870/500 dissasembly differences...

hogdogs · September 15, 2009, 11:54 AM

QUICK!!!! I am holding Juniors new to him 870 Express MAg (Don't ask me why he wanted a 3 1/2 gun that weighs so little)... Still had plug so I opened the mag tube and got the spring retainer out (WITH MY FINGER

and removed plug... But I smelled that factory preservative so i am gonna do a filed strip on it for him. I see 2 TG pins I expect need pulled. The shell loader don't seem the same as a Mossberg. Mossberg just pops loose from holes in the receiver. Action bar removal and bolt are the last 2 concerns.
TIA
Brent

GeauxTide · September 15, 2009, 12:11 PM

Just punch out the pins on the receiver and the trigger group and shell follower come out as one unit. You can clean away with a toothbrush and not fool with the action bars and bolt. The only time I did a complete disassembly was duck hunting a mile from the Gulf.

hogdogs · September 15, 2009, 12:14 PM

I found the "Life, Liberty, etc" vid on youtube....
Brent

Dfariswheel · September 15, 2009, 06:54 PM

One advantage of the 870 is the ease at which it can be field stripped.
And, field stripping is all that's needed. Disassembly of the trigger group is no needed.

Here's an owner's manual that shows how to disassemble.
Its also recommended to disassemble and clean the magazine tube assembly too on a new gun, and periodically thereafter.
They'll also send you a manual free:

http://www.remington.com/library/dow...rs_manuals.asp

hogdogs · September 15, 2009, 07:39 PM

Dfaris, The video helped and it went back together fine. It was harder to get the action bars and bolt group in than my mossy. Had to push in on two springs which was a bit difficult with my mucked up arm.
Brent

USMCGrunt · September 16, 2009, 04:47 PM

And the disadvantage of the 870 is replacing parts. The shell latches are held in place by the trigger group and the ejector is held in by a screw on the Mossberg. On the Remington, these parts are staked in place and even when you restake parts back into the receiver, there is a finite number of times you can do this until you run out of receiver metal to perform another staking operation. Think this won't really happen? We had a few older 870s in the armory that were about 1 or 2 staking jobs away from being sent back to depot as unrepairable before we turned them back in for new 870MCS shotguns.

September 15, 2009, 11:54 AM	#1
hogdogs Staff In Memoriam Join Date: October 31, 2007 Location: Western Florida panhandle Posts: 11,069	870/500 dissasembly differences... QUICK!!!! I am holding Juniors new to him 870 Express MAg (Don't ask me why he wanted a 3 1/2 gun that weighs so little)... Still had plug so I opened the mag tube and got the spring retainer out (*WITH MY FINGER* and removed plug... But I smelled that factory preservative so i am gonna do a filed strip on it for him. I see 2 TG pins I expect need pulled. The shell loader don't seem the same as a Mossberg. Mossberg just pops loose from holes in the receiver. Action bar removal and bolt are the last 2 concerns. TIA Brent

September 15, 2009, 12:11 PM	#2
GeauxTide Senior Member Join Date: April 20, 2009 Location: Helena, AL Posts: 4,424	Just punch out the pins on the receiver and the trigger group and shell follower come out as one unit. You can clean away with a toothbrush and not fool with the action bars and bolt. The only time I did a complete disassembly was duck hunting a mile from the Gulf.

September 15, 2009, 12:14 PM	#3
hogdogs Staff In Memoriam Join Date: October 31, 2007 Location: Western Florida panhandle Posts: 11,069	I found the "Life, Liberty, etc" vid on youtube.... Brent

September 15, 2009, 06:54 PM	#4
Dfariswheel Senior Member Join Date: May 4, 2001 Posts: 7,478	One advantage of the 870 is the ease at which it can be field stripped. And, field stripping is all that's needed. Disassembly of the trigger group is no needed. Here's an owner's manual that shows how to disassemble. Its also recommended to disassemble and clean the magazine tube assembly too on a new gun, and periodically thereafter. They'll also send you a manual free: http://www.remington.com/library/dow...rs_manuals.asp

September 15, 2009, 07:39 PM	#5
hogdogs Staff In Memoriam Join Date: October 31, 2007 Location: Western Florida panhandle Posts: 11,069	Dfaris, The video helped and it went back together fine. It was harder to get the action bars and bolt group in than my mossy. Had to push in on two springs which was a bit difficult with my mucked up arm. Brent

September 16, 2009, 04:47 PM	#6
USMCGrunt Senior Member Join Date: February 27, 2000 Location: Somewhere in 14T NT Posts: 730	And the disadvantage of the 870 is replacing parts. The shell latches are held in place by the trigger group and the ejector is held in by a screw on the Mossberg. On the Remington, these parts are staked in place and even when you restake parts back into the receiver, there is a finite number of times you can do this until you run out of receiver metal to perform another staking operation. Think this won't really happen? We had a few older 870s in the armory that were about 1 or 2 staking jobs away from being sent back to depot as unrepairable before we turned them back in for new 870MCS shotguns.