11-08-2019, 03:08 PM
Not really Grendel specific but need some advise and this forum has the best folks on it.
My buddy wanted me to free float his stock S&W M&P Sport II. He found a quad rail from Omega Manufacturing he liked and bought it. After grinding down the A2 sight and installing the barrel nut we have run into a concern. The rail is EXTREMELY tight with the barrel nut, even with the two bolts on the bottom removed. We had to use a screwdriver to open the rail up a bit and a nylon hammer to seat it.
This will be the 4th rail I've installed on an AR platform, the other 3 were tight but not like this.
Since the barrel nut and rail are dissimilar metals, should we put anti-seize on the exterior of the barrel nut? Any downside to doing this? The rail has anti rotation tabs, 2 screws on the bottom to pinch the barrel nut, and 4 locking screws on the sides.
Appreciate peoples help on this
My buddy wanted me to free float his stock S&W M&P Sport II. He found a quad rail from Omega Manufacturing he liked and bought it. After grinding down the A2 sight and installing the barrel nut we have run into a concern. The rail is EXTREMELY tight with the barrel nut, even with the two bolts on the bottom removed. We had to use a screwdriver to open the rail up a bit and a nylon hammer to seat it.
This will be the 4th rail I've installed on an AR platform, the other 3 were tight but not like this.
Since the barrel nut and rail are dissimilar metals, should we put anti-seize on the exterior of the barrel nut? Any downside to doing this? The rail has anti rotation tabs, 2 screws on the bottom to pinch the barrel nut, and 4 locking screws on the sides.
Appreciate peoples help on this