Had some problems - Fostech MACH-2 AR-15 Tactical Rail

Fit and finish is awesome. I own both the 7" and the 13" version of these handguards, and i cant recommend either.

The 13" model weighs less than 6 oz WITH the barrel nut... crazy light. Id compare it to a par towel tube... it feels that light. That said, also feels very strong and i dont doubt the material.

Unfortunately the problem lies in the connection between the handguard and the barrel nut. The nut is machined smooth and doesnt provide enough friction to keep the HG in olace during rapid fire.

Both my 7" and my 13" have slipped on the barrel nut during use. The 7" was factory installed on ny Fostech Tomcat, the 13" was installed to spec by myself. Both eventually worked themselves loose.

I would love this product alongside their magalloy recievers if they simply put some knurling or some sort of friction inducing texture on the nut to grip the inside of the HG. Until then, I cannot recommend.

Ill be returning both to fostech for their (lengthy) warranty process. Unfortunately in a desparstr attempt to get one to properly sit on the nut, i overtorqued and stripped a mounting hole.

Great product, just needs revision. Ill let them know. Will be switching to the Aero Atlas S One for a proper handguard mlunt on a relatively ljghtweight HG.