Just to update the backlog timeframe currently going on at Carrier Comp:
M4 7 round titanium mag tube order placed on March 5th. Just received a call (850 area code) to arrange credit card payment and to inform me that shipment is expected in approximately 2 weeks. So, slightly longer than the early to mid-June estimate from a month and a half ago.
They are very pleasant to converse with, both via email and over the phone.
Yep, can see where the screw is kissing the ARGO system. You can make it work if you shave the thickness of the MLOK cam down which is pretty easy to do with a grit sander or various other tools. You'll end up grinding down the screw at the same time for the clearance.
I'd swap back and forth between the OEM handguard and the rail to see which one you like better.
After I got done removing all the thread lock with Hoppes #9 I use Qtips with Alcohol to wipe around the threads to remove the left over Hoppes residue. I thought the same as you the oil in the Hoppes might affect the Loctite bond.
I was worked up and worried over nothing. It really was easy and, like yours, mine went on without needing any modification.
This really is a nice modification. The sling and light really make this a tier-one home defense weapon.