You can polish a turd...

TrevorF

TrevorF

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...but it's still a turd.

So far I'm put in a Remington bolt carrier and trigger group. Might as well do the bolt next if it fits.:D
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As you know I have the fecal matter you talk about also, how did the carrier and other parts fit? the piece of cast in the bolt ( not sure what you call it but it has broken on some. Could the 870 be made to fit the 780 bolt? Also where is a good/cheap spot to pick up the remmy parts? Haven't fired mine yet . I would like to do the mods first!
have you fired yours since the parts change?
Still a cool gun and if the parts arn't to much, It would still be a good buy!
 
out of curiosity, why replace the bolt and bolt carrier that were manufactured with the gun? were they not functioning properly? did they fail?

the only thing turd-like i see is the saddle mount (+5 turd points) and the mag extension protruding beyond the barrel (+2 turd points).
 
Why not just buy an old remmy to start with?
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Already have one.
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I bought this thing for fun since it was only $90.

out of curiosity, why replace the bolt and bolt carrier that were manufactured with the gun? were they not functioning properly? did they fail?
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The bolt carrier did fail. I expect the bolt or at least the cast part on the top of the bolt to go next. I actually haven't tried the 870 bolt in it yet but I will soon. So far all the other parts fit and function properly during cycling and dry fireing. I'm off to test it now.
 
Interesting contravention of the Chicken Salad Rule, my friend.

How much wangling around did you have to do to make the Remington parts fit? I understood the 780 to be out of spec in pretty much every dimension, including some theoretical ones Steven Hawking knows about...
 
How much wangling around did you have to do to make the Remington parts fit?
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They all fit no problem at all.
I understood the 780 to be out of spec in pretty much every dimension, including some theoretical ones Steven Hawking knows about...
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The barrels aren't interchangeable. The receiver is longer and that makes the Remington stocks not fit correctly.
I took it out tonight and the shells wouldn't eject. I'm going to try my 870 bolt and see if it fits and if it solves the problem.
how did the bolt carrier fail? its a 1/4" thick piece of solid metal.
pics or it didnt happen
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Oh it happened!
BrokenCarrier.jpg
 
TrevorF said:
They all fit no problem at all.

The barrels aren't interchangeable. The receiver is longer and that makes the Remington stocks not fit correctly.
I took it out tonight and the shells wouldn't eject. I'm going to try my 870 bolt and see if it fits and if it solves the problem.


Oh it happened!
BrokenCarrier.jpg
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Got a shot of the cast piece? I seen it all busted from another guys gun, up on the original thread when we bought these, I think if that fits it may be all we need!
Also where do you get the 870 parts and is it worth it?
 
^WOW
Can you elaborate on what happened?

Personally if that happened on one of my cheapie shotguns I'm not sure I'd have the confidence to start swapping in parts and start shooting it again - much less if the parts were from an entirely different gun/manufacture and required hand-fitting.

870 components fit the current gen Grizzlies perfectly - I can swap in my bolt, carrier, triggergroup, barrel, etc and everything fits and indexes fine. This was not so with my first gen Grizzly or the Norc 780s I tried - pretty much nothing was interchangeable except for the stock. The receivers, barrels, bolts, etc were all well out of spec - which is why I wouldnt have recommended swapping in 870 parts.
 
This is like buying a Chinese dirt bike and then changing the parts out for Japanese parts. Should have just gotten the Japanese bike. I got a Chinese XZ250R that is a stright across copy for a 2004 - 2009 CRF250R. I got the forks from a 2006 CRF450R that a dude wiped out badly and gave me the forks off it. I also got a FMF powerbomb headers and muffler off of a 2005 CRF250R. I also got the swing arm, sprocket, and front and back aluminum rims to replace the chinese steel rims. At the end of the day, Its still a 26hp Chinese bike vs a 36hp Japanese bike and gets smoked on the track. People are impressed with it non the less.
 
I already have the Japanese bike so to speak.
I bought this cause of the novelty and I perhaps have more money than brains.

I suspect the reason for the bolt carrier failing was due to one too many slugs through it that day.
 
OK that failure is more impressive than my firing pin breaking in half on my 870.

And yes Ive had my share of issues with firing lots of slugs with the 870 as well
 
^i converted my friend's '60s vintage Wingmaster to 3" and hes fired hundreds of full-powered slugs through it. 'One too many slugs through it that day' is not a reason for an 870 to fail - you should have your gunsmith examine it closely and try to determine the cause.

Or by "I bought this thing for fun since it was only $90." did you mean you bought the gun after the kaboom for $90?
 
'One too many slugs through it that day' is not a reason for an 870 to fail
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My 870 didn't fail, my POS Norinco 780 failled so I've been replacing the Norinco parts in it with 870 parts.
I paid $90 for it new from SFRC back in January or February.
 
manbearpig said:
^i converted my friend's '60s vintage Wingmaster to 3" and hes fired hundreds of full-powered slugs through it. 'One too many slugs through it that day' is not a reason for an 870 to fail - you should have your gunsmith examine it closely and try to determine the cause.

Or by "I bought this thing for fun since it was only $90." did you mean you bought the gun after the kaboom for $90?
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I bet he wasnt putting 300-400 rounds in a span of a couple of hours.

It was a very warm 870 and then it started to misfire intermittently then stopped all together.

Firing Pin snapped ! We had replaced the entire internal assembly just to be safe and we redid the abusive stages again and it has been good since.
 
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