No it will not
For the Stoeger side-by-side shotgun, your best bet would be to use any of the standard Winchester choke tubes. They should fit well for you shotgun.
The shotgun in question uses a standard Tru-Choke.
Rem-Choke
Browning Invector.
NO! The 1187 barrel was for remington shotguns,the auto-5 shotgun is a browning shotgun.
The Invector, or "Standard Invector" system" was introduced in 1983. A few years later, the Invector-Plus chokes were introduced to fit the new back-bored shotgun barrels. These two choke systems will not interchange. If you have screw-in chokes in your shotgun barrel, the kind of system you have will be stamped on the barrel near the receiver. You must use the proper choke system for your shotgun.
Any mossberg 500 stock will fit
Take it to a gunsmith and ask him to measure it. He probably won't even charge you for something this simple. If you have a lot of shotguns to check, you can buy a gauge from him. If a dime does not fit down the end of the barral it was full choke. If it is a modified choke a dime will fit inside. Just my 2 cents
Just the manufacturer.The browning auto-5 shotgun was made by FN of belguim for browning between 1903-1975.After 1975 the browning auto-5 shotgun was made by Miroku of japan for browning,both companys made the same shotgun with the same patent of john m browning.While most in this country feel that the quality of the belguim made guns are far bettter(and there is some truth to this) The japan made firearms are of excellent quality,fit and finish.I know because I have owned both.
mossburge chokes r the same as stoegers
Briley makes choke tubes for Yildiz guns but only in 12 gauge Trulock is making them now in standard and extended versions. http://www.trulockchokes.com