DPMS Free Float installation question

[Boondocker308]

I'm in the process of swapping my slick side LR-308 reciever out for a flattop style. The factory free float is being replaced with a DPMS quad rail tube (pictured below) and it came with no instructions. I'll put a little moly grease on the internal threads of the barrel nut before I torque it to 50-80 ft lbs. My question is the lock collar... should it be greased as well or is a dab or blue loctite a good idea? Does anyone know of a spanner wrench available for this? Thanks for your help!

 

[Sandbogg]

Re: DPMS Free Float installation question

I installed a yankee hill which looks identical to your setup. When I installed mine I put a dab of copper never seize on the upper reciever threads and a dab on the collar nut as well. To tighten the collar nut I used a brass drift. In my opinion if you ever intend to take it apart stay away from loctite. With aluminum your biggest concern is the threads galling or corroding.
If you properly tighten the collar down it should stay together fine without loctite. I threw my loctite away along time ago and have yet to have anything that was properly torqued down come apart.

 

[cruizer]

Re: DPMS Free Float installation question

pipewrench

 

[Boondocker308]

Re: DPMS Free Float installation question

Thanks guys! I'll forget about the loctite.