tight to things or you'll get a love tap when things move. Have fun, report back for us! Pics please.:)
 
I just picked up a Grizzly to keep my Valtro company in the trunk :p

Where can you pick one of them there fancy-shmancy Knoxx recoil-absorbing stocks? Is there a version which folds? Seems a shame to have purchased a folder just to go and install a fixed (abeit adjustable) stock.
 
Update - the Knoxx stock from Specialty Shooting Sports Outdoors in Creston, BC does indeed include a forend and after some fiddling I have everything installed on my 18.5 Grizzly Mag. Great prices and service and arrived at my door in less than 2 days!
 
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