mossbeg 500 18 in

firfightir · December 7, 2010, 03:53 AM

hey yall i just picked up the home defense 18 in barrel for my mossey 500.... when i got home i noticed that it wont fit on the standard magazine tube.... is it ment for the 8 shot tube???

Sportsman 12 · December 7, 2010, 09:59 AM

Define how it doesn't fit?

BANG · December 7, 2010, 10:02 AM

I, too, have a Mossberg 500 which I fitted with an 18-inch barrel. Mine fit. If the takedown screw is too far away from the magazine, then you may be right that is is for the 8-shot

The distance from the end of the barrel's flange that slides into the receiver to the inside edge of the flange holding the takedown screw is 15-13/16 inches on my 18-inch barrel.

Smitty in CT · December 7, 2010, 10:13 AM

If it's an 18-1/2" barrel it's made for the standard 5 shot mag tube....

If it's a 20" barrel, then it's made for the 7 shot mag tube....

What is stamped on the barrel???

hogdogs · December 7, 2010, 10:41 AM

Measure the distance from barrel tip to lug, I will do the same on mine...

The action is open when installing correct? "Capn' She won't go no further..."

Brent

Omaha-BeenGlockin · December 7, 2010, 11:53 AM

Set it next to the old barrel---if the lug spacings are even remotely close--I'd have to say operator error.

TheKlawMan · December 7, 2010, 06:07 PM

Take a look at this barrel chart. I aam newbie to this but have been figgering out what barrels I can add to what, and I don't think there is a Mossberg 18" barrel. There is an 18 1/2" and a 20". BTW there are also Maverick 88 barrles that will fit Mossbergs. I am guessing you got a 20" barrel for a 535 Mossberg security.

http://www.mossberg.com/products/acc...section=access

hogdogs · December 7, 2010, 07:46 PM

18 1/2 is called the 18.
Brent

Sportsman 12 · December 8, 2010, 10:37 AM

Pump it half way, line it up. There will be a 1/8 or so gap after you tighten the screw.

If you have the 7 + 1 shotgun or barrel, it won't even be close. More like 5inches difference.

May just be operator error in installing.

December 7, 2010, 03:53 AM	#1
firfightir Junior Member Join Date: December 1, 2010 Location: Ohio Posts: 5	mossbeg 500 18 in hey yall i just picked up the home defense 18 in barrel for my mossey 500.... when i got home i noticed that it wont fit on the standard magazine tube.... is it ment for the 8 shot tube???

December 7, 2010, 10:13 AM	#4
Smitty in CT Senior Member Join Date: August 30, 2006 Location: Moodus, CT Posts: 590	If it's an 18-1/2" barrel it's made for the standard 5 shot mag tube.... If it's a 20" barrel, then it's made for the 7 shot mag tube.... What is stamped on the barrel??? __________________ Smitty "The object of war is not to die for your country, but to make the other bastard die for his." -- Gen. George Patton

December 7, 2010, 11:53 AM	#6
Omaha-BeenGlockin Senior Member Join Date: December 13, 2001 Location: U.S.A. Posts: 1,183	Set it next to the old barrel---if the lug spacings are even remotely close--I'd have to say operator error. __________________ I take the leech that's bleeding me Can't stop to save my soul I take the leash that's leading me -------Metallica

December 7, 2010, 09:59 AM	#2
Sportsman 12 Member Join Date: September 18, 2010 Posts: 16	Define how it doesn't fit?

December 7, 2010, 10:02 AM	#3
BANG Member Join Date: March 13, 2010 Location: PA Posts: 69	I, too, have a Mossberg 500 which I fitted with an 18-inch barrel. Mine fit. If the takedown screw is too far away from the magazine, then you may be right that is is for the 8-shot The distance from the end of the barrel's flange that slides into the receiver to the inside edge of the flange holding the takedown screw is 15-13/16 inches on my 18-inch barrel.

December 7, 2010, 10:41 AM	#5
hogdogs Staff In Memoriam Join Date: October 31, 2007 Location: Western Florida panhandle Posts: 11,069	Measure the distance from barrel tip to lug, I will do the same on mine... The action is open when installing correct? "Capn' She won't go no further..." Brent

December 7, 2010, 06:07 PM	#7
TheKlawMan Junior member Join Date: June 23, 2009 Location: Orange County, CA Posts: 2,149	Take a look at this barrel chart. I aam newbie to this but have been figgering out what barrels I can add to what, and I don't think there is a Mossberg 18" barrel. There is an 18 1/2" and a 20". BTW there are also Maverick 88 barrles that will fit Mossbergs. I am guessing you got a 20" barrel for a 535 Mossberg security. http://www.mossberg.com/products/acc...section=access

December 7, 2010, 07:46 PM	#8
hogdogs Staff In Memoriam Join Date: October 31, 2007 Location: Western Florida panhandle Posts: 11,069	18 1/2 is called the 18. Brent

December 8, 2010, 10:37 AM	#9
Sportsman 12 Member Join Date: September 18, 2010 Posts: 16	Pump it half way, line it up. There will be a 1/8 or so gap after you tighten the screw. If you have the 7 + 1 shotgun or barrel, it won't even be close. More like 5inches difference. May just be operator error in installing.