Troy DI-07 7" Rail

[Benfiltness]

Simple question really, will this fit the rifle? I have one laying around and I wanted to know if it would be an adequate replacement for the factory Handguard,

 

[M&P15SportNoob]

Simple question really, will this fit the rifle? I have one laying around and I wanted to know if it would be an adequate replacement for the factory Handguard,

The standard rail length is 9.2". I don't think it will fit.