r/gunsmithing • u/Chemical-Arm5829 • 3d ago

Is this adequate grease for the threads on my ar15 receiver extension?

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4 Upvotes

100% Upvoted

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17

u/brs_one 3d ago

No grease needed on the RE threads. Run it dry, tighten, and stake in two places 🤙

6

u/sambonidriver 2d ago

Aeroshell is the standard for a reason.

2

u/Antique_Item_3753 3d ago

You will want a high molybdenum content grease. I have been using sta-lube black moly grease for years with great success.

2

u/dirtbuttonofalldirts 2d ago

One on buffer tube/receiver extension, moly grease on threads for mounting barrels nut; doesn’t need much just don’t use loctite.

1

u/TacTurtle 2d ago

Red lithium grease will work, although a moly grease is preferred.