Tight Hand Guard

[ReddingShooter]

On my AR10 build I've got a DPMS barrel nut and a slide on Aero Precision free float hand guard. The fit is very tight, the hand guard only slides over the barrel nut maybe 1/8 of an inch before getting tight. I'm worried if I force it I may not get it all the way in place before getting too tight to move it or align the screws. (it needs to go forward another inch and a quarter) Has  anyone encountered this and if so, do you know of any tricks to loosen things up. I don't think oil or grease are going to solve this, it's really tight. Any advice would be greatly appreciated. Thanks

[survivalshop]

  Normally I would say I like them tight & I'm talking about slide on HG fitment , but there could be an issue . I'm going to assume the Barrel Nut came with the Aero HG kit  & some light grease may help , so may slight tapping the HG with a soft Mallet . Is the HG & Nut Cerakoted ?

[guruofhotrod]

I presume you're using the proper Aero barrel nut? If so, perhaps try a heat gun on the handguard to expand it slightly.

[ReddingShooter]

Got it on but wasn't easy. Lube didn't work. Ended up having to slowly grind inside of the HG with a Dremel and sand it smooth.. It took 3 times before it started to slip on. Even then, I had to tap it into place. Definitely nice and tight  Thanks for the suggestions

[Robocop1051]

That's pretty much what I would have done. 

[survivalshop]

Too thick of Cerakote . Yep , work on what you will never see .